Ejemplo n.º 1
0
    def test_is_match(self):
        exp = ExpectCertificate()

        msg = Message(ContentType.handshake,
                      bytearray([HandshakeType.certificate]))

        self.assertTrue(exp.is_match(msg))
Ejemplo n.º 2
0
    def test_is_match_with_unmatching_handshake_type(self):
        exp = ExpectCertificate()

        msg = Message(ContentType.handshake,
                      bytearray([HandshakeType.client_hello]))

        self.assertFalse(exp.is_match(msg))
Ejemplo n.º 3
0
    def test_is_match_with_unmatching_content_type(self):
        exp = ExpectCertificate()

        msg = Message(ContentType.application_data,
                      bytearray([HandshakeType.certificate]))

        self.assertFalse(exp.is_match(msg))
Ejemplo n.º 4
0
    def test___init__(self):
        exp = ExpectCertificate()

        self.assertIsNotNone(exp)

        self.assertTrue(exp.is_expect())
        self.assertFalse(exp.is_command())
        self.assertFalse(exp.is_generator())
Ejemplo n.º 5
0
def main():
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    coalescing = False

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:", ["help", "coalescing"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--coalescing':
            coalescing = True
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        KeyUpdateGenerator(message_type=KeyUpdateMessageType.update_requested))
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectKeyUpdate(
        message_type=KeyUpdateMessageType.update_not_requested)
    node = node.next_sibling.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations[
        "post-handshake KeyUpdate msg with update_request"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        KeyUpdateGenerator(
            message_type=KeyUpdateMessageType.update_not_requested))
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations[
        "post-handshake KeyUpdate msg with update_not_request"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        truncate_handshake(
            KeyUpdateGenerator(
                message_type=KeyUpdateMessageType.update_requested), 1))
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectAlert(AlertLevel.fatal,
                                    AlertDescription.decode_error)
    node.next_sibling.add_child(ExpectClose())
    conversations["empty KeyUpdate message"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        pad_handshake(
            KeyUpdateGenerator(
                message_type=KeyUpdateMessageType.update_requested), 1))
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectAlert(AlertLevel.fatal,
                                    AlertDescription.decode_error)
    node.next_sibling.add_child(ExpectClose())
    conversations["large KeyUpdate message"] = conversation

    for msg_type in range(2, 256):
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_AES_128_GCM_SHA256,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {}
        groups = [GroupName.secp256r1]
        ext[ExtensionType.key_share] = key_share_ext_gen(groups)
        ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
            .create([TLS_1_3_DRAFT, (3, 3)])
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        sig_algs = [
            SignatureScheme.rsa_pss_rsae_sha256,
            SignatureScheme.rsa_pss_pss_sha256
        ]
        ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
            .create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
            .create(RSA_SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectEncryptedExtensions())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateVerify())
        node = node.add_child(ExpectFinished())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(KeyUpdateGenerator(message_type=msg_type))
        node = node.add_child(
            ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

        # This message is optional and may show up 0 to many times
        cycle = ExpectNewSessionTicket()
        node = node.add_child(cycle)
        node.add_child(cycle)

        node.next_sibling = ExpectAlert(AlertLevel.fatal,
                                        AlertDescription.illegal_parameter)
        node.next_sibling.add_child(ExpectClose())
        conversations["invalid message_type - {0}, in KeyUpdate msg".format(
            msg_type)] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ApplicationDataGenerator(bytearray(b"GET")))
    node = node.add_child(
        KeyUpdateGenerator(message_type=KeyUpdateMessageType.update_requested))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectKeyUpdate(
        message_type=KeyUpdateMessageType.update_not_requested)
    node = node.next_sibling.add_child(
        ApplicationDataGenerator(bytearray(b" / HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations[
        "app data split, conversation with KeyUpdate msg"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    number_of_ku_msg = 32
    for i in range(number_of_ku_msg):
        node = node.add_child(
            KeyUpdateGenerator(
                message_type=KeyUpdateMessageType.update_requested))
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectKeyUpdate(
        message_type=KeyUpdateMessageType.update_not_requested)
    node = node.next_sibling
    # the server can coalesce the respone to a single key update
    # or it may reply to every message in particular
    if not coalescing:
        for i in range(number_of_ku_msg - 1):
            node = node.add_child(
                ExpectKeyUpdate(
                    message_type=KeyUpdateMessageType.update_not_requested))

    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["multiple KeyUpdate messages"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    fragment_list = []
    keyupdate_gen = KeyUpdateGenerator(
        message_type=KeyUpdateMessageType.update_requested)
    node = node.add_child(split_message(keyupdate_gen, fragment_list, 2))
    node = node.add_child(FlushMessageList(fragment_list))
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectKeyUpdate(
        message_type=KeyUpdateMessageType.update_not_requested)
    node = node.next_sibling.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["fragmented keyupdate msg"] = conversation

    for fragment_len in range(1, 5):
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_AES_128_GCM_SHA256,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {}
        groups = [GroupName.secp256r1]
        key_shares = []
        for group in groups:
            key_shares.append(key_share_gen(group))
        ext[ExtensionType.key_share] = ClientKeyShareExtension().create(
            key_shares)
        ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
            .create([TLS_1_3_DRAFT, (3, 3)])
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        sig_algs = [
            SignatureScheme.rsa_pss_rsae_sha256,
            SignatureScheme.rsa_pss_pss_sha256
        ]
        ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
            .create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
            .create(RSA_SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectEncryptedExtensions())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateVerify())
        node = node.add_child(ExpectFinished())
        node = node.add_child(FinishedGenerator())

        fragment_list = []
        keyupdate_gen = KeyUpdateGenerator(
            message_type=KeyUpdateMessageType.update_requested)
        node = node.add_child(
            split_message(keyupdate_gen, fragment_list, fragment_len))
        node = node.add_child(
            ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
        node = node.add_child(FlushMessageList(fragment_list))

        # This message is optional and may show up 0 to many times
        cycle = ExpectNewSessionTicket()
        node = node.add_child(cycle)
        node.add_child(cycle)

        node.next_sibling = ExpectAlert(AlertLevel.fatal,
                                        AlertDescription.unexpected_message)
        node.next_sibling.add_child(ExpectClose())
        conversations[
            "{0}/{1} fragmented keyupdate msg, appdata between".format(
                fragment_len, 5 - fragment_len)] = conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throught
    sanity_test = ('sanity', conversations['sanity'])
    ordered_tests = chain([sanity_test],
                          islice(
                              filter(lambda x: x[0] != 'sanity',
                                     conversations.items()), num_limit),
                          [sanity_test])

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except Exception:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Test with KeyUpdate msg with different msg_type or fragmented msg.")
    print("Verify that server will correctly handle updating the keys")
    print("or refuse the connection with relevant Alert msg.")
    print("version: {0}\n".format(version))

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 6
0
def main():
    host = "localhost"
    port = 4433
    num_limit = 100
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None
    dhe = False

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:n:d", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '-d':
            dhe = True
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_256_CCM,
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_DHE_RSA_WITH_AES_256_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_RSA_WITH_AES_256_CCM,
            CipherSuite.TLS_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_RSA_WITH_AES_256_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    # reject ciphers in TLS1.1
    conversation = Connect(host, port)
    node = conversation
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_256_CCM,
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_DHE_RSA_WITH_AES_256_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_RSA_WITH_AES_256_CCM,
            CipherSuite.TLS_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_RSA_WITH_AES_256_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, version=(3, 2)))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.handshake_failure))
    node.add_child(ExpectClose())
    conversations["AES-CCM in TLS1.1"] = conversation

    # empty application data message acceptance
    node = conversation
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(bytearray()))
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    conversations["empty app data"] = conversation

    # empty application data message acceptance with _8 ciphers
    node = conversation
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(bytearray()))
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    conversations["empty app data with _8 ciphers"] = conversation

    # 1/n-1 message splitting
    conversation = Connect(host, port)
    node = conversation
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(bytearray(b"G")))
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"ET / HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    conversations["1/n-1 record splitting"] = conversation

    # plaintext just under the maximum permissible
    conversation = Connect(host, port)
    node = conversation
    node = node.add_child(SetMaxRecordSize(2**16 - 1))
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    data = bytearray(b"GET / HTTP/1.0\r\n" + b"X-test: " + b"A" *
                     (2**14 - 28) + b"\r\n\r\n")
    assert len(data) == 2**14
    node = node.add_child(ApplicationDataGenerator(data))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    # allow for multiple application data records in response
    node = node.add_child(ExpectApplicationData())
    loop = node
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    loop.next_sibling = node
    node.next_sibling = ExpectClose()
    conversations["max size plaintext"] = conversation

    # plaintext over the maximum permissible
    conversation = Connect(host, port)
    node = conversation
    node = node.add_child(SetMaxRecordSize(2**16 - 1))
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    data = bytearray(b"GET / HTTP/1.0\r\n" + b"X-test: " + b"A" *
                     (2**14 - 28) + b"\r\n\r\n")
    assert len(data) == 2**14
    node = node.add_child(ApplicationDataGenerator(data))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    # allow for multiple application data records in response
    node = node.add_child(ExpectApplicationData())
    loop = node
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    loop.next_sibling = node
    node.next_sibling = ExpectClose()
    conversations["max size plaintext with _8 ciphers"] = conversation

    conversation = Connect(host, port)
    node = conversation
    node = node.add_child(SetMaxRecordSize(2**16 - 1))
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    data = bytearray(b"GET / HTTP/1.0\r\n" + b"X-test: " + b"A" *
                     (2**14 - 28 + 1) + b"\r\n\r\n")
    assert len(data) == 2**14 + 1
    node = node.add_child(ApplicationDataGenerator(data))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, [
            AlertDescription.decompression_failure,
            AlertDescription.record_overflow
        ]))
    node.add_child(ExpectClose())
    conversations["too big plaintext"] = conversation

    conversation = Connect(host, port)
    node = conversation
    node = node.add_child(SetMaxRecordSize(2**16 - 1))
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    data = bytearray(b"GET / HTTP/1.0\r\n" + b"X-test: " + b"A" *
                     (2**14 - 28 + 1) + b"\r\n\r\n")
    assert len(data) == 2**14 + 1
    node = node.add_child(ApplicationDataGenerator(data))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, [
            AlertDescription.decompression_failure,
            AlertDescription.record_overflow
        ]))
    node.add_child(ExpectClose())
    conversations["too big plaintext with _8 ciphers"] = conversation

    conversation = Connect(host, port)
    node = conversation
    node = node.add_child(SetMaxRecordSize(2**16 - 1))
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    data = bytearray(b"GET / HTTP/1.0\r\n" + b"X-test: " + b"A" *
                     (2**14 + 1024 - 28) + b"\r\n\r\n")
    assert len(data) == 2**14 + 1024
    node = node.add_child(ApplicationDataGenerator(data))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, [
            AlertDescription.decompression_failure,
            AlertDescription.record_overflow
        ]))
    node.add_child(ExpectClose())
    conversations["too big plaintext - max compress"] = conversation

    conversation = Connect(host, port)
    node = conversation
    node = node.add_child(SetMaxRecordSize(2**16 - 1))
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    data = bytearray(b"GET / HTTP/1.0\r\n" + b"X-test: " + b"A" *
                     (2**14 + 1024 - 28) + b"\r\n\r\n")
    assert len(data) == 2**14 + 1024
    node = node.add_child(ApplicationDataGenerator(data))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, [
            AlertDescription.decompression_failure,
            AlertDescription.record_overflow
        ]))
    node.add_child(ExpectClose())
    conversations[
        "too big plaintext - max compress with _8 ciphers"] = conversation

    conversation = Connect(host, port)
    node = conversation
    node = node.add_child(SetMaxRecordSize(2**16 - 1))
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    data = bytearray(b"GET / HTTP/1.0\r\n" + b"X-test: " + b"A" *
                     (2**14 + 1024 - 28 + 1) + b"\r\n\r\n")
    assert len(data) == 2**14 + 1024 + 1
    node = node.add_child(ApplicationDataGenerator(data))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.record_overflow))
    node.add_child(ExpectClose())
    conversations["too big plaintext - above TLSCompressed max"] = conversation

    conversation = Connect(host, port)
    node = conversation
    node = node.add_child(SetMaxRecordSize(2**16 - 1))
    ext = {}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ext = None
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CCM_8,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    data = bytearray(b"GET / HTTP/1.0\r\n" + b"X-test: " + b"A" *
                     (2**14 + 1024 - 28 + 1) + b"\r\n\r\n")
    assert len(data) == 2**14 + 1024 + 1
    node = node.add_child(ApplicationDataGenerator(data))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.record_overflow))
    node.add_child(ExpectClose())
    conversations[
        "too big plaintext - above TLSCompressed max with _8 ciphers"] = conversation

    # fuzz the tag (last 16 bytes or last 8 bytes in case of _8 ciphers)
    for n in [17, 9]:
        for val in [0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80]:
            for pos in range(-1, -n, -1):
                conversation = Connect(host, port)
                node = conversation
                ext = {}
                if dhe:
                    groups = [GroupName.secp256r1, GroupName.ffdhe2048]
                    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
                        .create(groups)
                    ext[ExtensionType.signature_algorithms] = \
                        SignatureAlgorithmsExtension().create(SIG_ALL)
                    ext[ExtensionType.signature_algorithms_cert] = \
                        SignatureAlgorithmsCertExtension().create(SIG_ALL)
                    if n == 17:
                        ciphers = [
                            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
                            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM
                        ]
                    else:
                        ciphers = [
                            CipherSuite.TLS_DHE_RSA_WITH_AES_256_CCM_8,
                            CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_256_CCM_8
                        ]
                else:
                    ext = None
                    if n == 17:
                        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CCM]
                    else:
                        ciphers = [CipherSuite.TLS_RSA_WITH_AES_256_CCM_8]
                node = node.add_child(
                    ClientHelloGenerator(ciphers, extensions=ext))
                node = node.add_child(ExpectServerHello())
                node = node.add_child(ExpectCertificate())
                if dhe:
                    node = node.add_child(ExpectServerKeyExchange())
                node = node.add_child(ExpectServerHelloDone())
                node = node.add_child(ClientKeyExchangeGenerator())
                node = node.add_child(ChangeCipherSpecGenerator())
                node = node.add_child(FinishedGenerator())
                node = node.add_child(ExpectChangeCipherSpec())
                node = node.add_child(ExpectFinished())
                msg = ApplicationDataGenerator(
                    bytearray(b"GET / HTTP/1.0\r\n\r\n"))
                node = node.add_child(
                    fuzz_encrypted_message(msg, xors={pos: val}))
                node = node.add_child(
                    ExpectAlert(AlertLevel.fatal,
                                AlertDescription.bad_record_mac))
                node.add_child(ExpectClose())
                conversations["fuzz tag with {0} on pos {1} - using cipher with {2} byte tag".format(val, pos, n-1)] \
                        = conversation

    # too small message handling
    for val in range(16):
        conversation = Connect(host, port)
        node = conversation
        ext = {}
        if dhe:
            groups = [GroupName.secp256r1, GroupName.ffdhe2048]
            ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
                .create(groups)
            ext[ExtensionType.signature_algorithms] = \
                SignatureAlgorithmsExtension().create(SIG_ALL)
            ext[ExtensionType.signature_algorithms_cert] = \
                SignatureAlgorithmsCertExtension().create(SIG_ALL)
            ciphers = [
                CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM,
                CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM,
                CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
            ]
        else:
            ext = None
            ciphers = [
                CipherSuite.TLS_RSA_WITH_AES_128_CCM,
                CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
            ]
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectCertificate())
        if dhe:
            node = node.add_child(ExpectServerKeyExchange())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        # any byte value will do, a1 chosen at random
        msg = PlaintextMessageGenerator(ContentType.application_data,
                                        bytearray([0xa1] * val))
        node = node.add_child(msg)
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, AlertDescription.bad_record_mac))
        node.add_child(ExpectClose())
        conversations["{0} bytes long ciphertext".format(val)] \
                = conversation

    # too small message handling against _8 ciphers
    for val in range(8):
        conversation = Connect(host, port)
        node = conversation
        ext = {}
        if dhe:
            groups = [GroupName.secp256r1, GroupName.ffdhe2048]
            ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
                .create(groups)
            ext[ExtensionType.signature_algorithms] = \
                SignatureAlgorithmsExtension().create(SIG_ALL)
            ext[ExtensionType.signature_algorithms_cert] = \
                SignatureAlgorithmsCertExtension().create(SIG_ALL)
            ciphers = [
                CipherSuite.TLS_ECDHE_ECDSA_WITH_AES_128_CCM_8,
                CipherSuite.TLS_DHE_RSA_WITH_AES_128_CCM_8,
                CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
            ]
        else:
            ext = None
            ciphers = [
                CipherSuite.TLS_RSA_WITH_AES_128_CCM_8,
                CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
            ]
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectCertificate())
        if dhe:
            node = node.add_child(ExpectServerKeyExchange())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        # any byte value will do, a1 chosen at random
        msg = PlaintextMessageGenerator(ContentType.application_data,
                                        bytearray([0xa1] * val))
        node = node.add_child(msg)
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, AlertDescription.bad_record_mac))
        node.add_child(ExpectClose())
        conversations["{0} bytes long ciphertext against _8 ciphers".format(val)] \
                = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items()
                         if k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items()
                         if (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                    bad += 1
                    failed.append(c_name)
                    print("Expected error message: {0}\n".format(
                        expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("This script runs fuzzing tests against TLS1.2 AES-CCM ciphers")

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2 * len(sanity_tests)))
    print("SKIP: {0}".format(
        len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed, key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad or xpass:
        sys.exit(1)
Ejemplo n.º 7
0
def main():
    conversations = {}

    conversation = Connect("localhost", 4433)
    node = conversation
    # any CBC will do, but the rest of code expects a 128 block cipher
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(
        ClientHelloGenerator(
            ciphers, extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["sanity check"] = conversation

    # CVE-2016-2107 reproducer
    # to reproduce the vulnerability we need to send a packet that decrypts
    # to 32 ASCII "A" bytes
    conversation = Connect("localhost", 4433)
    node = conversation
    # any CBC will do, but the rest of code expects a 128 bit block cipher and
    # 160 bit HMAC
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(
        ClientHelloGenerator(
            ciphers, extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # we are encrypting 4 blocks, with 3 blocks (48 bytes) being data, MAC and padding
    node = node.add_child(
        fuzz_plaintext(ApplicationDataGenerator(
            bytearray(b"GET / HTTP/1.0\n\n")),
                       substitutions={i: 0x31
                                      for i in range(-1, -49, -1)}))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.bad_record_mac))
    node = node.add_child(ExpectClose())

    conversations["CVE-2016-2107"] = conversation

    good = 0
    bad = 0

    for conversation_name, conversation in conversations.items():
        print("{0} ...".format(conversation_name))

        runner = Runner(conversation)

        res = True
        try:
            runner.run()
        except:
            print("Error while processing")
            print(traceback.format_exc())
            print("")
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 8
0
def main():
    """check if incorrect MAC hash is rejected by server"""
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\r\n\r\n"))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert(AlertLevel.warning,
                                      AlertDescription.close_notify))
    # sending of the close_notify reply to a close_notify is very unrealiable
    # ignore it not being sent
    node.next_sibling = ExpectClose()

    conversations["sanity"] = conversation

    for pos, val in [
                     (-1, 0x01),
                     (-1, 0xff),
                     (-2, 0x01),
                     (-2, 0xff),
                     (-6, 0x01),
                     (-6, 0xff),
                     (-12, 0x01),
                     (-12, 0xff),
                     (-20, 0x01),
                     (-20, 0xff),
                     # SHA-1 HMAC has just 20 bytes
                     ]:
        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        node = node.add_child(ClientHelloGenerator(ciphers))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(fuzz_mac(ApplicationDataGenerator(
                                                        b"GET / HTTP/1.0\n\n"),
                                       xors={pos:val}))
        node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                          AlertDescription.bad_record_mac))
        node = node.add_child(ExpectClose())

        conversations["XOR position " + str(pos) + " with " + str(hex(val))] = \
                conversation

        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        node = node.add_child(ClientHelloGenerator(ciphers))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        app_data = b"GET / HTTP/1.0\r\nX-Fo: 0\r\n\r\n"
        assert (len(app_data) + 20 + 1) % 16 == 0
        node = node.add_child(fuzz_mac(ApplicationDataGenerator(app_data),
                                       xors={pos:val}))
        node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                          AlertDescription.bad_record_mac))
        node = node.add_child(ExpectClose())

        conversations["XOR position {0} with {1} (short pad)"
                      .format(pos, hex(val))] = \
                conversation

        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        node = node.add_child(ClientHelloGenerator(ciphers))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        text = b"GET / HTTP/1.0\nX-bad: aaaa\n\n"
        hmac_tag_length = 20
        block_size = 16
        # make sure that padding has full blocks to work with
        assert (len(text) + hmac_tag_length) % block_size == 0
        node = node.add_child(fuzz_mac(fuzz_padding(ApplicationDataGenerator(text),
                                                    min_length=255),
                                       xors={pos:val}))
        node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                          AlertDescription.bad_record_mac))
        node = node.add_child(ExpectClose())

        conversations["XOR position {0} with {1} (long pad)"
                      .format(pos, hex(val))] = \
                conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_test = ('sanity', conversations['sanity'])
    ordered_tests = chain([sanity_test],
                          islice(filter(lambda x: x[0] != 'sanity',
                                        conversations.items()), num_limit),
                          [sanity_test])

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except Exception:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
def main():
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    node = node.add_child(ClientHelloGenerator(ciphers))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    #
    # Test sending invalid (too short or too long) Client Key Exchange messages
    #

    conver = Connect(host, port)
    node = conver
    #ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
    #           CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(
        ClientHelloGenerator(
            ciphers, extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(pad_handshake(ClientKeyExchangeGenerator(), 1))
    #node = node.add_child(ChangeCipherSpecGenerator())
    #node = node.add_child(FinishedGenerator())
    #node = node.add_child(ExpectChangeCipherSpec())
    #node = node.add_child(ExpectFinished())
    #node = node.add_child(AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["padded Client Key Exchange"] = conver

    conver = Connect(host, port)
    node = conver
    #ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
    #           CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(
        ClientHelloGenerator(
            ciphers, extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(truncate_handshake(ClientKeyExchangeGenerator(), 1))
    #node = node.add_child(ChangeCipherSpecGenerator())
    #node = node.add_child(FinishedGenerator())
    #node = node.add_child(ExpectChangeCipherSpec())
    #node = node.add_child(ExpectFinished())
    #node = node.add_child(AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["truncated Client Key Exchange"] = conver

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throught
    sanity_test = ('sanity', conversations['sanity'])
    ordered_tests = chain([sanity_test],
                          islice(
                              filter(lambda x: x[0] != 'sanity',
                                     conversations.items()), num_limit),
                          [sanity_test])

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
def main():
    """check if server handles incorrect resumption w/server name indication"""
    host = "localhost"
    hostname = "localhost4"
    port = 4433
    num_limit = None
    run_exclude = set()

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:", ["help", "sni="])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        elif opt == '--sni':
            hostname = arg
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    # sanity check without SNI
    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create([
            (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa)
            for x in ['sha512', 'sha384', 'sha256', 'sha224', 'sha1']
        ]),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\n\n"))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertDescription.close_notify))
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert(AlertLevel.warning,
                                    AlertDescription.close_notify)
    node.next_sibling.add_child(ExpectClose())
    conversations["sanity"] = conversation

    # sanity check SNI
    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create([
            (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa)
            for x in ['sha512', 'sha384', 'sha256', 'sha224', 'sha1']
        ]),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    sni = SNIExtension().create(bytearray(hostname, 'utf-8'))
    ext[ExtensionType.server_name] = sni
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\n\n"))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertDescription.close_notify))
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert(AlertLevel.warning,
                                    AlertDescription.close_notify)
    node.next_sibling.add_child(ExpectClose())
    conversations["Sanity check, SNI"] = conversation

    # sanity check bad SNI
    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create([
            (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa)
            for x in ['sha512', 'sha384', 'sha256', 'sha224', 'sha1']
        ]),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    sni = SNIExtension().create(
        bytearray(hostname, 'utf-8') + bytearray(b'\x00'))
    ext[ExtensionType.server_name] = sni
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.illegal_parameter))
    node = node.add_child(ExpectClose())
    conversations["Sanity check, bad SNI"] = conversation

    # session resume with malformed SNI
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    ext = {
        ExtensionType.renegotiation_info:
        None,
        ExtensionType.server_name:
        SNIExtension().create(bytearray(hostname, 'utf-8'))
    }
    node = node.add_child(
        ClientHelloGenerator(ciphers, session_id=bytearray(32),
                             extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    close = ExpectClose()
    node.next_sibling = close
    node = node.add_child(ExpectClose())
    node = node.add_child(Close())
    node = node.add_child(Connect(host, port))
    close.add_child(node)

    node = node.add_child(ResetHandshakeHashes())
    node = node.add_child(ResetRenegotiationInfo())
    ext = {
        ExtensionType.renegotiation_info:
        None,
        ExtensionType.server_name:
        SNIExtension().create(
            bytearray(hostname, 'utf-8') + bytearray(b'\x00'))
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.illegal_parameter))
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())

    conversations["session resume with malformed SNI"] = conversation

    # session resume with malformed SNI
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    ext = {
        ExtensionType.renegotiation_info:
        None,
        ExtensionType.server_name:
        SNIExtension().create(bytearray(hostname, 'utf-8'))
    }
    node = node.add_child(
        ClientHelloGenerator(ciphers, session_id=bytearray(32),
                             extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    close = ExpectClose()
    node.next_sibling = close
    node = node.add_child(ExpectClose())
    node = node.add_child(Close())
    node = node.add_child(Connect(host, port))
    close.add_child(node)

    node = node.add_child(ResetHandshakeHashes())
    node = node.add_child(ResetRenegotiationInfo())
    ext = {
        ExtensionType.renegotiation_info:
        None,
        ExtensionType.server_name:
        SNIExtension().create(
            bytearray(b'www.') + bytearray(hostname, 'utf-8'))
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None},
                          resume=False))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())

    conversations["session resume with different SNI"] = conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throught
    sanity_test = ('sanity', conversations['sanity'])
    ordered_tests = chain([sanity_test],
                          islice(
                              filter(lambda x: x[0] != 'sanity',
                                     conversations.items()), num_limit),
                          [sanity_test])

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print()
    print("SNI resumption test version 2")

    print("In case the \"session resume with malformed SNI\" or the")
    print("\"session resume with different SNI\" test case")
    print("the server replies with ChangeCipherSpec when we expect")
    print("ExpectCertificate, it means it does not follow a \"MUST NOT\"")
    print("clause of RFC 6066 Section 3")
    print()

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 11
0
def main():
    hostname = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None
    dhe = False

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:x:X:d", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            hostname = arg
        elif opt == '-d':
            dhe = True
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(hostname, port)
    node = conversation
    ext = {ExtensionType.encrypt_then_mac: AutoEmptyExtension()}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    else:
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    extensions = {
        ExtensionType.encrypt_then_mac: None,
        ExtensionType.renegotiation_info: None
    }
    node = node.add_child(ExpectServerHello(extensions=extensions))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    conversation = Connect(hostname, port)
    node = conversation
    # 1st handshake without encrypt-then-mac extension
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [
            CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA
        ]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    extensions = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=extensions))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake with encrypt-then-mac extension
    node = node.add_child(ResetHandshakeHashes())
    ext = {
        ExtensionType.encrypt_then_mac: AutoEmptyExtension(),
        ExtensionType.renegotiation_info: None
    }
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(
        ClientHelloGenerator(ciphers, session_id=bytearray(0), extensions=ext))
    extensions = {
        ExtensionType.encrypt_then_mac: None,
        ExtensionType.renegotiation_info: None
    }
    node = node.add_child(ExpectServerHello(extensions=extensions))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    conversations["Encrypt-then-MAC renegotiation crash"] = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items()
                         if k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items()
                         if (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                    bad += 1
                    failed.append(c_name)
                    print("Expected error message: {0}\n".format(
                        expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2 * len(sanity_tests)))
    print("SKIP: {0}".format(
        len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed, key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad > 0:
        sys.exit(1)
def main():
    """Check that server propoerly rejects pkcs1 signatures in TLS 1.3"""
    hostname = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    cert = None
    private_key = None

    # algorithms to expect from server in Certificate Request
    cr_sigalgs = [
        SignatureScheme.rsa_pss_rsae_sha512,
        SignatureScheme.rsa_pss_pss_sha512,
        SignatureScheme.rsa_pss_rsae_sha384,
        SignatureScheme.rsa_pss_pss_sha384,
        SignatureScheme.rsa_pss_rsae_sha256,
        SignatureScheme.rsa_pss_pss_sha256, SignatureScheme.rsa_pkcs1_sha512,
        SignatureScheme.rsa_pkcs1_sha384, SignatureScheme.rsa_pkcs1_sha256,
        SignatureScheme.rsa_pkcs1_sha224, SignatureScheme.rsa_pkcs1_sha1
    ]

    # algorithms to advertise in ClientHello
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256,
        SignatureScheme.rsa_pss_pss_sha256,
        SignatureScheme.rsa_pss_rsae_sha384, SignatureScheme.rsa_pss_pss_sha384
    ]

    hashalgs = hashes_to_list("sha256 sha384 sha512")

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:s:k:c:", ["help", "hash-order="])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        elif opt == '-s':
            cr_sigalgs = sig_algs_to_ids(arg)
        elif opt == '--hash-order':
            hashalgs = hashes_to_list(arg)
        elif opt == '-k':
            text_key = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_key = str(text_key, 'utf-8')
            private_key = parsePEMKey(text_key, private=True)
        elif opt == '-c':
            text_cert = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_cert = str(text_cert, 'utf-8')
            cert = X509()
            cert.parse(text_cert)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    if not cert or not private_key:
        raise Exception("A Client certificate and a private key are required")

    certType = cert.certAlg

    conversations = {}
    conversations_long = {}

    # sanity check for Client Certificates
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    ext[ExtensionType.key_share] = key_share_ext_gen(groups)
    ext[ExtensionType.supported_versions] = \
        SupportedVersionsExtension().create([(3, 4), (3, 3)])
    ext[ExtensionType.supported_groups] = \
        SupportedGroupsExtension().create(groups)
    ext[ExtensionType.signature_algorithms] = \
        SignatureAlgorithmsExtension().create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = \
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(CertificateGenerator(X509CertChain([cert])))
    node = node.add_child(CertificateVerifyGenerator(private_key))
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    # verify the advertised hashes
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    ext[ExtensionType.key_share] = key_share_ext_gen(groups)
    ext[ExtensionType.supported_versions] = \
        SupportedVersionsExtension().create([(3, 4), (3, 3)])
    ext[ExtensionType.supported_groups] = \
        SupportedGroupsExtension().create(groups)
    ext[ExtensionType.signature_algorithms] = \
        SignatureAlgorithmsExtension().create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = \
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificateRequest(cr_sigalgs))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(CertificateGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)
    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["check sigalgs in cert request"] = conversation

    for sigalg in RSA_SIG_ALL:
        # set if test should succeed or fail based on cert type,
        # advertisement and forbidden algorithms
        expectPass = True
        if certType == "rsa" and sigalg in (
                SignatureScheme.rsa_pss_pss_sha256,
                SignatureScheme.rsa_pss_pss_sha384,
                SignatureScheme.rsa_pss_pss_sha512):
            expectPass = False
        elif certType == "rsa-pss" and sigalg in (
                SignatureScheme.rsa_pss_rsae_sha256,
                SignatureScheme.rsa_pss_rsae_sha384,
                SignatureScheme.rsa_pss_rsae_sha512):
            expectPass = False
        # also verify that pkcs1 signatures are unconditionally refused
        if sigalg in ((HashAlgorithm.md5,
                       SignatureAlgorithm.rsa), SignatureScheme.rsa_pkcs1_sha1,
                      SignatureScheme.rsa_pkcs1_sha224,
                      SignatureScheme.rsa_pkcs1_sha256,
                      SignatureScheme.rsa_pkcs1_sha384,
                      SignatureScheme.rsa_pkcs1_sha512):
            expectPass = False
        # also expect failure if an algorithm is not advertized
        if sigalg not in cr_sigalgs:
            expectPass = False

        conversation = Connect(hostname, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_AES_128_GCM_SHA256,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {}
        groups = [GroupName.secp256r1]
        ext[ExtensionType.key_share] = key_share_ext_gen(groups)
        ext[ExtensionType.supported_versions] = \
            SupportedVersionsExtension().create([(3, 4), (3, 3)])
        ext[ExtensionType.supported_groups] = \
            SupportedGroupsExtension().create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectEncryptedExtensions())
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateVerify())
        node = node.add_child(ExpectFinished())
        node = node.add_child(CertificateGenerator(X509CertChain([cert])))
        # force sigalg
        node = node.add_child(
            CertificateVerifyGenerator(private_key, msg_alg=sigalg))
        node = node.add_child(FinishedGenerator())

        result = "works"
        # only signatures of matching certificate type should work
        if expectPass:
            node = node.add_child(
                ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
            # This message is optional and may show up 0 to many times
            cycle = ExpectNewSessionTicket()
            node = node.add_child(cycle)
            node.add_child(cycle)

            node.next_sibling = ExpectApplicationData()
            node = node.next_sibling.add_child(
                AlertGenerator(AlertLevel.warning,
                               AlertDescription.close_notify))

            node = node.add_child(ExpectAlert())
            node.next_sibling = ExpectClose()

        else:
            node = node.add_child(
                ExpectAlert(AlertLevel.fatal,
                            AlertDescription.illegal_parameter))
            node.add_child(ExpectClose())

            result = "is refused"

        conversations["check {0} signature {1}".format(
            SignatureScheme.toStr(sigalg), result)] = conversation

    # verify that rsa-pss signatures with empty, too short or too long
    # salt fail
    msgalg = sigalg_select("rsa_pss", hashalgs, cr_sigalgs, certType)
    hash_name = SignatureScheme.getHash(SignatureScheme.toRepr(msgalg))
    digest_len = getattr(tlshashlib, hash_name)().digest_size
    for saltlen in (0, digest_len - 1, digest_len + 1):
        conversation = Connect(hostname, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_AES_128_GCM_SHA256,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {}
        groups = [GroupName.secp256r1]
        ext[ExtensionType.key_share] = key_share_ext_gen(groups)
        ext[ExtensionType.supported_versions] = \
            SupportedVersionsExtension().create([(3, 4), (3, 3)])
        ext[ExtensionType.supported_groups] = \
            SupportedGroupsExtension().create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectEncryptedExtensions())
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateVerify())
        node = node.add_child(ExpectFinished())
        node = node.add_child(CertificateGenerator(X509CertChain([cert])))
        # force salt length
        node = node.add_child(
            CertificateVerifyGenerator(private_key, rsa_pss_salt_len=saltlen))
        node = node.add_child(FinishedGenerator())
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, AlertDescription.decrypt_error))
        node.add_child(ExpectClose())

        conversations["check signature with salt length {0}".format(
            saltlen)] = conversation

    # verify that a rsa-pkcs1 signature in a rsa-pss ID envelope fails
    sigalg = sigalg_select("rsa_pkcs1", hashalgs)
    msgalg = sigalg_select("rsa_pss", hashalgs, cr_sigalgs, certType)
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    ext[ExtensionType.key_share] = key_share_ext_gen(groups)
    ext[ExtensionType.supported_versions] = \
        SupportedVersionsExtension().create([(3, 4), (3, 3)])
    ext[ExtensionType.supported_groups] = \
        SupportedGroupsExtension().create(groups)
    ext[ExtensionType.signature_algorithms] = \
        SignatureAlgorithmsExtension().create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = \
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(CertificateGenerator(X509CertChain([cert])))
    node = node.add_child(
        CertificateVerifyGenerator(private_key, sig_alg=sigalg,
                                   msg_alg=msgalg))
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.decrypt_error))
    node.add_child(ExpectClose())

    scheme = SignatureScheme.toRepr(sigalg)
    conversations["check pkcs1 signature with rsa-pss envelope fails"] = \
        conversation

    # verify that a rsa-pss signature with mismatched message hash fails
    msgalg = sigalg_select("rsa_pss", hashalgs, cr_sigalgs, certType)

    # choose a similar scheme with just a different hash, doesn't need to be
    # a server supported sigalg
    hash_name = SignatureScheme.getHash(SignatureScheme.toRepr(msgalg))
    _hashalgs = [x for x in hashalgs if x != hash_name]
    sigalg = sigalg_select("rsa_pss", _hashalgs, cert_type=certType)

    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    ext[ExtensionType.key_share] = key_share_ext_gen(groups)
    ext[ExtensionType.supported_versions] = \
        SupportedVersionsExtension().create([(3, 4), (3, 3)])
    ext[ExtensionType.supported_groups] = \
        SupportedGroupsExtension().create(groups)
    ext[ExtensionType.signature_algorithms] = \
        SignatureAlgorithmsExtension().create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = \
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(CertificateGenerator(X509CertChain([cert])))
    node = node.add_child(
        CertificateVerifyGenerator(private_key, sig_alg=sigalg,
                                   msg_alg=msgalg))
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.decrypt_error))
    node.add_child(ExpectClose())

    conversations["check rsa-pss signature with mismatched hash fails"] = \
        conversation

    # verify that a rsa-pss signature with mismatched MGF1 hash fails
    sigalg = sigalg_select("rsa_pss", hashalgs, cr_sigalgs, certType)

    # choose a different hash to cause mismtach
    hash_name = SignatureScheme.getHash(SignatureScheme.toRepr(msgalg))
    mgf1_hash = [x for x in hashalgs if x != hash_name][0]

    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    ext[ExtensionType.key_share] = key_share_ext_gen(groups)
    ext[ExtensionType.supported_versions] = \
        SupportedVersionsExtension().create([(3, 4), (3, 3)])
    ext[ExtensionType.supported_groups] = \
        SupportedGroupsExtension().create(groups)
    ext[ExtensionType.signature_algorithms] = \
        SignatureAlgorithmsExtension().create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = \
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(CertificateGenerator(X509CertChain([cert])))
    node = node.add_child(
        CertificateVerifyGenerator(private_key,
                                   mgf1_hash=mgf1_hash,
                                   msg_alg=sigalg))
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.decrypt_error))
    node.add_child(ExpectClose())

    conversations["check rsa-pss signature with mismatched mgf1 fails"] = \
        conversation

    # check that fuzzed signatures are rejected
    for pos in range(numBytes(private_key.n)):
        for xor in [0x01, 0x02, 0x04, 0x08, 0x10, 0x20, 0x40, 0x80]:
            conversation = Connect(hostname, port)
            node = conversation
            ciphers = [
                CipherSuite.TLS_AES_128_GCM_SHA256,
                CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
            ]
            ext = {}
            groups = [GroupName.secp256r1]
            ext[ExtensionType.key_share] = key_share_ext_gen(groups)
            ext[ExtensionType.supported_versions] = \
                SupportedVersionsExtension().create([(3, 4), (3, 3)])
            ext[ExtensionType.supported_groups] = \
                SupportedGroupsExtension().create(groups)
            ext[ExtensionType.signature_algorithms] = \
                SignatureAlgorithmsExtension().create(sig_algs)
            ext[ExtensionType.signature_algorithms_cert] = \
                SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
            node = node.add_child(ClientHelloGenerator(ciphers,
                                                       extensions=ext))
            node = node.add_child(ExpectServerHello())
            node = node.add_child(ExpectChangeCipherSpec())
            node = node.add_child(ExpectEncryptedExtensions())
            node = node.add_child(ExpectCertificateRequest())
            node = node.add_child(ExpectCertificate())
            node = node.add_child(ExpectCertificateVerify())
            node = node.add_child(ExpectFinished())
            node = node.add_child(CertificateGenerator(X509CertChain([cert])))
            node = node.add_child(
                CertificateVerifyGenerator(private_key,
                                           padding_xors={pos: xor}))
            node = node.add_child(FinishedGenerator())
            node = node.add_child(
                ExpectAlert(AlertLevel.fatal, AlertDescription.decrypt_error))
            node.add_child(ExpectClose())

            scheme = SignatureScheme.toRepr(sigalg)
            conversations_long["check that fuzzed signatures are rejected." +
                               " Malformed {0} - xor {1} at {2}".format(
                                   certType, hex(xor), pos)] = conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations_long)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    short_tests = [(k, v) for k, v in conversations.items() if k != 'sanity']
    long_tests = list(conversations_long.items())
    long_sampled_tests = sample(long_tests, min(num_limit, len(long_tests)))
    regular_tests = sample(long_sampled_tests + short_tests,
                           len(long_sampled_tests) + len(short_tests))
    ordered_tests = chain(sanity_tests, regular_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except Exception:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Test to verify that server properly accepts or refuses")
    print("signatures in TLS1.3; PKCS1 signatures are always refused.")
    print("Other signatures are accepted or refused accordingly to")
    print("the certificate type provided ('rsa' vs 'rsa-pss').\n")
    print("version: {0}\n".format(version))

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 13
0
def main():
    hostname = "localhost"
    port = 4433
    number_of_alerts = 4

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            hostname = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-n':
            number_of_alerts = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    conversations = {}

    conversation = Connect(hostname, port, version=(3, 3))
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers))
    for _ in range(number_of_alerts):  # sending alerts during handshake
        node = node.add_child(
            AlertGenerator(  # alert description: 46, 41, 43
                AlertLevel.warning, AlertDescription.unsupported_certificate))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    conversations["SSL Death Alert without getting alert"] = conversation

    conversation = Connect(hostname, port, version=(3, 3))
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers))
    for _ in range(number_of_alerts + 1):
        node = node.add_child(
            AlertGenerator(AlertLevel.warning,
                           AlertDescription.unsupported_certificate))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ExpectAlert(AlertLevel.fatal))
    node = node.add_child(ExpectClose())
    conversations["SSL Death Alert with getting alert"] = conversation

    good = 0
    bad = 0

    for conversation_name, conversation in conversations.items():
        print("{0} ...".format(conversation_name))

        runner = Runner(conversation)

        res = True
        try:
            runner.run()
        except:
            print("Error while processing")
            print(traceback.format_exc())
            print("")
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 14
0
def main():
    """check if zero-filled padding is accepted by server in SSLv3"""
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    # normal connection
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, version=(3, 0)))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    text = b"GET / HTTP/1.0\nX-bad: aaaa\n\n"
    node = node.add_child(ApplicationDataGenerator(text))
    node = node.add_child(ExpectApplicationData())
    # BEAST 1/n-1 splitting
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert(AlertLevel.warning,
                                      AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())

    conversations["sanity"] = \
            conversation

    # zero-fill SSLv3 padding
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, version=(3, 0)))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    text = b"GET / HTTP/1.0\nX-bad: aaaa\n\n"
    hmac_tag_length = 20  # because we're using HMAC-SHA-1
    block_size = 16  # because we're suing AES
    # make sure that padding has full block to work with
    assert (len(text) + hmac_tag_length) % block_size == 0
    node = node.add_child(fuzz_padding(ApplicationDataGenerator(text),
                                       # set all bytes of pad to b'\x00'
                                       # with exception of the length byte
                                       substitutions=dict(
                                           (x, 0) for x in range(0, 15))))
    node = node.add_child(ExpectApplicationData())
    # BEAST 1/n-1 splitting
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert(AlertLevel.warning,
                                      AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())

    conversations["zero-filled padding in SSLv3"] = \
            conversation

    # max size SSLv3 padding
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, version=(3, 0)))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    text = b"GET / HTTP/1.0\nX-bad: aaaa\n\n"
    hmac_tag_length = 20
    block_size = 16
    # make sure that padding has full block to work with
    assert (len(text) + hmac_tag_length) % block_size == 0
    node = node.add_child(fuzz_padding(ApplicationDataGenerator(text),
                                       min_length=128//8))
    node = node.add_child(ExpectApplicationData())
    # BEAST 1/n-1 splitting
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert(AlertLevel.warning,
                                      AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())

    conversations["max acceptable padding in SSLv3"] = \
            conversation

    # too much padding in SSLv3
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, version=(3, 0)))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    text = b"GET / HTTP/1.0\nX-bad: aaaa\n\n"
    hmac_tag_length = 20
    block_size = 16
    # make sure that padding has full block to work with
    assert (len(text) + hmac_tag_length) % block_size == 0
    node = node.add_child(fuzz_padding(ApplicationDataGenerator(text),
                                       # make the padding longer than the block
                                       # size of the cipher
                                       min_length=(128//8)+1))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.bad_record_mac))
    node.add_child(ExpectClose())

    conversations["excessive padding in SSLv3 (valid in TLS 1.0)"] = \
            conversation

    # max size SSLv3 padding
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, version=(3, 0)))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    text = b"GET / HTTP/1.0\r\nX-bad: a\r\n"
    # some servers put limits on size of headers, e.g. Apache 2.3 has 8190 Bytes
    for i in range(3):
        text += b"X-ba" + compatAscii2Bytes(str(i)) + b": " + \
                b"a" * (4096 - 9) + b"\r\n"
    text += b"X-ba3: " + b"a" * (4096 - 37) + b"\r\n"
    text += b"\r\n"
    assert len(text) == 2**14, len(text)
    # as SSLv3 specifies that padding must be minimal length, that means
    # there is just one valid length of padding, no need to force it
    node = node.add_child(ApplicationDataGenerator(text))
    node = node.add_child(ExpectApplicationData())
    # BEAST 1/n-1 splitting
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert(AlertLevel.warning,
                                      AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())

    conversations["max Application Data in SSLv3"] = \
            conversation


    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items() if
                          k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items() if
                         (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                        bad += 1
                        failed.append(c_name)
                        print("Expected error message: {0}\n"
                            .format(expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Script to verify different padding scenarios in SSLv3.")
    print("Check if the padding in SSLv3 follows the RFC6101\n")

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2*len(sanity_tests)))
    print("SKIP: {0}".format(len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed ,key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad or xpass:
        sys.exit(1)
Ejemplo n.º 15
0
def main():
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_AES_128_GCM_SHA256,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {}
    groups = [GroupName.secp256r1,
              GroupName.secp384r1,
              GroupName.secp521r1,
              GroupName.x25519,
              GroupName.x448]
    ext[ExtensionType.key_share] = key_share_ext_gen(groups)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [SignatureScheme.rsa_pss_rsae_sha256,
                SignatureScheme.rsa_pss_pss_sha256]
    sig_algs += ECDSA_SIG_TLS1_3_ALL
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(AlertGenerator(AlertLevel.warning,
                                       AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    for group in groups:
        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_AES_128_GCM_SHA256,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        ext = {}
        ext[ExtensionType.key_share] = key_share_ext_gen([group])
        ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
            .create([TLS_1_3_DRAFT, (3, 3)])
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create([group])
        ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
            .create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
            .create(SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectEncryptedExtensions())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateVerify())
        node = node.add_child(ExpectFinished())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ApplicationDataGenerator(
            bytearray(b"GET / HTTP/1.0\r\n\r\n")))

        # This message is optional and may show up 0 to many times
        cycle = ExpectNewSessionTicket()
        node = node.add_child(cycle)
        node.add_child(cycle)

        node.next_sibling = ExpectApplicationData()
        node = node.next_sibling.add_child(AlertGenerator(AlertLevel.warning,
                                           AlertDescription.close_notify))

        node = node.add_child(ExpectAlert())
        node.next_sibling = ExpectClose()
        conversations["sanity - {0}".format(GroupName.toRepr(group))] = conversation

        # padded representation
        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_AES_128_GCM_SHA256,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        ext = {}
        key_share = key_share_gen(group)
        key_share.key_exchange += bytearray(b'\x00')
        ext[ExtensionType.key_share] = ClientKeyShareExtension().create([key_share])
        ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
            .create([TLS_1_3_DRAFT, (3, 3)])
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create([group])
        ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
            .create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
            .create(SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                          AlertDescription.illegal_parameter))
        node.add_child(ExpectClose())
        conversations["{0} - right 0-padded key_share"
                      .format(GroupName.toRepr(group))] = conversation

        # truncated representation
        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_AES_128_GCM_SHA256,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        ext = {}
        key_share = key_share_gen(group)
        key_share.key_exchange.pop()
        ext[ExtensionType.key_share] = ClientKeyShareExtension().create([key_share])
        ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
            .create([TLS_1_3_DRAFT, (3, 3)])
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create([group])
        ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
            .create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
            .create(SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                          AlertDescription.illegal_parameter))
        node.add_child(ExpectClose())
        conversations["{0} - right-truncated key_share"
                      .format(GroupName.toRepr(group))] = conversation

        # key share from wrong curve
        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_AES_128_GCM_SHA256,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        ext = {}
        key_share = key_share_gen(group)
        if group == GroupName.secp256r1:
            key_share2 = key_share_gen(GroupName.secp384r1)
        else:
            key_share2 = key_share_gen(GroupName.secp256r1)
        key_share.key_exchange = key_share2.key_exchange
        ext[ExtensionType.key_share] = ClientKeyShareExtension().create([key_share])
        ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
            .create([TLS_1_3_DRAFT, (3, 3)])
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create([group])
        ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
            .create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
            .create(SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                          AlertDescription.illegal_parameter))
        node.add_child(ExpectClose())
        conversations["{0} - key share from other curve"
                      .format(GroupName.toRepr(group))] = conversation

        # 0-point
        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_AES_128_GCM_SHA256,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        ext = {}
        key_share = KeyShareEntry().create(group, bytearray(b'\x00'))
        ext[ExtensionType.key_share] = ClientKeyShareExtension().create([key_share])
        ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
            .create([TLS_1_3_DRAFT, (3, 3)])
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create([group])
        ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
            .create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
            .create(SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                          AlertDescription.illegal_parameter))
        node.add_child(ExpectClose())
        conversations["{0} - point at infinity"
                      .format(GroupName.toRepr(group))] = conversation

        if group not in (GroupName.x25519, GroupName.x448):
            # points not on curve
            conversation = Connect(host, port)
            node = conversation
            ciphers = [CipherSuite.TLS_AES_128_GCM_SHA256,
                       CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
            ext = {}
            key_share = key_share_gen(group)
            key_share.key_exchange[-1] ^= 0xff
            ext[ExtensionType.key_share] = ClientKeyShareExtension()\
                .create([key_share])
            ext[ExtensionType.supported_versions] = \
                SupportedVersionsExtension()\
                .create([TLS_1_3_DRAFT, (3, 3)])
            ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
                .create([group])
            ext[ExtensionType.signature_algorithms] = \
                SignatureAlgorithmsExtension()\
                .create(sig_algs)
            ext[ExtensionType.signature_algorithms_cert] = \
                SignatureAlgorithmsCertExtension()\
                .create(SIG_ALL)
            node = node.add_child(ClientHelloGenerator(ciphers,
                                                       extensions=ext))
            node = node.add_child(ExpectAlert(
                AlertLevel.fatal,
                AlertDescription.illegal_parameter))
            node.add_child(ExpectClose())
            conversations["{0} - point outside curve"
                          .format(GroupName.toRepr(group))] = conversation

            # all-zero point
            conversation = Connect(host, port)
            node = conversation
            ciphers = [CipherSuite.TLS_AES_128_GCM_SHA256,
                       CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
            ext = {}
            key_share = key_share_gen(group)
            key_share.key_exchange = bytearray(len(key_share.key_exchange))
            key_share.key_exchange[0] = 0x04  # SEC1 uncompressed point encoding
            ext[ExtensionType.key_share] = ClientKeyShareExtension()\
                .create([key_share])
            ext[ExtensionType.supported_versions] = \
                SupportedVersionsExtension()\
                .create([TLS_1_3_DRAFT, (3, 3)])
            ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
                .create([group])
            ext[ExtensionType.signature_algorithms] = \
                SignatureAlgorithmsExtension()\
                .create(sig_algs)
            ext[ExtensionType.signature_algorithms_cert] = \
                SignatureAlgorithmsCertExtension()\
                .create(SIG_ALL)
            node = node.add_child(ClientHelloGenerator(ciphers,
                                                       extensions=ext))
            node = node.add_child(ExpectAlert(
                AlertLevel.fatal,
                AlertDescription.illegal_parameter))
            node.add_child(ExpectClose())
            conversations["{0} - x=0, y=0"
                          .format(GroupName.toRepr(group))] = conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    regular_tests = [(k, v) for k, v in conversations.items() if k != 'sanity']
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except Exception:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Basic ECDHE curve tests in TLS 1.3")
    print("Check if invalid, malformed and incompatible curve key_shares are")
    print("rejected by server")
    print("See also: test-tls13-crfg-curves.py")
    print("version: {0}\n".format(version))

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 16
0
def main():
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    # The payload has to be long enough to trigger heap overflow
    # Create max. length application data:
    #   2**14 (max. record size) - 28 ("GET / HTTP/1.0\r\nX-test: " + ending)
    data_length = 2**14 - 28

    # 16 bytes: POLY1305 tag 128 bit
    # Tampering one bit suffices to damage the mac
    fuzzes = [(x, 2**y) for x in range(-16, 0) for y in range(8)]
    for pos, val in fuzzes:
        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256]
        node = node.add_child(ClientHelloGenerator(ciphers))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerKeyExchange())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(
            fuzz_encrypted_message(
                ApplicationDataGenerator(b"GET / HTTP/1.0\r\n" + b'X-test: ' +
                                         data_length * b'A' + b'\r\n\r\n'),
                xors={pos: val}))
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, AlertDescription.bad_record_mac))
        node = node.add_child(ExpectClose())
        conversations["XOR position " + str(pos) + " with " + str(hex(val))] = \
            conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256]
    node = node.add_child(ClientHelloGenerator(ciphers))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        ApplicationDataGenerator(b"GET / HTTP/1.0\r\n" + b'X-test: ' +
                                 data_length * b'A' + b'\r\n\r\n'))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    # allow for multiple application data records in response
    node = node.add_child(ExpectApplicationData())
    loop = node
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    loop.next_sibling = node
    node.next_sibling = ExpectClose()
    conversations["sanity"] = \
        conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    regular_tests = [(k, v) for k, v in conversations.items() if k != 'sanity']
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 17
0
def main():
    """check if incorrect padding is rejected by server"""
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None
    dhe = False

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:n:d", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '-d':
            dhe = True
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    if dhe:
        ext = {}
        groups = [GroupName.secp256r1,
                  GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ext = None
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectCertificateRequest())
    fork = node
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator())

    # handle servers which ask for client certificates
    fork.next_sibling = ExpectServerHelloDone()
    join = ClientKeyExchangeGenerator()
    fork.next_sibling.add_child(join)

    node = node.add_child(join)
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    for pos, val in [
                     (-1, 0x01),
                     (-1, 0xff),
                     (-2, 0x01),
                     (-2, 0xff),
                     (-6, 0x01),
                     (-6, 0xff),
                     (-12, 0x01),
                     (-12, 0xff),
                     (-20, 0x01),
                     (-20, 0xff),
                     # we're generating at least 20 bytes of padding
                     ]:
        conversation = Connect(host, port)
        node = conversation
        if dhe:
            ext = {}
            groups = [GroupName.secp256r1,
                      GroupName.ffdhe2048]
            ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
                .create(groups)
            ext[ExtensionType.signature_algorithms] = \
                SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
            ext[ExtensionType.signature_algorithms_cert] = \
                SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
            ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                       CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                       CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        else:
            ext = None
            ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                       CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectCertificate())
        if dhe:
            node = node.add_child(ExpectServerKeyExchange())
        node = node.add_child(ExpectCertificateRequest())
        fork = node
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(CertificateGenerator())

        # handle servers which ask for client certificates
        fork.next_sibling = ExpectServerHelloDone()
        join = ClientKeyExchangeGenerator()
        fork.next_sibling.add_child(join)

        node = node.add_child(join)
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(fuzz_padding(ApplicationDataGenerator(
                                                        b"GET / HTTP/1.0\n\n"),
                                           xors={pos:val},
                                           min_length=20))
        node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                          AlertDescription.bad_record_mac))
#        node.next_sibling = ExpectClose()
        node = node.add_child(ExpectClose())

        conversations["XOR position " + str(pos) + " with " + str(hex(val))] = \
                conversation

    # zero-fill the padding
    conversation = Connect(host, port)
    node = conversation
    if dhe:
        ext = {}
        groups = [GroupName.secp256r1,
                  GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ext = None
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectCertificateRequest())
    fork = node
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator())

    # handle servers which ask for client certificates
    fork.next_sibling = ExpectServerHelloDone()
    join = ClientKeyExchangeGenerator()
    fork.next_sibling.add_child(join)

    node = node.add_child(join)
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # block size for AES-128 is 16 bytes
    # SHA-1 MAC is 20 bytes long
    # length of "GET / HTTP" is 10 bytes
    # which means the padding will be two bytes - 1 byte of padding and one
    # byte length
    node = node.add_child(fuzz_padding(ApplicationDataGenerator(
                                                    b"GET / HTTP"),
                                       substitutions={0:0}))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.bad_record_mac))
    node = node.add_child(ExpectClose())

    conversations["zero-filled"] = \
            conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items() if
                          k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items() if
                         (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                        bad += 1
                        failed.append(c_name)
                        print("Expected error message: {0}\n"
                            .format(expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Check if incorrect padding is rejected by server")

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2*len(sanity_tests)))
    print("SKIP: {0}".format(len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed ,key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad or xpass:
        sys.exit(1)
Ejemplo n.º 18
0
def main():
    """Check what signature algorithms server advertises"""
    hostname = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None
    cert = None
    private_key = None

    sigalgs = [
        SignatureScheme.ecdsa_secp521r1_sha512,
        SignatureScheme.ecdsa_secp384r1_sha384,
        SignatureScheme.ecdsa_secp256r1_sha256,
        (HashAlgorithm.sha224, SignatureAlgorithm.ecdsa),
        (HashAlgorithm.sha1,
         SignatureAlgorithm.ecdsa), SignatureScheme.rsa_pss_rsae_sha512,
        SignatureScheme.rsa_pss_pss_sha512,
        SignatureScheme.rsa_pss_rsae_sha384,
        SignatureScheme.rsa_pss_pss_sha384,
        SignatureScheme.rsa_pss_rsae_sha256,
        SignatureScheme.rsa_pss_pss_sha256,
        (HashAlgorithm.sha512, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha1, SignatureAlgorithm.rsa)
    ]
    cert_types = [
        ClientCertificateType.rsa_sign, ClientCertificateType.ecdsa_sign
    ]

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:s:k:c:T:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            hostname = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        elif opt == '-s':
            sigalgs = sig_algs_to_ids(arg)
        elif opt == '-T':
            cert_types = client_cert_types_to_ids(arg)
        elif opt == '-k':
            text_key = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_key = str(text_key, 'utf-8')
            private_key = parsePEMKey(text_key, private=True)
        elif opt == '-c':
            text_cert = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_cert = str(text_cert, 'utf-8')
            cert = X509()
            cert.parse(text_cert)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    # sanity check for Client Certificates
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    sigs = [
        SignatureScheme.rsa_pss_rsae_sha256,
        SignatureScheme.rsa_pss_rsae_sha384,
        SignatureScheme.rsa_pss_rsae_sha512,
        SignatureScheme.rsa_pss_pss_sha256, SignatureScheme.rsa_pss_pss_sha384,
        SignatureScheme.rsa_pss_pss_sha512,
        (HashAlgorithm.sha512, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha1, SignatureAlgorithm.rsa),
        (HashAlgorithm.md5, SignatureAlgorithm.rsa)
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create(sigs),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\n\n"))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertDescription.close_notify))
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert()
    node.next_sibling.add_child(ExpectClose())

    conversations["sanity"] = conversation

    if cert and private_key:
        # sanity check for Client Certificates
        conversation = Connect(hostname, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        sigs = [
            SignatureScheme.rsa_pss_rsae_sha256,
            SignatureScheme.rsa_pss_rsae_sha384,
            SignatureScheme.rsa_pss_rsae_sha512,
            SignatureScheme.rsa_pss_pss_sha256,
            SignatureScheme.rsa_pss_pss_sha384,
            SignatureScheme.rsa_pss_pss_sha512,
            (HashAlgorithm.sha512, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha1, SignatureAlgorithm.rsa),
            (HashAlgorithm.md5, SignatureAlgorithm.rsa)
        ]
        ext = {
            ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create(sigs),
            ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        }
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(version=(3, 3)))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(CertificateGenerator(X509CertChain([cert])))
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(CertificateVerifyGenerator(private_key))
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\n\n"))
        node = node.add_child(ExpectApplicationData())
        node = node.add_child(AlertGenerator(AlertDescription.close_notify))
        node = node.add_child(ExpectClose())
        node.next_sibling = ExpectAlert()
        node.next_sibling.add_child(ExpectClose())

        conversations["with certificate"] = conversation

    # verify the advertised hashes
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    sigs = [
        SignatureScheme.rsa_pss_rsae_sha256,
        SignatureScheme.rsa_pss_rsae_sha384,
        SignatureScheme.rsa_pss_rsae_sha512,
        SignatureScheme.rsa_pss_pss_sha256, SignatureScheme.rsa_pss_pss_sha384,
        SignatureScheme.rsa_pss_pss_sha512,
        (HashAlgorithm.sha512, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha1, SignatureAlgorithm.rsa),
        (HashAlgorithm.md5, SignatureAlgorithm.rsa)
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create(sigs),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest(sigalgs))
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\n\n"))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertDescription.close_notify))
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert()
    node.next_sibling.add_child(ExpectClose())

    conversations["check sigalgs in cert request"] = conversation

    # verify the advertised certificate types
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    sigs = [
        SignatureScheme.rsa_pss_rsae_sha256,
        SignatureScheme.rsa_pss_rsae_sha384,
        SignatureScheme.rsa_pss_rsae_sha512,
        SignatureScheme.rsa_pss_pss_sha256, SignatureScheme.rsa_pss_pss_sha384,
        SignatureScheme.rsa_pss_pss_sha512,
        (HashAlgorithm.sha512, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
        (HashAlgorithm.sha1, SignatureAlgorithm.rsa),
        (HashAlgorithm.md5, SignatureAlgorithm.rsa)
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create(sigs),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest(cert_types=cert_types))
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\n\n"))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertDescription.close_notify))
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert()
    node.next_sibling.add_child(ExpectClose())

    conversations["check cert types in cert request"] = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items()
                         if k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items()
                         if (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                    bad += 1
                    failed.append(c_name)
                    print("Expected error message: {0}\n".format(
                        expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Test to verify if server accepts empty certificate messages and")
    print("advertises only expected signature algotithms in Certificate")
    print("Request message\n")

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2 * len(sanity_tests)))
    print("SKIP: {0}".format(
        len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed, key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 19
0
def main():
    host = "localhost"
    port = 4433
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    sigs = [SignatureScheme.rsa_pss_rsae_sha256,
            SignatureScheme.rsa_pss_rsae_sha384,
            SignatureScheme.rsa_pss_rsae_sha512,
            SignatureScheme.rsa_pss_pss_sha256,
            SignatureScheme.rsa_pss_pss_sha384,
            SignatureScheme.rsa_pss_pss_sha512,
            (HashAlgorithm.sha512, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha1, SignatureAlgorithm.rsa)]
    ext = {ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create(sigs),
           ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())
    conversations["sanity"] = conversation

    for sig in [SignatureScheme.rsa_pss_rsae_sha256,
                SignatureScheme.rsa_pss_rsae_sha384,
                SignatureScheme.rsa_pss_rsae_sha512,
                SignatureScheme.rsa_pss_pss_sha256,
                SignatureScheme.rsa_pss_pss_sha384,
                SignatureScheme.rsa_pss_pss_sha512
                ]:
        conversation = Connect(host, port)
        node = conversation
        ext = {ExtensionType.signature_algorithms:
                SignatureAlgorithmsExtension().create([sig]),
               ExtensionType.signature_algorithms_cert:
                SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
        node = node.add_child(ClientHelloGenerator(ciphers,
                                                   extensions=ext))
        node = node.add_child(ExpectServerHello(version=(3, 3)))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerKeyExchange())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(ApplicationDataGenerator(
            bytearray(b"GET / HTTP/1.0\n\n")))
        node = node.add_child(ExpectApplicationData())
        node = node.add_child(AlertGenerator(AlertLevel.warning,
                                             AlertDescription.close_notify))
        node = node.add_child(ExpectAlert())
        node.next_sibling = ExpectClose()
        node = node.add_child(ExpectClose())
        conversations["{0} only"
                      .format(SignatureScheme.toRepr(sig))] = conversation

    # MD5 not selected, even if first
    conversation = Connect(host, port)
    node = conversation
    sigs = [(HashAlgorithm.md5, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha512, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha1, SignatureAlgorithm.rsa),
            SignatureScheme.rsa_pss_pss_sha256,
            SignatureScheme.rsa_pss_pss_sha384,
            SignatureScheme.rsa_pss_pss_sha512]
    ext = {ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create(sigs),
           ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerKeyExchange(valid_sig_algs=sigs[1:]))
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())
    conversations["MD5 first"] = conversation

    conversation = Connect(host, port)
    node = conversation
    sigs = [(HashAlgorithm.md5, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha512, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
            SignatureScheme.rsa_pss_pss_sha256,
            SignatureScheme.rsa_pss_pss_sha384,
            SignatureScheme.rsa_pss_pss_sha512]
    ext = {ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create(sigs),
           ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerKeyExchange(valid_sig_algs=sigs[1:]))
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())
    conversations["MD5 first, no SHA-1"] = conversation

    # sha-1 must not be the only option
    conversation = Connect(host, port)
    node = conversation
    sigs = [(HashAlgorithm.sha512, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
            SignatureScheme.rsa_pss_pss_sha256,
            SignatureScheme.rsa_pss_pss_sha384,
            SignatureScheme.rsa_pss_pss_sha512]
    ext = {ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create(sigs),
           ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())
    conversations["no SHA-1"] = conversation

    # undefined values
    conversation = Connect(host, port)
    node = conversation
    sigs = [(HashAlgorithm.sha256, 24),  # undefined signature algorithm
            (24, SignatureAlgorithm.rsa),  # undefined hash algorithm
            (10, 10),  # undefined pair
            (9, 24),  # undefined pair
            (0xff, 0xff),  # undefined pair
            (HashAlgorithm.sha512, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha384, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha256, SignatureAlgorithm.rsa),
            (HashAlgorithm.sha224, SignatureAlgorithm.rsa),
            SignatureScheme.rsa_pss_pss_sha256,
            SignatureScheme.rsa_pss_pss_sha384,
            SignatureScheme.rsa_pss_pss_sha512]
    ext = {ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create(sigs),
           ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerKeyExchange(valid_sig_algs=sigs[5:]))
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())
    conversations["extra sigalgs"] = conversation

    conversation = Connect(host, port)
    node = conversation
    sigs = [(HashAlgorithm.sha256, 24),  # undefined signature algorithm
            (24, SignatureAlgorithm.rsa),  # undefined hash algorithm
            (10, 10),  # undefined pair
            (9, 24),  # undefined pair
            (0xff, 0xff)  # undefined pair
           ]
    ext = {ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create(sigs),
           ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.handshake_failure))
    node = node.add_child(ExpectClose())
    conversations["only undefined sigalgs"] = conversation

    # invalid formatting
    conversation = Connect(host, port)
    node = conversation
    ext = {ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create([]),
           ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node = node.add_child(ExpectClose())
    conversations["empty sigalgs"] = conversation

    # invalid length
    conversation = Connect(host, port)
    node = conversation
    ext = OrderedDict()
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    sigs = [(HashAlgorithm.sha256, SignatureAlgorithm.rsa)]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sigs)
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    msg = ClientHelloGenerator(ciphers, extensions=ext)
    node = node.add_child(fuzz_message(msg, xors={-3: 1}))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node = node.add_child(ExpectClose())
    conversations["fuzz length of sigalgs"] = conversation

    # invalid length
    conversation = Connect(host, port)
    node = conversation
    sigs = [(HashAlgorithm.sha256, SignatureAlgorithm.rsa)]
    ext = OrderedDict()
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    ext[ExtensionType.signature_algorithms] =  SignatureAlgorithmsExtension()\
        .create(sigs)
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    msg = ClientHelloGenerator(ciphers, extensions=ext)
    node = node.add_child(fuzz_message(msg, substitutions={-3: 4}))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node = node.add_child(ExpectClose())
    conversations["truncate sigalgs extension"] = conversation

    # odd length
    conversation = Connect(host, port)
    node = conversation
    ext = {ExtensionType.signature_algorithms:
            TLSExtension(extType=ExtensionType.signature_algorithms)
            .create(bytearray(b'\x00\x03'  # length of array
                              b'\x04\x01'  # sha256 + rsa
                              b'\x04')),  # the odd byte
           ExtensionType.signature_algorithms_cert:
           SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    msg = ClientHelloGenerator(ciphers, extensions=ext)
    node = node.add_child(msg)
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node = node.add_child(ExpectClose())
    conversations["odd length of sigalgs"] = conversation

    # padded extension
    conversation = Connect(host, port)
    node = conversation
    ext = {ExtensionType.signature_algorithms:
            TLSExtension(extType=ExtensionType.signature_algorithms)
            .create(bytearray(b'\x00\x04'  # length of array
                              b'\x02\x01'  # sha1+rsa
                              b'\x04\x01'  # sha256 + rsa
                              b'\x04\x03')),  # extra bytes
           ExtensionType.signature_algorithms_cert:
           SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    msg = ClientHelloGenerator(ciphers, extensions=ext)
    node = node.add_child(msg)
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node = node.add_child(ExpectClose())
    conversations["padded sigalgs"] = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    regular_tests = [(k, v) for k, v in conversations.items() if k != 'sanity']
    sampled_tests = sample(regular_tests, len(regular_tests))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS: expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                        bad += 1
                        failed.append(c_name)
                        print("Expected error message: {0}\n"
                            .format(expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Check if server correctly selects signature algorithm for SKE")
    print("Test to verify that Server Key Exchange is signed with safe")
    print("and correct algorithms.")
    print("Note that test expects server with support for both rsa_pss_rsae_*")
    print("and rsa_pss_pss_* signatures, in other words, one with both")
    print("rsaEncryption key in one certificate and rsasse-pss in second")
    print("certificate. If there's only one certificate installed in server,")
    print("some of the tests that advertise just one algorithm may need to be")
    print("disabled.")

    print("version: {0}\n".format(version))

    print("Test end")
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2*len(sanity_tests)))
    print("SKIP: {0}".format(len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed ,key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 20
0
def main():
    host = "localhost"
    port = 4433
    run_exclude = set()

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["only http/1.1"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.')])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.no_application_protocol))
    node.add_child(ExpectClose())
    conversations["only http/1."] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.X')])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.no_application_protocol))
    node.add_child(ExpectClose())
    conversations["only http/1.X"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.'),
                                                       bytearray(b'http/1.1')])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["http/1. and http/1.1"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'')])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node.add_child(ExpectClose())
    conversations["empty element"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create([])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node.add_child(ExpectClose())
    conversations["empty list"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: TLSExtension(extType=ExtensionType.alpn).create(bytearray())}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node.add_child(ExpectClose())
    conversations["empty extension"] = conversation

    # underflow length of "protocol_name_list" test
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1'),
                                                       bytearray(b'http/2')])}
    msg = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    # -17 is position of second byte in 2 byte long length of "protocol_name_list"
    # setting it to value of 9 (bytes) will hide the second item in the "protocol_name_list"    
    node = node.add_child(fuzz_message(msg, substitutions={-17: 9}))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node = node.add_child(ExpectClose())
    conversations["underflow length of protocol_name_list"] = conversation

    # overflow length of "protocol_name_list" test
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1'),
                                                       bytearray(b'http/2')])}
    msg = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    # -17 is position of second byte in 2 byte long length of "protocol_name_list"
    # setting it to value of 18 (bytes) will raise the length value for 2 more bytes    
    node = node.add_child(fuzz_message(msg, substitutions={-17: 18}))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node = node.add_child(ExpectClose())
    conversations["overflow length of protocol_name_list"] = conversation

    # overflow length of last item in "protocol_name_list" test
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1'),
                                                       bytearray(b'http/2')])}
    msg = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    # -7 is position of a length (1 byte long) for the last item in "protocol_name_list"
    # setting it to value of 8 (bytes) will raise the length value for 2 more bytes  
    node = node.add_child(fuzz_message(msg, substitutions={-7: 8}))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.decode_error))
    node = node.add_child(ExpectClose())
    conversations["overflow length of last item"] = conversation

    # renegotiation with protocol change
    conversation = Connect(host, port)
    node = conversation

    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/2')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, session_id=bytearray(0), extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/2')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())

    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["renegotiation with protocol change"] = conversation

    # renegotiation without protocol change
    conversation = Connect(host, port)
    node = conversation

    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, session_id=bytearray(0), extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())

    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["renegotiation without protocol change"] = conversation

    # renegotiation 2nd handshake alpn
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, session_id=bytearray(0), extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())

    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["renegotiation 2nd handshake alpn"] = conversation

    # resumption without alpn change

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    close = ExpectClose()
    node.next_sibling = close
    node = node.add_child(ExpectClose())
    node = node.add_child(Close())
    node = node.add_child(Connect(host, port))
    close.add_child(node)

    node = node.add_child(ResetHandshakeHashes())
    node = node.add_child(ResetRenegotiationInfo())
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info:None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext, resume=True))
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())

    conversations["resumption without alpn change"] = conversation

    # resumption with alpn change

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    close = ExpectClose()
    node.next_sibling = close
    node = node.add_child(ExpectClose())
    node = node.add_child(Close())
    node = node.add_child(Connect(host, port))
    close.add_child(node)

    node = node.add_child(ResetHandshakeHashes())
    node = node.add_child(ResetRenegotiationInfo())
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'h2')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info:None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'h2')])}
    node = node.add_child(ExpectServerHello(extensions=ext, resume=True))
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())

    conversations["resumption with alpn change"] = conversation

    # resumption with alpn 

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    close = ExpectClose()
    node.next_sibling = close
    node = node.add_child(ExpectClose())
    node = node.add_child(Close())
    node = node.add_child(Connect(host, port))
    close.add_child(node)

    node = node.add_child(ResetHandshakeHashes())
    node = node.add_child(ResetRenegotiationInfo())
    ext = {ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')]),
	   ExtensionType.renegotiation_info:None}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info:None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext, resume=True))
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    node = node.add_child(ExpectClose())

    conversations["resumption with alpn"] = conversation

    # 16269 byte long array and 255 byte long items test
    # Client Hello longer than 2^14 bytes issue
    conversation = Connect(host, port)
    node = conversation
    proto = bytearray(b"A" * 255)
    lista = []
    lista.append(proto)
    # 63 items 255 bytes long + 1 item 195 bytes long + 1 item 8 byte long (http/1.1)
    for p in range(1,63):
        lista.append(proto)
    # 195 + 1 byte to reproduce the issue 
    lista.append(bytearray(b'B' * 196))
    lista.append(bytearray(b'http/1.1'))
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.alpn: ALPNExtension().create(lista)}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None,
           ExtensionType.alpn: ALPNExtension().create([bytearray(b'http/1.1')])}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["16269 byte long array"] = conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    regular_tests = [(k, v) for k, v in conversations.items() if k != 'sanity']
    shuffled_tests = sample(regular_tests, len(regular_tests))
    ordered_tests = chain(sanity_tests, shuffled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 21
0
def main():
    """Test version numbers outside used range"""
    conversations = {}

    conversation = Connect("localhost", 4433, version=(3, 0))
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions={ExtensionType.renegotiation_info:None},
                                               version=(254, 254)))
    node = node.add_child(ExpectServerHello(version=(3, 3),
                                            extensions={ExtensionType.renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["very high version (254, 254)"] = conversation

    conversation = Connect("localhost", 4433, version=(3, 0))
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions={ExtensionType.renegotiation_info:None},
                                               version=(0, 0)))
    node = node.add_child(ExpectAlert(description=AlertDescription.protocol_version))
    node = node.add_child(ExpectClose())

    conversations["very low version (0, 0)"] = conversation

    conversation = Connect("localhost", 4433, version=(3, 0))
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions={ExtensionType.renegotiation_info:None},
                                               version=(3, 3)))
    node = node.add_child(ExpectServerHello(version=(3, 3),
                                            extensions={ExtensionType.renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["low record version (3, 0), TLS1.2 (sanity check)"] = conversation

    conversation = Connect("localhost", 4433, version=(3, 254))
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions={ExtensionType.renegotiation_info:None},
                                               version=(3, 3)))
    node = node.add_child(ExpectServerHello(version=(3, 3),
                                            extensions={ExtensionType.renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["high record version (3, 254), TLS1.2"] = conversation

    conversation = Connect("localhost", 4433, version=(3, 254))
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions={ExtensionType.renegotiation_info:None},
                                               version=(254, 254)))
    node = node.add_child(ExpectServerHello(version=(3, 3),
                                            extensions={ExtensionType.renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["high record version (3, 254), very high protocol version (254, 254)"] = conversation

    good = 0
    bad = 0

    for conversation_name, conversation in conversations.items():
        print("{0} ...".format(conversation_name))

        runner = Runner(conversation)

        res = True
        try:
            runner.run()
        except:
            print("Error while processing")
            print(traceback.format_exc())
            print("")
            res = False

        if res:
            good+=1
            print("OK\n")
        else:
            bad+=1

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))

    if bad > 0:
        sys.exit(1)
def main():

    #
    # Test if client hello with garbage at the end gets rejected
    #

    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    # sanity check
    conversation = Connect(host, port)
    node = conversation
    ext = {ExtensionType.renegotiation_info: None}
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    # test if server doesn't interpret extensions past extensions length
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(pad_handshake(ClientHelloGenerator(ciphers,
                                               extensions={}),
                                        # empty renegotiation info
                                        pad=bytearray(b'\xff\x01\x00\x01\x00')))
    # responding to a malformed client hello is not correct, but tested below
    node = node.add_child(ExpectServerHello(extensions={}))
    node.next_sibling = ExpectAlert(AlertLevel.fatal,
                                    AlertDescription.decode_error)
    node.next_sibling.add_child(ExpectClose())

    conversations["extension past extensions"] = conversation


    for name, pad_len, pad_byte in [
                                ("small pad", 1, 0),
                                ("small pad", 2, 0),
                                ("small pad", 3, 0),
                                ("small pad", 1, 0xff),
                                ("small pad", 2, 0xff),
                                ("small pad", 3, 0xff),
                                ("medium pad", 256, 0),
                                ("large pad", 4096, 0),
                                ("big pad", 2**16, 0),
                                ("huge pad", 2**17+512, 0),
                                ("max pad", 2**24-1-48, 0),
                                ("small truncate", -1, 0),
                                ("small truncate", -2, 0),
                                ("small truncate", -3, 0),
                                ("small truncate", -4, 0),
                                ("small truncate", -5, 0),
                                ("small truncate", -6, 0),
                                # 7 bytes truncates whole 'extensions' creating
                                # a valid message
                                #("small truncate", -7, 0),
                                ("hello truncate", -8, 0),
                                ("hello truncate", -9, 0),
                                ("hello truncate", -10, 0),
                                ("hello truncate", -11, 0),
                                ("hello truncate", -12, 0),
                                ("hello truncate", -13, 0),
                                ("hello truncate", -32, 0),
                                ("hello truncate", -39, 0),
                                # truncate so that only one byte...
                                ("hello truncate", -47, 0),
                                # ...or no message remains
                                ("full message truncate", -48, 0)
                                ]:

        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]

        msg = pad_handshake(ClientHelloGenerator(ciphers,
                                                 extensions={ExtensionType.renegotiation_info: None}),
                            pad_len, pad_byte)
        fragments = []
        node = node.add_child(split_message(msg, fragments, 2**14))
        node = node.add_child(ExpectNoMessage())
        node.next_sibling = ExpectAlert(AlertLevel.fatal,
                                         AlertDescription.decode_error)
        node.next_sibling.add_child(ExpectClose())
        node = node.add_child(TCPBufferingEnable())
        node = node.add_child(FlushMessageList(fragments))
        node = node.add_child(TCPBufferingDisable())
        node = node.add_child(TCPBufferingFlush())
        node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                          AlertDescription.decode_error))
        node.add_child(ExpectClose())

        if "pad" in name:
            conversations[name + ": " + str(pad_len) + " of \"" + str(pad_byte) +
                          "\" byte padding"] = conversation
        else:
            conversations[name + ": " + str(-pad_len) +
                          " of bytes truncated"] = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    regular_tests = [(k, v) for k, v in conversations.items() if k != 'sanity']
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS: expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                        bad += 1
                        failed.append(c_name)
                        print("Expected error message: {0}\n"
                            .format(expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Check if ClientHello length checking is correct in server")
    print("version: {0}\n".format(version))

    print("Test end")
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2*len(sanity_tests)))
    print("SKIP: {0}".format(len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed ,key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad > 0:
        sys.exit(1)
def main():
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    ext_exclude = set()
    exp_sup_groups = False

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:", ["help", "exc=", "supgroup"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--exc':
            ext_exclude.add(int(arg))
        elif opt == '--supgroup':
            exp_sup_groups = True
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    expect_exts_sh = {
        ExtensionType.key_share: None,
        ExtensionType.supported_versions: None
    }
    expect_exts_ee = {}
    if exp_sup_groups:
        expect_exts_ee[ExtensionType.supported_groups] = None

    unassigned_ext_id = []
    unassigned_ext_id.extend(range(2, 5))
    unassigned_ext_id.extend(range(6, 10))
    unassigned_ext_id.extend([11, 12, 17])
    unassigned_ext_id.extend(range(22, 28))
    unassigned_ext_id.extend(range(29, 41))
    unassigned_ext_id.extend([46])
    unassigned_ext_id.extend(range(52, 65536))

    # Exclude extensions from a list of unassigned ones
    unassigned_ext_id = [
        ext for ext in unassigned_ext_id if ext not in ext_exclude
    ]

    chunk_size = 4096
    for ext_chunk in (unassigned_ext_id[j:j + chunk_size]
                      for j in range(0, len(unassigned_ext_id), chunk_size)):
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_AES_128_GCM_SHA256,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = OrderedDict()
        for ext_id in ext_chunk:
            ext[ext_id] = AutoEmptyExtension()
        if ExtensionType.renegotiation_info in ext:
            ext[ExtensionType.renegotiation_info] = None

        groups = [GroupName.secp256r1]
        key_shares = []
        for group in groups:
            key_shares.append(key_share_gen(group))
        ext[ExtensionType.key_share] = ClientKeyShareExtension().create(
            key_shares)
        ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
            .create([TLS_1_3_DRAFT])
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        sig_algs = [
            SignatureScheme.rsa_pss_rsae_sha256,
            SignatureScheme.rsa_pss_pss_sha256
        ]
        ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
            .create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
            .create(RSA_SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(extensions=expect_exts_sh))
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(
            ExpectEncryptedExtensions(extensions=expect_exts_ee))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateVerify())
        node = node.add_child(ExpectFinished())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(
            ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

        # This message is optional and may show up 0 to many times
        cycle = ExpectNewSessionTicket()
        node = node.add_child(cycle)
        node.add_child(cycle)

        node.next_sibling = ExpectApplicationData()
        node = node.next_sibling.add_child(
            AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

        node = node.add_child(ExpectAlert())
        node.next_sibling = ExpectClose()
        conversations[
            "empty unassigned extensions, ids in range from {0} to {1}".format(
                ext_chunk[0], ext_chunk[-1])] = conversation

    chunk_size = 1024
    for ext_chunk in (unassigned_ext_id[j:j + chunk_size]
                      for j in range(0, len(unassigned_ext_id), chunk_size)):
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_AES_128_GCM_SHA256,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        random_payload = structured_random_iter(max_length=2**6,
                                                count=len(ext_chunk))
        ext = OrderedDict()
        for ext_id in ext_chunk:
            ext[ext_id] = TLSExtension(extType=ext_id).create(
                next(random_payload).data)
        if ExtensionType.renegotiation_info in ext:
            ext[ExtensionType.renegotiation_info] = None

        groups = [GroupName.secp256r1]
        key_shares = []
        for group in groups:
            key_shares.append(key_share_gen(group))
        ext[ExtensionType.key_share] = ClientKeyShareExtension().create(
            key_shares)
        ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
            .create([TLS_1_3_DRAFT])
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
            .create(groups)
        sig_algs = [
            SignatureScheme.rsa_pss_rsae_sha256,
            SignatureScheme.rsa_pss_pss_sha256
        ]
        ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
            .create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
            .create(RSA_SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(extensions=expect_exts_sh))
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(
            ExpectEncryptedExtensions(extensions=expect_exts_ee))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateVerify())
        node = node.add_child(ExpectFinished())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(
            ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

        # This message is optional and may show up 0 to many times
        cycle = ExpectNewSessionTicket()
        node = node.add_child(cycle)
        node.add_child(cycle)

        node.next_sibling = ExpectApplicationData()
        node = node.next_sibling.add_child(
            AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

        node = node.add_child(ExpectAlert())
        node.next_sibling = ExpectClose()
        conversations[
            "unassigned extensions with random payload, ids in range from {0} to {1}"
            .format(ext_chunk[0], ext_chunk[-1])] = conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throught
    sanity_test = ('sanity', conversations['sanity'])
    ordered_tests = chain([sanity_test],
                          islice(
                              filter(lambda x: x[0] != 'sanity',
                                     conversations.items()), num_limit),
                          [sanity_test])

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except Exception:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Test with large number of unassigned extensions in TLS 1.3")
    print("Verify that server does not reply to any of these extensions")
    print("and establish regular session.\n")
    print("version: {0}\n".format(version))

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 24
0
def main():
    #
    # Test if server can handle handshake protocol messages fragmented over
    # multiple records
    #

    host = "localhost"
    port = 4433
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {21: TLSExtension().create(21, bytearray(10))}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["sanity"] = conversation

    # 2**14-49 - max size of Client Hello for OpenSSL
    # 2**16-5 - max size of extensions in TLS
    # 2**14-52 - min size of extension that will cause the message to be
    #            fragmented over multiple records
    #
    # note: None for record_len will cause the limit to be set to protocol
    # maximum - 2**14

    for name, ext_len, record_len in [
        ("small hello", 20, None), ("medium hello", 1024, None),
        ("medium hello, pow2 fragmentation", 1024, 127),
        ("medium hello, pow2 fragmentation", 1024, 128),
        ("medium hello, pow2 fragmentation", 1024, 128),
        ("medium hello, pow2 fragmentation", 1024, 255),
        ("medium hello, pow2 fragmentation", 1024, 256),
        ("medium hello, pow2 fragmentation", 1024, 257),
        ("big, non fragmented", 2**12, None),
        ("big, needs fragmentation", 2**14 - 49, None),
        ("big, needs fragmentation", 2**14 - 48, None),
        ("big, needs fragmentation", 2**15, None),
        ("maximum size", 2**16 - 5, None),
        ("small, reasonable fragmentation", 20, 1024),
        ("medium, reasonable fragmentation", 1024, 1024),
        ("big, reasonable fragmentation", 2**12, 1024),
        ("small, excessive fragmentation", 20, 20),
        ("medium, excessive fragmentation", 1024, 20),
        ("big, excessive fragmentation", 2**12, 20),
        ("small, maximum fragmentation", 20, 1),
        ("medium, maximum fragmentation", 1024, 1),
        ("maximum size without fragmentation", 2**14 - 53, None)
    ]:

        conversation = Connect(host, port)
        node = conversation
        node = node.add_child(SetMaxRecordSize(record_len))
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {21: TLSExtension().create(21, bytearray(ext_len))}
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(
            ExpectServerHello(
                extensions={ExtensionType.renegotiation_info: None}))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(
            ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\n\n")))
        node = node.add_child(ExpectApplicationData())
        # XXX RFCs do NOT consider Alerts special with regards to fragmentation
        node = node.add_child(SetMaxRecordSize(2))
        node = node.add_child(
            AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
        node = node.add_child(ExpectAlert())
        node.next_sibling = ExpectClose()

        if record_len is None:
            record_len = "max"
        conversations[name + ": " + str(record_len) + " fragment - " +
                      str(ext_len) + "B extension"] = conversation

    # check if records bigger than TLSPlaintext limit are rejected
    padding_extension = TLSExtension().create(21, bytearray(2**14 - 52))

    conversation = Connect(host, port)
    node = conversation
    node = node.add_child(SetMaxRecordSize(2**16 - 1))
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    node = node.add_child(
        ClientHelloGenerator(ciphers, extensions={21: padding_extension}))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["non fragmented, over fragmentation limit: " +
                  str(2**16 - 1) + " fragment - " + str(2**14 - 52) +
                  "B extension"] = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    regular_tests = [(k, v) for k, v in conversations.items() if k != 'sanity']
    sampled_tests = sample(regular_tests, len(regular_tests))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS: expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                    bad += 1
                    failed.append(c_name)
                    print("Expected error message: {0}\n".format(
                        expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Test end")
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2 * len(sanity_tests)))
    print("SKIP: {0}".format(
        len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed, key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 25
0
def main():
    """check if obsolete signature algorithm is rejected by server"""
    conversations = {}
    hostname = "localhost"
    port = 4433

    argv = sys.argv[1:]
    if len(argv) != 4:
        raise ValueError("You need to specify key (-k file.pem) and "
                         "certificate (-c file.pem)")
    opts, argv = getopt.getopt(argv, "k:c:")

    for opt, arg in opts:
        if opt == '-k':
            text_key = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_key = str(text_key, 'utf-8')
            private_key = parsePEMKey(text_key, private=True)
        if opt == '-c':
            text_cert = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_cert = str(text_cert, 'utf-8')
            cert = X509()
            cert.parse(text_cert)

    if not private_key:
        raise ValueError("Specify private key file using -k")
    if not cert:
        raise ValueError("Specify certificate file using -c")

    # sanity check for Client Certificates
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.signature_algorithms :
           SignatureAlgorithmsExtension().create([
             (getattr(HashAlgorithm, x),
              SignatureAlgorithm.rsa) for x in ['sha512', 'sha384', 'sha256',
                                                'sha224', 'sha1', 'md5']])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator(X509CertChain([cert])))
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(CertificateVerifyGenerator(private_key))
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\n\n"))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertDescription.close_notify))
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert()
    node.next_sibling.add_child(ExpectClose())

    conversations["Sanity check"] = conversation

    # force MD5 signature on CertificateVerify
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.signature_algorithms :
           SignatureAlgorithmsExtension().create([
             (getattr(HashAlgorithm, x),
              SignatureAlgorithm.rsa) for x in ['sha512', 'sha384', 'sha256',
                                                'sha224', 'sha1', 'md5']])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator(X509CertChain([cert])))
    node = node.add_child(ClientKeyExchangeGenerator())
    sig_type = (HashAlgorithm.md5, SignatureAlgorithm.rsa)
    node = node.add_child(CertificateVerifyGenerator(private_key,
                                                     msg_alg=sig_type
                                                     ))
    # the other side can close connection right away, add options to handle it
    node.next_sibling = ExpectClose()
    node = node.add_child(ChangeCipherSpecGenerator())
    node.next_sibling = ExpectClose()
    node = node.add_child(FinishedGenerator())
    node.next_sibling = ExpectClose()
    # we expect closure or Alert and then closure of socket
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert()
    node.next_sibling.add_child(ExpectClose())

    conversations["MD5 forced"] = conversation

    # place a real MD5 signature in CertificateVerify, but indicate a normal
    # (requested by server) in the outside structure - tests if the server
    # parses the HashInfo structure from signature or if it compares it with
    # expected value
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.signature_algorithms :
           SignatureAlgorithmsExtension().create([
             (getattr(HashAlgorithm, x),
              SignatureAlgorithm.rsa) for x in ['sha512', 'sha384', 'sha256',
                                                'sha224', 'sha1', 'md5']])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator(X509CertChain([cert])))
    node = node.add_child(ClientKeyExchangeGenerator())
    sig_type = (HashAlgorithm.md5, SignatureAlgorithm.rsa)
    node = node.add_child(CertificateVerifyGenerator(private_key,
                                                     sig_alg=sig_type
                                                     ))
    # the other side can close connection right away, add options to handle it
    node.next_sibling = ExpectClose()
    node = node.add_child(ChangeCipherSpecGenerator())
    node.next_sibling = ExpectClose()
    node = node.add_child(FinishedGenerator())
    node.next_sibling = ExpectClose()
    # we expect closure or Alert and then closure of socket
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert()
    node.next_sibling.add_child(ExpectClose())

    conversations["MD5 forced in HashInfo"] = conversation

    # make invalid signature in CertificateVerify (TLSv1.1 style)
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ext = {ExtensionType.signature_algorithms :
           SignatureAlgorithmsExtension().create([
             (getattr(HashAlgorithm, x),
              SignatureAlgorithm.rsa) for x in ['sha512', 'sha384', 'sha256',
                                                'sha224', 'sha1', 'md5']])}
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator(X509CertChain([cert])))
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(CertificateVerifyGenerator(private_key,
                                                     sig_version=(3, 2)
                                                     ))
    # the other side can close connection right away, add options to handle it
    node.next_sibling = ExpectClose()
    node = node.add_child(ChangeCipherSpecGenerator())
    node.next_sibling = ExpectClose()
    node = node.add_child(FinishedGenerator())
    node.next_sibling = ExpectClose()
    # we expect closure or Alert and then closure of socket
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert()
    node.next_sibling.add_child(ExpectClose())

    conversations["TLSv1.1 signature in TLSv1.2 Certificate Verify"] = \
            conversation

    # run the conversation
    good = 0
    bad = 0

    print("MD5 CertificateVerify (CVE-2015-7575 aka SLOTH) test version 5")

    for conversation_name in conversations:
        conversation = conversations[conversation_name]

        print(conversation_name + "...")

        runner = Runner(conversation)

        res = True
        #because we don't want to abort the testing and we are reporting
        #the errors to the user, using a bare except is OK
        #pylint: disable=bare-except
        try:
            runner.run()
        except:
            print("Error while processing")
            print(traceback.format_exc())
            res = False
        #pylint: enable=bare-except

        if res:
            good+=1
            print("OK")
        else:
            bad+=1

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 26
0
def main():
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([(3, 3), TLS_1_3_DRAFT])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectNewSessionTicket())
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throught
    sanity_test = ('sanity', conversations['sanity'])
    ordered_tests = chain([sanity_test],
                          islice(
                              filter(lambda x: x[0] != 'sanity',
                                     conversations.items()), num_limit),
                          [sanity_test])

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except Exception:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Basic communication test with TLS 1.3 server")
    print("Check if communication with typical group and cipher works with")
    print("the TLS 1.3 server.\n")
    print("version: {0}\n".format(version))

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 27
0
def main():
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    dhe = False

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:n:d", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-d':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n\r\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    # renegotiation
    conversation = Connect(host, port)
    node = conversation

    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # send GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n")))
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b'\r\n')))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["secure renegotiation with GET after 2nd handshake"] = conversation

    # renegotiation
    conversation = Connect(host, port)
    node = conversation

    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # send incomplete GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n")))
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.renegotiation_info:None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # finish the GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b'\r\n')))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["secure renegotiation with incomplete GET"] = conversation

    # insecure renegotiation
    conversation = Connect(host, port)
    node = conversation

    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # send GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n")))
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b'\r\n')))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["insecure (legacy) renegotiation with GET after 2nd handshake"] = conversation

    # insecure renegotiation
    conversation = Connect(host, port)
    node = conversation

    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # send incomplete GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET /?Renegotiation_Test=tlsfuzzer HTTP/1.0\r\n")))
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = None
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext = {ExtensionType.supported_groups:
               SupportedGroupsExtension().create(groups),
               ExtensionType.signature_algorithms:
               SignatureAlgorithmsExtension().create(RSA_SIG_ALL),
               ExtensionType.signature_algorithms_cert:
               SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)}
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # finish the GET request
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b'\r\n')))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["insecure (legacy) renegotiation with incomplete GET"] = conversation

    # sending both SCSV and renegotiation_info: cold, then renegotiated
    conversation = Connect(host, port)
    node = conversation

    # Sending both is NOT RECOMMENDED, though valid, for the first handshake...
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # ... but not for the second handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               session_id=bytearray(0),
                                               extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.handshake_failure))
    node = node.add_child(ExpectClose())
    conversations["sending both SCSV and renegotiation_info in renegotiated handshake"] = conversation

    # sending both SCSV and renegotiation_info: cold, then renegotiated+resumed
    conversation = Connect(host, port)
    node = conversation

    # Sending both is NOT RECOMMENDED, though valid, for the first handshake...
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = {ExtensionType.renegotiation_info: None}
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectCertificate())
    if dhe:
        node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # ... but not for the second handshake
    node = node.add_child(ResetHandshakeHashes())
    ext = {ExtensionType.renegotiation_info: None}
    if dhe:
        groups = [GroupName.secp256r1, GroupName.ffdhe2048]
        ext[ExtensionType.supported_groups] = SupportedGroupsExtension() \
            .create(groups)
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(RSA_SIG_ALL)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ciphers = [CipherSuite.TLS_ECDHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    else:
        ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                   CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      AlertDescription.handshake_failure))
    node = node.add_child(ExpectClose())
    conversations["sending both SCSV and renegotiation_info in renegotiation+resumption"] = conversation

    # run the conversation
    good = 0
    bad = 0
    failed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    regular_tests = [(k, v) for k, v in conversations.items() if k != 'sanity']
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        try:
            runner.run()
        except Exception:
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK\n")
        else:
            bad += 1
            failed.append(c_name)

    print("Check if the server supports insecure (legacy) renegotiation")
    print("version: {0}\n".format(version))

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))
    failed_sorted = sorted(failed, key=natural_sort_keys)
    print("  {0}".format('\n  '.join(repr(i) for i in failed_sorted)))

    if bad > 0:
        sys.exit(1)
def main():
    """Test if server supports the RFC 7919 key exchange"""
    host = "localhost"
    port = 4433
    num_limit = None
    fatal_alert = "insufficient_security"
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None
    sig_algs = None  # `sigalgs` w/o underscore is used for client certificates

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:S:e:x:X:n:", ["help", "alert="])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-S':
            sig_algs = sig_algs_to_ids(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--alert':
            fatal_alert = arg
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ext = {ExtensionType.renegotiation_info: None}
    ciphers = [CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    if sig_algs:
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(extensions={ExtensionType.
                                                     renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert(AlertLevel.warning,
                                      AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    node.add_child(ExpectClose())

    conversations["sanity"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.renegotiation_info: None}
    if sig_algs:
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(cipher=CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA,
                                            extensions={ExtensionType.
                                                     renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert(AlertLevel.warning,
                                      AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    node.add_child(ExpectClose())

    conversations["Check if DHE preferred"] = conversation

    for group in GroupName.allFF:
        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
        ext = {ExtensionType.renegotiation_info: None}
        ext[ExtensionType.supported_groups] = \
                SupportedGroupsExtension().create([group])
        if sig_algs:
            ext[ExtensionType.signature_algorithms] = \
                SignatureAlgorithmsExtension().create(sig_algs)
            ext[ExtensionType.signature_algorithms_cert] = \
                SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(extensions={ExtensionType.
            renegotiation_info:None}))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerKeyExchange(valid_groups=[group]))
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(ApplicationDataGenerator(
            bytearray(b"GET / HTTP/1.0\n\n")))
        node = node.add_child(ExpectApplicationData())
        node = node.add_child(AlertGenerator(AlertLevel.warning,
                                             AlertDescription.close_notify))
        node = node.add_child(ExpectAlert(AlertLevel.warning,
                                          AlertDescription.close_notify))
        node.next_sibling = ExpectClose()
        node.add_child(ExpectClose())

        conversations["{0} negotiation".format(GroupName.toStr(group))] = \
                conversation

        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
        ext = {ExtensionType.renegotiation_info: None}
        ext[ExtensionType.supported_groups] = \
                SupportedGroupsExtension().create([511, group])
        if sig_algs:
            ext[ExtensionType.signature_algorithms] = \
                SignatureAlgorithmsExtension().create(sig_algs)
            ext[ExtensionType.signature_algorithms_cert] = \
                SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(extensions={ExtensionType.
            renegotiation_info:None}))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerKeyExchange(valid_groups=[group]))
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(ApplicationDataGenerator(
            bytearray(b"GET / HTTP/1.0\n\n")))
        node = node.add_child(ExpectApplicationData())
        node = node.add_child(AlertGenerator(AlertLevel.warning,
                                             AlertDescription.close_notify))
        node = node.add_child(ExpectAlert(AlertLevel.warning,
                                          AlertDescription.close_notify))
        node.next_sibling = ExpectClose()
        node.add_child(ExpectClose())

        conversations["unassigned tolerance, {0} negotiation".format(GroupName.toStr(group))] = \
                conversation

        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
        ext = {ExtensionType.renegotiation_info: None}
        ext[ExtensionType.supported_groups] = \
                SupportedGroupsExtension().create([GroupName.secp256r1, group])
        if sig_algs:
            ext[ExtensionType.signature_algorithms] = \
                SignatureAlgorithmsExtension().create(sig_algs)
            ext[ExtensionType.signature_algorithms_cert] = \
                SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(extensions={ExtensionType.
            renegotiation_info:None}))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerKeyExchange(valid_groups=[group]))
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(ApplicationDataGenerator(
            bytearray(b"GET / HTTP/1.0\n\n")))
        node = node.add_child(ExpectApplicationData())
        node = node.add_child(AlertGenerator(AlertLevel.warning,
                                             AlertDescription.close_notify))
        node = node.add_child(ExpectAlert(AlertLevel.warning,
                                          AlertDescription.close_notify))
        node.next_sibling = ExpectClose()
        node.add_child(ExpectClose())

        conversations["tolerate ECC curve in groups without ECC cipher, "
                      "negotiate {0} ".format(GroupName.toStr(group))] = \
                conversation

        for group2 in GroupName.allFF:
            if group == group2:
                continue
            conversation = Connect(host, port)
            node = conversation
            ciphers = [CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
            ext = {ExtensionType.renegotiation_info: None}
            ext[ExtensionType.supported_groups] = \
                    SupportedGroupsExtension().create([511, group, group2])
            if sig_algs:
                ext[ExtensionType.signature_algorithms] = \
                    SignatureAlgorithmsExtension().create(sig_algs)
                ext[ExtensionType.signature_algorithms_cert] = \
                    SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
            node = node.add_child(ClientHelloGenerator(ciphers,
                                                       extensions=ext))
            node = node.add_child(ExpectServerHello(extensions={ExtensionType.
                renegotiation_info:None}))
            node = node.add_child(ExpectCertificate())
            node = node.add_child(ExpectServerKeyExchange(
                valid_groups=[group, group2]))
            node = node.add_child(ExpectServerHelloDone())
            node = node.add_child(ClientKeyExchangeGenerator())
            node = node.add_child(ChangeCipherSpecGenerator())
            node = node.add_child(FinishedGenerator())
            node = node.add_child(ExpectChangeCipherSpec())
            node = node.add_child(ExpectFinished())
            node = node.add_child(ApplicationDataGenerator(
                bytearray(b"GET / HTTP/1.0\n\n")))
            node = node.add_child(ExpectApplicationData())
            node = node.add_child(AlertGenerator(AlertLevel.warning,
                                                 AlertDescription.close_notify))
            node = node.add_child(ExpectAlert(AlertLevel.warning,
                                              AlertDescription.close_notify))
            node.next_sibling = ExpectClose()
            node.add_child(ExpectClose())

            conversations["{0} or {1} negotiation".format(GroupName.toStr(group),
                    GroupName.toStr(group2))] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.renegotiation_info: None}
    ext[ExtensionType.supported_groups] = \
            SupportedGroupsExtension().create([511])
    if sig_algs:
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(cipher=CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                                            extensions={ExtensionType.
                                                     renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert(AlertLevel.warning,
                                      AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    node.add_child(ExpectClose())

    conversations["fallback to non-ffdhe"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.renegotiation_info: None}
    ext[ExtensionType.supported_groups] = \
            SupportedGroupsExtension().create([GroupName.secp256r1, 511])
    if sig_algs:
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(cipher=CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
                                            extensions={ExtensionType.
                                                     renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert(AlertLevel.warning,
                                      AlertDescription.close_notify))
    node.next_sibling = ExpectClose()
    node.add_child(ExpectClose())

    conversations["fallback to non-ffdhe with secp256r1 advertised"] = conversation

    # first paragraph of section 4 in RFC 7919
    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_NULL_SHA,
               CipherSuite.TLS_DHE_RSA_WITH_AES_128_CBC_SHA]
    ext = {ExtensionType.renegotiation_info: None}
    ext[ExtensionType.supported_groups] = \
            SupportedGroupsExtension().create([511])
    if sig_algs:
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectAlert(AlertLevel.fatal,
                                      getattr(AlertDescription, fatal_alert)))
    node.add_child(ExpectClose())

    conversations["no overlap between groups"] = conversation


    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    num_limit = num_limit or len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items() if
                          k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items() if
                         (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                        bad += 1
                        failed.append(c_name)
                        print("Expected error message: {0}\n"
                            .format(expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2*len(sanity_tests)))
    print("SKIP: {0}".format(len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed ,key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 29
0
def main():
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_256_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = SupportedVersionsExtension()\
        .create([TLS_1_3_DRAFT, (3, 3)])
    ext[ExtensionType.supported_groups] = SupportedGroupsExtension()\
        .create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = SignatureAlgorithmsExtension()\
        .create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = SignatureAlgorithmsCertExtension()\
        .create(RSA_SIG_ALL)
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.handshake_failure))
    node = node.add_child(ExpectClose())
    conversations["tls13-no-ciphers"] = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items()
                         if k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items()
                         if (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                    bad += 1
                    failed.append(c_name)
                    print("Expected error message: {0}\n".format(
                        expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2 * len(sanity_tests)))
    print("SKIP: {0}".format(
        len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed, key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad or xpass:
        sys.exit(1)
Ejemplo n.º 30
0
def main():
    host = "localhost"
    port = 4433
    num_limit = 50
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    # The payload has to be long enough to trigger heap overflow
    # Create max. length application data:
    #   2**14 (max. record size) - 28 ("GET / HTTP/1.0\r\nX-test: " + ending)
    data_length = 2**14 - 28

    # 16 bytes: POLY1305 tag 128 bit
    # Tampering one bit suffices to damage the mac
    fuzzes = [(x, 2**y) for x in range(-16, 0) for y in range(8)]
    for pos, val in fuzzes:
        conversation = Connect(host, port)
        node = conversation
        ciphers = [CipherSuite.TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256]
        node = node.add_child(ClientHelloGenerator(ciphers))
        node = node.add_child(ExpectServerHello())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectServerKeyExchange())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(ExpectChangeCipherSpec())
        node = node.add_child(ExpectFinished())
        node = node.add_child(
            fuzz_encrypted_message(
                ApplicationDataGenerator(b"GET / HTTP/1.0\r\n" + b'X-test: ' +
                                         data_length * b'A' + b'\r\n\r\n'),
                xors={pos: val}))
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, AlertDescription.bad_record_mac))
        node = node.add_child(ExpectClose())
        conversations["XOR position " + str(pos) + " with " + str(hex(val))] = \
            conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_DHE_RSA_WITH_CHACHA20_POLY1305_SHA256]
    node = node.add_child(ClientHelloGenerator(ciphers))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerKeyExchange())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(
        ApplicationDataGenerator(b"GET / HTTP/1.0\r\n" + b'X-test: ' +
                                 data_length * b'A' + b'\r\n\r\n'))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    # allow for multiple application data records in response
    node = node.add_child(ExpectApplicationData())
    loop = node
    node = node.add_child(
        ExpectAlert(AlertLevel.warning, AlertDescription.close_notify))
    loop.next_sibling = node
    node.next_sibling = ExpectClose()
    conversations["sanity"] = \
        conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        run_only_tests = [(k, v) for k, v in conversations.items()
                          if k in run_only]
        sampled_tests = sample(run_only_tests,
                               min(num_limit, len(run_only_tests)))
    else:
        regular_tests = [(k, v) for k, v in conversations.items()
                         if (k != 'sanity') and k not in run_exclude]
        sampled_tests = sample(regular_tests, min(num_limit,
                                                  len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                    bad += 1
                    failed.append(c_name)
                    print("Expected error message: {0}\n".format(
                        expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2 * len(sanity_tests)))
    print("SKIP: {0}".format(
        len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed, key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad > 0:
        sys.exit(1)
def main():

    #
    # Test interleaving of Application Data with handshake messages,
    # requires an HTTP-like server with support for client initiated
    # renegotiation
    #

    conversations = {}

    conver = Connect("localhost", 4433)
    node = conver
    #ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
    #           CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(
        ClientHelloGenerator(
            ciphers, extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    node = node.add_child(
        ClientHelloGenerator(
            [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA],
            session_id=bytearray(0),
            extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    # interleaved AppData
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0")))
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(bytearray(b"\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["Application data before Client Key Exchange"] = conver

    conver = Connect("localhost", 4433)
    node = conver
    #ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
    #           CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(
        ClientHelloGenerator(
            ciphers, extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    node = node.add_child(
        ClientHelloGenerator(
            [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA],
            session_id=bytearray(0),
            extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    # interleaved AppData
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0")))
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(bytearray(b"\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["Application data before Change Cipher Spec"] = conver

    conver = Connect("localhost", 4433)
    node = conver
    #ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
    #           CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(
        ClientHelloGenerator(
            ciphers, extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    # 2nd handshake
    node = node.add_child(ResetHandshakeHashes())
    node = node.add_child(
        ClientHelloGenerator(
            [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA],
            session_id=bytearray(0),
            extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(
        ExpectServerHello(extensions={ExtensionType.renegotiation_info: None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    # interleaved AppData
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0")))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["Application data before Finished"] = conver
    # run the conversation
    good = 0
    bad = 0

    for conver_name in conversations:
        conversation = conversations[conver_name]
        runner = Runner(conversation)
        print(conver_name + "...")

        res = True
        try:
            runner.run()
        except:
            print("\n")
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if res:
            good += 1
            print("OK")
        else:
            bad += 1

    print("Test end")
    print("successful: {0}".format(good))
    print("failed: {0}".format(bad))

    if bad > 0:
        sys.exit(1)
Ejemplo n.º 32
0
def main():
    """Check what signature algorithms server advertises"""
    hostname = "localhost"
    port = 4433
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None
    cert = None
    private_key = None
    ext_spec = {
        'CH': None,
        'SH': None,
        'EE': None,
        'CT': None,
        'CR': None,
        'NST': None,
        'HRR': None
    }

    sigalgs = [
        SignatureScheme.ecdsa_secp521r1_sha512,
        SignatureScheme.ecdsa_secp384r1_sha384,
        SignatureScheme.ecdsa_secp256r1_sha256,
        (HashAlgorithm.sha224, SignatureAlgorithm.ecdsa),
        (HashAlgorithm.sha1,
         SignatureAlgorithm.ecdsa), SignatureScheme.rsa_pss_rsae_sha512,
        SignatureScheme.rsa_pss_pss_sha512,
        SignatureScheme.rsa_pss_rsae_sha384,
        SignatureScheme.rsa_pss_pss_sha384,
        SignatureScheme.rsa_pss_rsae_sha256,
        SignatureScheme.rsa_pss_pss_sha256, SignatureScheme.rsa_pkcs1_sha512,
        SignatureScheme.rsa_pkcs1_sha384, SignatureScheme.rsa_pkcs1_sha256,
        SignatureScheme.rsa_pkcs1_sha224, SignatureScheme.rsa_pkcs1_sha1
    ]

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:s:k:c:E:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        elif opt == '-s':
            sigalgs = sig_algs_to_ids(arg)
        elif opt == '-E':
            ext_spec = expected_ext_parser(arg)
        elif opt == '-k':
            text_key = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_key = str(text_key, 'utf-8')
            private_key = parsePEMKey(text_key, private=True)
        elif opt == '-c':
            text_cert = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_cert = str(text_cert, 'utf-8')
            cert = X509()
            cert.parse(text_cert)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    # sanity check for Client Certificates
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = \
        ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = \
        SupportedVersionsExtension().create([(3, 4), (3, 3)])
    ext[ExtensionType.supported_groups] = \
        SupportedGroupsExtension().create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = \
        SignatureAlgorithmsExtension().create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = \
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    ext = dict_update_non_present(ext, ext_spec['CH'])
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = dict_update_non_present(None, ext_spec['SH'])
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectChangeCipherSpec())
    ext = dict_update_non_present(None, ext_spec['EE'])
    node = node.add_child(ExpectEncryptedExtensions(extensions=ext))
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(CertificateGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))

    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)

    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    if cert and private_key:
        # sanity check for Client Certificates
        conversation = Connect(hostname, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_AES_128_GCM_SHA256,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {}
        groups = [GroupName.secp256r1]
        key_shares = []
        for group in groups:
            key_shares.append(key_share_gen(group))
        ext[ExtensionType.key_share] = \
            ClientKeyShareExtension().create(key_shares)
        ext[ExtensionType.supported_versions] = \
            SupportedVersionsExtension().create([(3, 4), (3, 3)])
        ext[ExtensionType.supported_groups] = \
            SupportedGroupsExtension().create(groups)
        sig_algs = [
            SignatureScheme.rsa_pss_rsae_sha256,
            SignatureScheme.rsa_pss_pss_sha256
        ]
        ext[ExtensionType.signature_algorithms] = \
            SignatureAlgorithmsExtension().create(sig_algs)
        ext[ExtensionType.signature_algorithms_cert] = \
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        ext = dict_update_non_present(ext, ext_spec['CH'])
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        ext = dict_update_non_present(None, ext_spec['SH'])
        node = node.add_child(ExpectServerHello(extensions=ext))
        node = node.add_child(ExpectChangeCipherSpec())
        ext = dict_update_non_present(None, ext_spec['EE'])
        node = node.add_child(ExpectEncryptedExtensions(extensions=ext))
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateVerify())
        node = node.add_child(ExpectFinished())
        node = node.add_child(CertificateGenerator(X509CertChain([cert])))
        node = node.add_child(CertificateVerifyGenerator(private_key))
        node = node.add_child(FinishedGenerator())
        node = node.add_child(
            ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
        # This message is optional and may show up 0 to many times
        cycle = ExpectNewSessionTicket()
        node = node.add_child(cycle)
        node.add_child(cycle)

        node.next_sibling = ExpectApplicationData()
        node = node.next_sibling.add_child(
            AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))

        node = node.add_child(ExpectAlert())
        node.next_sibling = ExpectClose()
        conversations["with certificate"] = conversation

    # verify the advertised hashes
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = \
        ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = \
        SupportedVersionsExtension().create([(3, 4), (3, 3)])
    ext[ExtensionType.supported_groups] = \
        SupportedGroupsExtension().create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = \
        SignatureAlgorithmsExtension().create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = \
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    ext = dict_update_non_present(ext, ext_spec['CH'])
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = dict_update_non_present(None, ext_spec['SH'])
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectChangeCipherSpec())
    ext = dict_update_non_present(None, ext_spec['EE'])
    node = node.add_child(ExpectEncryptedExtensions(extensions=ext))
    node = node.add_child(ExpectCertificateRequest(sigalgs))
    # extensions are not yet supported in Certificate messages
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(CertificateGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)
    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["check sigalgs in cert request"] = conversation

    # verify the sent extensions
    conversation = Connect(hostname, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_AES_128_GCM_SHA256,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {}
    groups = [GroupName.secp256r1]
    key_shares = []
    for group in groups:
        key_shares.append(key_share_gen(group))
    ext[ExtensionType.key_share] = \
        ClientKeyShareExtension().create(key_shares)
    ext[ExtensionType.supported_versions] = \
        SupportedVersionsExtension().create([(3, 4), (3, 3)])
    ext[ExtensionType.supported_groups] = \
        SupportedGroupsExtension().create(groups)
    sig_algs = [
        SignatureScheme.rsa_pss_rsae_sha256, SignatureScheme.rsa_pss_pss_sha256
    ]
    ext[ExtensionType.signature_algorithms] = \
        SignatureAlgorithmsExtension().create(sig_algs)
    ext[ExtensionType.signature_algorithms_cert] = \
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    ext = dict_update_non_present(ext, ext_spec['CH'])
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    ext = dict_update_non_present(None, ext_spec['SH'])
    node = node.add_child(ExpectServerHello(extensions=ext))
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectEncryptedExtensions())
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create(sigalgs)
    }
    ext = dict_update_non_present(ext, ext_spec['CR'])
    node = node.add_child(ExpectCertificateRequest(extensions=ext))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateVerify())
    node = node.add_child(ExpectFinished())
    node = node.add_child(CertificateGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(
        ApplicationDataGenerator(bytearray(b"GET / HTTP/1.0\r\n\r\n")))
    # This message is optional and may show up 0 to many times
    cycle = ExpectNewSessionTicket()
    node = node.add_child(cycle)
    node.add_child(cycle)
    node.next_sibling = ExpectApplicationData()
    node = node.next_sibling.add_child(
        AlertGenerator(AlertLevel.warning, AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["verify extensions in CertificateRequest"] = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    regular_tests = [(k, v) for k, v in conversations.items() if k != 'sanity']
    sampled_tests = sample(regular_tests, len(regular_tests))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS: expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                    bad += 1
                    failed.append(c_name)
                    print("Expected error message: {0}\n".format(
                        expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Test to verify if server accepts empty certificate messages and")
    print("advertises only expected signature algotithms and extensions in ")
    print("Certificate Request message\n")
    print("version: {0}\n".format(version))

    print("Test end")
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2 * len(sanity_tests)))
    print("SKIP: {0}".format(
        len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed, key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad > 0:
        sys.exit(1)
def main():

    #
    # Test sending invalid (too short or too long) Finished messages
    #
    host = "localhost"
    port = 4433
    num_limit = None
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if args:
        run_only = set(args)
    else:
        run_only = None

    conversations = {}

    conversation = Connect(host, port)
    node = conversation
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
               CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    node = node.add_child(ClientHelloGenerator(ciphers))
    node = node.add_child(ExpectServerHello())
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(
        bytearray(b"GET / HTTP/1.0\n\n")))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertLevel.warning,
                                         AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()
    conversations["sanity"] = conversation

    conver = Connect(host, port)
    node = conver
    #ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
    #           CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions={ExtensionType.renegotiation_info:None}))
    node = node.add_child(ExpectServerHello(extensions={ExtensionType.renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(pad_handshake(FinishedGenerator(), pad=bytearray(b'\xfa')))
    #node = node.add_child(ExpectChangeCipherSpec())
    #node = node.add_child(ExpectFinished())

    #node = node.add_child(AlertGenerator(AlertLevel.warning,
    #                                     AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["padded Finished"] = conver

    conver = Connect(host, port)
    node = conver
    #ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
    #           CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV]
    ciphers = [CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA]
    node = node.add_child(ClientHelloGenerator(ciphers,
                                               extensions={ExtensionType.renegotiation_info:None}))
    node = node.add_child(ExpectServerHello(extensions={ExtensionType.renegotiation_info:None}))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(truncate_handshake(FinishedGenerator(), 1))
    #node = node.add_child(ExpectChangeCipherSpec())
    #node = node.add_child(ExpectFinished())

    #node = node.add_child(AlertGenerator(AlertLevel.warning,
    #                                     AlertDescription.close_notify))
    node = node.add_child(ExpectAlert())
    node.next_sibling = ExpectClose()

    conversations["truncated Finished"] = conver

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items() if
                          k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items() if
                         (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                        bad += 1
                        failed.append(c_name)
                        print("Expected error message: {0}\n"
                            .format(expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2*len(sanity_tests)))
    print("SKIP: {0}".format(len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed ,key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad > 0:
        sys.exit(1)
def main():
    """Check if malformed messages related to client certs are rejected."""
    conversations = {}
    host = "localhost"
    port = 4433
    num_limit = 1000
    run_exclude = set()
    expected_failures = {}
    last_exp_tmp = None
    private_key = None
    cert = None

    argv = sys.argv[1:]
    opts, args = getopt.getopt(argv, "h:p:e:x:X:k:c:n:", ["help"])
    for opt, arg in opts:
        if opt == '-h':
            host = arg
        elif opt == '-p':
            port = int(arg)
        elif opt == '-e':
            run_exclude.add(arg)
        elif opt == '-n':
            num_limit = int(arg)
        elif opt == '-x':
            expected_failures[arg] = None
            last_exp_tmp = str(arg)
        elif opt == '-X':
            if not last_exp_tmp:
                raise ValueError("-x has to be specified before -X")
            expected_failures[last_exp_tmp] = str(arg)
        elif opt == '--help':
            help_msg()
            sys.exit(0)
        elif opt == '-k':
            text_key = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_key = str(text_key, 'utf-8')
            private_key = parsePEMKey(text_key, private=True)
        elif opt == '-c':
            text_cert = open(arg, 'rb').read()
            if sys.version_info[0] >= 3:
                text_cert = str(text_cert, 'utf-8')
            cert = X509()
            cert.parse(text_cert)
        else:
            raise ValueError("Unknown option: {0}".format(opt))

    if not private_key:
        raise ValueError("Specify private key file using -k")
    if not cert:
        raise ValueError("Specify certificate file using -c")

    if args:
        run_only = set(args)
    else:
        run_only = None

    # sanity check for Client Certificates
    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create([
            (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa)
            for x in ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
        ]),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator(X509CertChain([cert])))
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(CertificateVerifyGenerator(private_key))
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\n\n"))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertDescription.close_notify))
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert()
    node.next_sibling.add_child(ExpectClose())

    conversations["sanity"] = conversation

    # sanity check for no client certificate
    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create([
            (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa)
            for x in ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
        ]),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(CertificateGenerator(None))
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(ExpectChangeCipherSpec())
    node = node.add_child(ExpectFinished())
    node = node.add_child(ApplicationDataGenerator(b"GET / HTTP/1.0\n\n"))
    node = node.add_child(ExpectApplicationData())
    node = node.add_child(AlertGenerator(AlertDescription.close_notify))
    node = node.add_child(ExpectClose())
    node.next_sibling = ExpectAlert()
    node.next_sibling.add_child(ExpectClose())

    conversations["sanity - no client cert"] = conversation

    for i in range(1, 0x100):
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {
            ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create([
                (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa) for x in
                ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
            ]),
            ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        }
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(version=(3, 3)))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(TCPBufferingEnable())
        node = node.add_child(
            fuzz_message(CertificateGenerator(X509CertChain([cert])),
                         xors={7: i}))
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(CertificateVerifyGenerator(private_key))
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(TCPBufferingDisable())
        node = node.add_child(TCPBufferingFlush())
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, AlertDescription.decode_error))
        node = node.add_child(ExpectClose())

        conversations["fuzz certificates length with {0}".format(
            i)] = conversation

    for i in range(1, 0x100):
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {
            ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create([
                (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa) for x in
                ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
            ]),
            ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        }
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(version=(3, 3)))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(TCPBufferingEnable())
        node = node.add_child(
            fuzz_message(CertificateGenerator(X509CertChain([cert])),
                         xors={9: i}))
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(CertificateVerifyGenerator(private_key))
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(TCPBufferingDisable())
        node = node.add_child(TCPBufferingFlush())
        # If the lenght of the certificates is inconsitent, we expect decode_error.
        # If the lenght seems fine for that cert(they are parsed one by one), but
        # the payload is wrong, it will fail with bad_certificate.
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, (AlertDescription.decode_error,
                                           AlertDescription.bad_certificate)))
        node = node.add_child(ExpectClose())

        conversations["fuzz first certificate length with {0}".format(
            i)] = conversation

    # fuzz empty certificates message
    for i in range(1, 0x100):
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {
            ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create([
                (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa) for x in
                ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
            ]),
            ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        }
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(version=(3, 3)))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(TCPBufferingEnable())
        node = node.add_child(
            fuzz_message(CertificateGenerator(None), xors={-1: i}))
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(TCPBufferingDisable())
        node = node.add_child(TCPBufferingFlush())
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, AlertDescription.decode_error))
        node = node.add_child(ExpectClose())

        conversations["fuzz empty certificates length - {0}".format(
            i)] = conversation

    # sanity check for no client certificate
    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create([
            (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa)
            for x in ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
        ]),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(TCPBufferingEnable())
    msg = CertificateGenerator()
    msg = pad_handshake(msg, 3)
    msg = fuzz_message(msg, substitutions={-4: 3})
    node = node.add_child(msg)
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(TCPBufferingDisable())
    node = node.add_child(TCPBufferingFlush())
    # if the implementation is proper, it will reject the message
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.decode_error))
    node = node.add_child(ExpectClose())
    conversations["sanity - empty client cert"] = conversation

    # fuzz empty certificate message
    for i, j, k in ((i, j, k) for i in range(8) for j in range(8)
                    for k in range(6)):
        if i == 3 and j == 0 or k == 0 and i == 0:
            continue
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {
            ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create([
                (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa) for x in
                ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
            ]),
            ExtensionType.signature_algorithms_cert:
            SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
        }
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(version=(3, 3)))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(TCPBufferingEnable())
        msg = CertificateGenerator()
        # extend the handshake message to allow for modifying fictional
        # certificate_list
        msg = pad_handshake(msg, k)
        # change the overall length of the certificate_list
        subs = {6: i}
        if k >= 3:
            # if there's payload past certificate_list length tag
            # set the byte that specifies length of first certificate
            subs[9] = j
        msg = fuzz_message(msg, substitutions=subs)
        node = node.add_child(msg)
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(TCPBufferingDisable())
        node = node.add_child(TCPBufferingFlush())
        # when the certificate is just a string of null bytes, it's a bad
        # certificate
        # (all length tags are 3 byte long)
        if i == j + 3 and k + 3 == i + 3 and j > 0:
            node = node.add_child(
                ExpectAlert(AlertLevel.fatal,
                            AlertDescription.bad_certificate))
        else:
            # If the lenght of the certificates is inconsitent, we expect decode_error.
            # If the lenght seems fine for that cert(they are parsed one by one), but
            # the payload is wrong, it will fail with bad_certificate.
            node = node.add_child(
                ExpectAlert(AlertLevel.fatal,
                            (AlertDescription.decode_error,
                             AlertDescription.bad_certificate)))
        node = node.add_child(ExpectClose())

        conversations[
            "fuzz empty certificate - overall {2}, certs {0}, cert {1}".format(
                i, j, k + 3)] = conversation

    conversation = Connect(host, port)
    node = conversation
    ciphers = [
        CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
        CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
    ]
    ext = {
        ExtensionType.signature_algorithms:
        SignatureAlgorithmsExtension().create([
            (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa)
            for x in ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
        ]),
        ExtensionType.signature_algorithms_cert:
        SignatureAlgorithmsCertExtension().create(RSA_SIG_ALL)
    }
    node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
    node = node.add_child(ExpectServerHello(version=(3, 3)))
    node = node.add_child(ExpectCertificate())
    node = node.add_child(ExpectCertificateRequest())
    node = node.add_child(ExpectServerHelloDone())
    node = node.add_child(TCPBufferingEnable())
    empty_cert = X509()
    msg = CertificateGenerator(X509CertChain([cert, empty_cert]))
    node = node.add_child(msg)
    node = node.add_child(ClientKeyExchangeGenerator())
    node = node.add_child(ChangeCipherSpecGenerator())
    node = node.add_child(FinishedGenerator())
    node = node.add_child(TCPBufferingDisable())
    node = node.add_child(TCPBufferingFlush())
    node = node.add_child(
        ExpectAlert(AlertLevel.fatal, AlertDescription.decode_error))
    node = node.add_child(ExpectClose())

    conversations["Correct cert followed by an empty one"] = conversation

    # fuzz the lenght of the second certificate which is empty
    for i in range(1, 0x100):
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {
            ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create([
                (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa) for x in
                ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
            ])
        }
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(version=(3, 3)))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(TCPBufferingEnable())
        empty_cert = X509()
        msg = CertificateGenerator(X509CertChain([cert, empty_cert]))
        node = node.add_child(msg)
        node = node.add_child(fuzz_message(msg, xors={-1: i}))
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(TCPBufferingDisable())
        node = node.add_child(TCPBufferingFlush())
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, AlertDescription.decode_error))
        node = node.add_child(ExpectClose())

        conversations["fuzz second certificate(empty) length - {0}".format(
            i)] = conversation

    # Correct cert followed by 2 empty certs. Fuzz the length of the middle(2nd) cert
    for i in range(1, 0x100):
        conversation = Connect(host, port)
        node = conversation
        ciphers = [
            CipherSuite.TLS_RSA_WITH_AES_128_CBC_SHA,
            CipherSuite.TLS_EMPTY_RENEGOTIATION_INFO_SCSV
        ]
        ext = {
            ExtensionType.signature_algorithms:
            SignatureAlgorithmsExtension().create([
                (getattr(HashAlgorithm, x), SignatureAlgorithm.rsa) for x in
                ['sha512', 'sha384', 'sha256', 'sha224', 'sha1', 'md5']
            ])
        }
        node = node.add_child(ClientHelloGenerator(ciphers, extensions=ext))
        node = node.add_child(ExpectServerHello(version=(3, 3)))
        node = node.add_child(ExpectCertificate())
        node = node.add_child(ExpectCertificateRequest())
        node = node.add_child(ExpectServerHelloDone())
        node = node.add_child(TCPBufferingEnable())
        empty_cert = X509()
        msg = CertificateGenerator(X509CertChain([cert, empty_cert]))
        msg = pad_handshake(msg, 3)
        node = node.add_child(msg)
        node = node.add_child(fuzz_message(msg, xors={-4: i}))
        node = node.add_child(ClientKeyExchangeGenerator())
        node = node.add_child(ChangeCipherSpecGenerator())
        node = node.add_child(FinishedGenerator())
        node = node.add_child(TCPBufferingDisable())
        node = node.add_child(TCPBufferingFlush())
        # If the lenght of the certificates is inconsitent, we expect decode_error.
        # If the lenght seems fine for that cert(they are parsed one by one), but
        # the payload is wrong, it will fail with bad_certificate.
        node = node.add_child(
            ExpectAlert(AlertLevel.fatal, (AlertDescription.decode_error,
                                           AlertDescription.bad_certificate)))
        node = node.add_child(ExpectClose())

        conversations["fuzz middle certificate(empty) length - {0}".format(
            i)] = conversation

    # run the conversation
    good = 0
    bad = 0
    xfail = 0
    xpass = 0
    failed = []
    xpassed = []
    if not num_limit:
        num_limit = len(conversations)

    # make sure that sanity test is run first and last
    # to verify that server was running and kept running throughout
    sanity_tests = [('sanity', conversations['sanity'])]
    if run_only:
        if num_limit > len(run_only):
            num_limit = len(run_only)
        regular_tests = [(k, v) for k, v in conversations.items()
                         if k in run_only]
    else:
        regular_tests = [(k, v) for k, v in conversations.items()
                         if (k != 'sanity') and k not in run_exclude]
    sampled_tests = sample(regular_tests, min(num_limit, len(regular_tests)))
    ordered_tests = chain(sanity_tests, sampled_tests, sanity_tests)

    for c_name, c_test in ordered_tests:
        if run_only and c_name not in run_only or c_name in run_exclude:
            continue
        print("{0} ...".format(c_name))

        runner = Runner(c_test)

        res = True
        exception = None
        try:
            runner.run()
        except Exception as exp:
            exception = exp
            print("Error while processing")
            print(traceback.format_exc())
            res = False

        if c_name in expected_failures:
            if res:
                xpass += 1
                xpassed.append(c_name)
                print("XPASS-expected failure but test passed\n")
            else:
                if expected_failures[c_name] is not None and  \
                    expected_failures[c_name] not in str(exception):
                    bad += 1
                    failed.append(c_name)
                    print("Expected error message: {0}\n".format(
                        expected_failures[c_name]))
                else:
                    xfail += 1
                    print("OK-expected failure\n")
        else:
            if res:
                good += 1
                print("OK\n")
            else:
                bad += 1
                failed.append(c_name)

    print("Malformed Certificate test\n")
    print("Test end")
    print(20 * '=')
    print("version: {0}".format(version))
    print(20 * '=')
    print("TOTAL: {0}".format(len(sampled_tests) + 2 * len(sanity_tests)))
    print("SKIP: {0}".format(
        len(run_exclude.intersection(conversations.keys()))))
    print("PASS: {0}".format(good))
    print("XFAIL: {0}".format(xfail))
    print("FAIL: {0}".format(bad))
    print("XPASS: {0}".format(xpass))
    print(20 * '=')
    sort = sorted(xpassed, key=natural_sort_keys)
    if len(sort):
        print("XPASSED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))
    sort = sorted(failed, key=natural_sort_keys)
    if len(sort):
        print("FAILED:\n\t{0}".format('\n\t'.join(repr(i) for i in sort)))

    if bad or xpass:
        sys.exit(1)