def test_default(): name = Name.from_str('/local/ndn/prefix') data = make_data(name, MetaInfo(), signer=DigestSha256Signer()) assert (data == b"\x06\x42\x07\x14\x08\x05local\x08\x03ndn\x08\x06prefix" b"\x14\x03\x18\x01\x00" b"\x16\x03\x1b\x01\x00" b"\x17 \x7f1\xe4\t\xc5z/\x1d\r\xdaVh8\xfd\xd9\x94" b"\xd8\'S\x13[\xd7\x15\xa5\x9d%^\x80\xf2\xab\xf0\xb5") name = Name.encode(name) data = make_data(name, MetaInfo(), b'01020304', signer=DigestSha256Signer()) assert (data == b'\x06L\x07\x14\x08\x05local\x08\x03ndn\x08\x06prefix' b'\x14\x03\x18\x01\x00' b'\x15\x0801020304' b'\x16\x03\x1b\x01\x00' b'\x17 \x94\xe9\xda\x91\x1a\x11\xfft\x02i:G\x0cO\xdd!' b'\xe0\xc7\xb6\xfd\x8f\x9cn\xc5\x93{\x93\x04\xe0\xdf\xa6S') name = '/local/ndn/prefix' meta_info = MetaInfo() data = make_data(name, meta_info) assert (data == b"\x06\x1b\x07\x14\x08\x05local\x08\x03ndn\x08\x06prefix" b"\x14\x03\x18\x01\x00") name = '/E' meta_info = MetaInfo() meta_info.content_type = None data = make_data(name, meta_info, b'', signer=DigestSha256Signer()) assert data == bytes.fromhex("0630 0703080145" "1400 1500 16031b0100" "1720f965ee682c6973c3cbaa7b69e4c7063680f83be93a46be2ccc98686134354b66")
def test_data_1(self): key = bytes(i for i in range(32)) signer = HmacSha256Signer('key1', key) data = make_data('/ndn/abc', MetaInfo(None), b'SUCCESS!', signer) assert (data.hex() == '0649070a08036e646e0803616263' '140015085355434345535321' '160d1b01041c08070608046b657931' '172019868e7183998df373332f3dd1c9c950fc29d734c07977791d8396fa3b91fd36')
def publishData(self, data: bytes) -> None: name = self.getDataName(self.nid, self.core.getSeqNum() + 1) data_packet = make_data(name, MetaInfo(freshness_period=5000), content=data) logging.info(f'SVSync: publishing data {Name.to_str(name)}') self.storage.put_data_packet(name, data_packet) self.core.updateStateVector(self.core.getSeqNum() + 1)
def test_meta_info(): name = '/local/ndn/prefix/37=%00' meta_info = MetaInfo() meta_info.content_type = ContentType.BLOB meta_info.freshness_period = 1000 meta_info.final_block_id = Component.from_sequence_num(2) data = make_data(name, meta_info, signer=DigestSha256Signer()) assert (data == b"\x06\x4e\x07\x17\x08\x05local\x08\x03ndn\x08\x06prefix\x25\x01\x00" b"\x14\x0c\x18\x01\x00\x19\x02\x03\xe8\x1a\x03\x25\x01\x02" b"\x16\x03\x1b\x01\x00" b"\x17 \x03\xb8,\x18\xffMw\x84\x86\xa5a\x94e\xcc\xdaQ\x15\xb7\xfb\x19\xab\x9d1lw\'\xdf\xac\x03#\xcad")
def test_verify(self): # Ecdsa signature is not unique, so we only test if we can verify it pri_key = ECC.generate(curve="P-256") key = pri_key.export_key(format="DER") pub_key = pri_key.public_key() signer = Sha256WithEcdsaSigner("/K/KEY/x", key) pkt = make_data("/test", MetaInfo(), b"test content", signer=signer) _, _, _, sig_ptrs = parse_data(pkt) # Test its format is ASN.1 der format DerSequence().decode(bytes(sig_ptrs.signature_value_buf)) validator = EccChecker.from_key( "/K/KEY/x", bytes(pub_key.export_key(format='DER'))) assert aio.run(validator(Name.from_str("/test"), sig_ptrs))
def test_meta_info(): name = '/local/ndn/prefix/37=%00' meta_info = MetaInfo() meta_info.content_type = ContentType.BLOB meta_info.freshness_period = 1000 meta_info.final_block_id = Component.from_sequence_num(2) data = make_data(name, meta_info, signer=DigestSha256Signer()) assert ( data == b"\x06\x4e\x07\x17\x08\x05local\x08\x03ndn\x08\x06prefix\x25\x01\x00" b"\x14\x0c\x18\x01\x00\x19\x02\x03\xe8\x1a\x03\x3a\x01\x02" b"\x16\x03\x1b\x01\x00" b"\x17 \x0f^\xa1\x0c\xa7\xf5Fb\xf0\x9cOT\xe0FeC\x8f92\x04\x9d\xabP\x80o\'\x94\xaa={hQ" )
def test_shrink_signature(): class ShrinkSigner(Signer): def write_signature_info(self, signature_info): pass def get_signature_value_size(self) -> int: return 10 def write_signature_value(self, wire: VarBinaryStr, contents: List[VarBinaryStr]) -> int: return 5 name = '/test' meta_info = MetaInfo(content_type=ContentType.BLOB) data = make_data(name, meta_info, signer=ShrinkSigner()) assert data == b'\x06\x16\x07\x06\x08\x04test\x14\x03\x18\x01\x00\x16\x00\x17\x05\x00\x00\x00\x00\x00'
def test_verify(self): # Ecdsa signature is not unique, so we only test if we can verify it pri_key = ECC.generate(curve="P-256") key = pri_key.export_key(format="DER") pub_key = pri_key.public_key() signer = Sha256WithEcdsaSigner("/K/KEY/x", key) pkt = make_data("/test", MetaInfo(), b"test content", signer=signer) _, _, _, sig_ptrs = parse_data(pkt) # Test its format is ASN.1 der format DerSequence().decode(bytes(sig_ptrs.signature_value_buf)) verifier = DSS.new(pub_key, 'fips-186-3', 'der') h = SHA256.new() for content in sig_ptrs.signature_covered_part: h.update(content) # verify() throws ValueError if it fails, the return value is undefined # So do not assert its value verifier.verify(h, bytes(sig_ptrs.signature_value_buf))
def test_verify(self): pri_key = Ed25519PrivateKey.generate() key = pri_key.private_bytes( encoding=serialization.Encoding.Raw, format=serialization.PrivateFormat.Raw, encryption_algorithm=serialization.NoEncryption(), ) pub_key = pri_key.public_key() signer = Ed25519Signer("/K/KEY/x", key) pkt = make_data("/test", MetaInfo(), b"test content", signer=signer) _, _, _, sig_ptrs = parse_data(pkt) pub_bits = pub_key.public_bytes( encoding=serialization.Encoding.DER, format=serialization.PublicFormat.SubjectPublicKeyInfo, ) validator = Ed25519Checker.from_key("/K/KEY/x", bytes(pub_bits)) assert aio.run(validator(Name.from_str("/test"), sig_ptrs))
def prepare_data(self, name: NonStrictName, content: Optional[BinaryStr] = None, **kwargs): r""" Prepare a Data packet by generating, encoding and signing it. :param name: the Name. :type name: :any:`NonStrictName` :param content: the Content. :type content: Optional[:any:`BinaryStr`] :param kwargs: :ref:`label-keyword-arguments`. :return: TLV encoded Data packet. """ if 'signer' in kwargs: signer = kwargs['signer'] else: signer = self.keychain.get_signer(kwargs) if 'meta_info' in kwargs: meta_info = kwargs['meta_info'] else: meta_info = MetaInfo.from_dict(kwargs) return make_data(name, meta_info, content, signer=signer)
async def fetchData(self, nid: Name, seqNum: int, retries: int = 0) -> Optional[bytes]: name = self.getDataName(nid, seqNum) while retries + 1 > 0: try: logging.info(f'SVSync: fetching data {Name.to_str(name)}') ex_int_name, meta_info, content = await self.app.express_interest( name, must_be_fresh=True, can_be_prefix=False, lifetime=6000) logging.info(f'SVSync: received data {bytes(content)}') if content and self.cacheOthers: data_packet = make_data(name, MetaInfo(freshness_period=5000), content=bytes(content)) logging.info( f'SVSync: publishing others data {Name.to_str(name)}') self.storage.put_data_packet(name, data_packet) return bytes(content) if content else None except InterestNack as e: logging.warning(f'SVSync: nacked with reason={e.reason}') except InterestTimeout: logging.warning(f'SVSync: timeout') except InterestCanceled: logging.warning(f'SVSync: canceled') except ValidationFailure: logging.warning(f'SVSync: data failed to validate') except Exception as e: logging.warning(f'SVSync: unknown error has occured: {e}') retries = retries - 1 if retries + 1 > 0: logging.warning(f'SVSync: retrying fetching data') return None
def test_data(self): key = bytes([ 0x30, 0x82, 0x04, 0xbf, 0x02, 0x01, 0x00, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48, 0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x04, 0x82, 0x04, 0xa9, 0x30, 0x82, 0x04, 0xa5, 0x02, 0x01, 0x00, 0x02, 0x82, 0x01, 0x01, 0x00, 0xb8, 0x09, 0xa7, 0x59, 0x82, 0x84, 0xec, 0x4f, 0x06, 0xfa, 0x1c, 0xb2, 0xe1, 0x38, 0x93, 0x53, 0xbb, 0x7d, 0xd4, 0xac, 0x88, 0x1a, 0xf8, 0x25, 0x11, 0xe4, 0xfa, 0x1d, 0x61, 0x24, 0x5b, 0x82, 0xca, 0xcd, 0x72, 0xce, 0xdb, 0x66, 0xb5, 0x8d, 0x54, 0xbd, 0xfb, 0x23, 0xfd, 0xe8, 0x8e, 0xaf, 0xa7, 0xb3, 0x79, 0xbe, 0x94, 0xb5, 0xb7, 0xba, 0x17, 0xb6, 0x05, 0xae, 0xce, 0x43, 0xbe, 0x3b, 0xce, 0x6e, 0xea, 0x07, 0xdb, 0xbf, 0x0a, 0x7e, 0xeb, 0xbc, 0xc9, 0x7b, 0x62, 0x3c, 0xf5, 0xe1, 0xce, 0xe1, 0xd9, 0x8d, 0x9c, 0xfe, 0x1f, 0xc7, 0xf8, 0xfb, 0x59, 0xc0, 0x94, 0x0b, 0x2c, 0xd9, 0x7d, 0xbc, 0x96, 0xeb, 0xb8, 0x79, 0x22, 0x8a, 0x2e, 0xa0, 0x12, 0x1d, 0x42, 0x07, 0xb6, 0x5d, 0xdb, 0xe1, 0xf6, 0xb1, 0x5d, 0x7b, 0x1f, 0x54, 0x52, 0x1c, 0xa3, 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0x73, 0xd8, 0x3f, 0xb5, 0x52, 0x35, 0x79, 0x1c, 0xee, 0x93, 0xa3, 0x32, 0x8b, 0xed, 0x89, 0x98, 0xf1, 0x0c, 0xd8, 0x12, 0xf2, 0x89, 0x7f, 0x32, 0x23, 0xec, 0x67, 0x66, 0x52, 0x83, 0x89, 0x99, 0x5e, 0x42, 0x2b, 0x42, 0x4b, 0x84, 0x50, 0x1b, 0x3e, 0x47, 0x6d, 0x74, 0xfb, 0xd1, 0xa6, 0x10, 0x20, 0x6c, 0x6e, 0xbe, 0x44, 0x3f, 0xb9, 0xfe, 0xbc, 0x8d, 0xda, 0xcb, 0xea, 0x8f ]) meta_info = MetaInfo(None, 5000, b'\x08\x02\x00\x09') signer = Sha256WithRsaSigner('/testname/KEY/123', key) data = make_data('/ndn/abc', meta_info, b'SUCCESS!', signer) assert ( data.hex() == '06fd0143070a08036e646e0803616263' '140a190213881a0408020009' '15085355434345535321' '161b1b01011c1607140808746573746e616d6508034b45590803313233' '17fd0100' '5716f5b96a3141dba78970efa4f45601a36c2fc9910e82292c321ae6672ee099' '44930ef3dab60d714927a87063f1b8382d6c98c894cf2f065d7da28b380fa6cd' '08c83a243d847bc086da99c85fd14e941593d16e4f060b6a3bffb98035900643' '0ac22a334cb37dce105902e86ee8c7f4363042bdb815b455d0ce62ae7c43b027' '9842dd956f67a696ee176415873c918f36d976d68971d8d7f903a71ef6f38b27' '3c0d8ccfe23f12ecf5212a34b94eb62f822cda1f09e0f949640319cd026fb1ab' '85282e30a8fe3899bc86d86696e11e157b74f88c0efd9823369dab63262f5d7a' 'abb372a3aaf43307331a2796e913e3d36150f6a387b4c97c19a493bb4513af3f') validator = RsaChecker.from_key('/testname/KEY/123', key) _, _, _, sig_ptrs = parse_data(data) assert aio.run(validator(Name.from_str('/ndn/abc'), sig_ptrs))
def verify_data(self): signer = self.keychain.get_signer({}) data = make_data('/test/data', MetaInfo(), b'content', signer=signer) key_locator_name = self.verify(data) assert (Name.normalize(key_locator_name) == Name.normalize(self.keychain.default_identity().default_key().default_cert().name))
def verify_data(self): signer = self.keychain.get_signer({}) data = make_data('/test/data', MetaInfo(), b'content', signer=signer) self.verify(data)