def test_32(self):
self.assertEqual(
GOST341194(
b'This is message, length=32 bytes',
"GostR3411_94_CryptoProParamSet",
).hexdigest(),
"eb48de3e89e71bcb695fc752d617fae757f34fa77fa58ee114c5bdb7f7c2ef2c",
)
def test_message_digest(self):
self.assertEqual(
GOST341194(
b'message digest',
"GostR3411_94_CryptoProParamSet",
).hexdigest(),
"a01b72299bc39a540fd672a99a72b4bdfe74417386986efaeb01a42add4160bc",
)
def test_dog(self):
self.assertEqual(
GOST341194(
b'The quick brown fox jumps over the lazy dog',
"GostR3411_94_CryptoProParamSet",
).hexdigest(),
"760a8365d570476e787254761be7656774021b1f3de56f588c501a364a290490",
)
def test_rfc50(self):
self.assertEqual(
GOST341194(
b'Suppose the original message has length = 50 bytes',
"GostR3411_94_TestParamSet",
).hexdigest(),
"0852f5623b89dd57aeb4781fe54df14eeafbc1350613763a0d770aa657ba1a47",
)
def test_dog(self):
self.assertEqual(
GOST341194(
b'The quick brown fox jumps over the lazy dog',
"GostR3411_94_TestParamSet",
).hexdigest(),
"94421f6d370fa1d16ba7ac5e31296529c968047dca9bf4258ac59a0c41fab777",
)
def test_cog(self):
self.assertEqual(
GOST341194(
b'The quick brown fox jumps over the lazy cog',
"GostR3411_94_TestParamSet",
).hexdigest(),
"45c4ee4ee1d25091312135540d6702e6677f7a73b5da31e10b8bb7aadac4eba3",
)
def test_50(self):
self.assertEqual(
GOST341194(
b'Suppose the original message has length = 50 bytes',
"GostR3411_94_CryptoProParamSet",
).hexdigest(),
"1150a63031dc611a5f5e40d93153f74ebde8216f6792c25a91cfcabc5c0c73c3",
)
def test_rfc32(self):
self.assertEqual(
GOST341194(
b'This is message, length=32 bytes',
"GostR3411_94_TestParamSet",
).hexdigest(),
"faff37a615a816691cff3ef8b68ca247e09525f39f8119832eb81975d366c4b1",
)
def sign(private_key, data):
""" Sign data
:param private_key: private key to sign with
:type private_key: bytes, 32 bytes
:param bytes data: arbitrary data
:return: signature
:rtype: bytes, 64 bytes
"""
curve = GOST3410Curve(*CURVE_PARAMS[DEFAULT_CURVE])
return _sign(
curve,
bytes2long(private_key[::-1]),
GOST341194(data, GOST341194_SBOX).digest(),
)
def verify(public_key, data, signature):
""" Verify signature
:param public_key: public key to verify with
:type public_key: bytes, 64 bytes
:param bytes data: arbitrary data
:type signature: bytes, 64 bytes
:rtype: bool
"""
curve = GOST3410Curve(*CURVE_PARAMS[DEFAULT_CURVE])
public_key = public_key[::-1]
return _verify(
curve,
bytes2long(public_key[32:]),
bytes2long(public_key[:32]),
GOST341194(data, GOST341194_SBOX).digest(),
signature,
)
def kek(curve, private_key, ukm, pubkey):
""" Make Diffie-Hellman computation
:param GOST3410Curve curve: curve to use
:param long private_key: private key
:param ukm: UKM value (VKO-factor)
:type ukm: bytes, 8 bytes
:param pubkey: public key's part
:type pubkey: (long, long)
:return: Key Encryption Key (shared key)
:rtype: bytes, 32 bytes
Shared Key Encryption Key computation is based on
:rfc:`4357` VKO GOST 34.10-2001 with little-endian
hash output.
"""
key = curve.exp(private_key, pubkey[0], pubkey[1])
key = curve.exp(bytes2long(24 * b'\x00' + ukm), key[0], key[1])
return GOST341194((long2bytes(key[1]) + long2bytes(key[0]))[::-1],
"GostR3411_94_CryptoProParamSet").digest()[::-1]
def test_Us(self):
self.assertEqual(
GOST341194(128 * b'U',
"GostR3411_94_CryptoProParamSet").hexdigest(),
"e8c449f608104c512710cd37fded920df1e86b211623fa27f4bb914661c74a1c",
)
def test_a(self):
self.assertEqual(
GOST341194(b'a', "GostR3411_94_CryptoProParamSet").hexdigest(),
"1130402fcfaaf1ef3c13e3173f105a715580f7c97900af37bf832128dd524ce7",
)
def test_Us(self):
self.assertEqual(
GOST341194(128 * b'U', "GostR3411_94_TestParamSet").hexdigest(),
"a43357fee8a926d9522a06870a66251c553e2774a0851d0cef0c1825eda3a353",
)
def test_message_digest(self):
self.assertEqual(
GOST341194(b'message digest',
"GostR3411_94_TestParamSet").hexdigest(),
"4d9a88a416de2fdb72de483f27652b5869243dec59be0cb6992c8fb1ec3444ad",
)
def test_abc(self):
self.assertEqual(
GOST341194(b'abc', "GostR3411_94_TestParamSet").hexdigest(),
"1dd5a4067c49703b75bc75c9290f5ecbb5eb85229e7277a2b2b14fc4484313f3",
)
def test_a(self):
self.assertEqual(
GOST341194(b'a', "GostR3411_94_TestParamSet").hexdigest(),
"dd14f362cefd49f873a5c644431b87219c3449661f808ac8e9667c369e532cd4",
)
def test_abc(self):
self.assertEqual(
GOST341194(b'abc', "GostR3411_94_CryptoProParamSet").hexdigest(),
"2cd42ff986293b167e994381ed59747414dd24953677762d39d718bf6d0585b2",
)
def test_empty(self):
self.assertEqual(
GOST341194(b'', "GostR3411_94_CryptoProParamSet").hexdigest(),
"c056d64c2383c44a58139c9b560111ac133e43fb840f838714840ca33c5f1e98",
)
def test_empty(self):
self.assertEqual(
GOST341194(b'', "GostR3411_94_TestParamSet").hexdigest(),
"8d0f49492c91f45a68ff5c05d2c2b4ab78027b9aab5ce3feff5267c49cb985ce",
)
