def test_agreement(self):
alicePublic = bytearray([0x05, 0x1b, 0xb7, 0x59, 0x66,
0xf2, 0xe9, 0x3a, 0x36, 0x91,
0xdf, 0xff, 0x94, 0x2b, 0xb2,
0xa4, 0x66, 0xa1, 0xc0, 0x8b,
0x8d, 0x78, 0xca, 0x3f, 0x4d,
0x6d, 0xf8, 0xb8, 0xbf, 0xa2,
0xe4, 0xee, 0x28])
alicePrivate = bytearray([0xc8, 0x06, 0x43, 0x9d, 0xc9,
0xd2, 0xc4, 0x76, 0xff, 0xed,
0x8f, 0x25, 0x80, 0xc0, 0x88,
0x8d, 0x58, 0xab, 0x40, 0x6b,
0xf7, 0xae, 0x36, 0x98, 0x87,
0x90, 0x21, 0xb9, 0x6b, 0xb4,
0xbf, 0x59])
bobPublic = bytearray([0x05, 0x65, 0x36, 0x14, 0x99,
0x3d, 0x2b, 0x15, 0xee, 0x9e,
0x5f, 0xd3, 0xd8, 0x6c, 0xe7,
0x19, 0xef, 0x4e, 0xc1, 0xda,
0xae, 0x18, 0x86, 0xa8, 0x7b,
0x3f, 0x5f, 0xa9, 0x56, 0x5a,
0x27, 0xa2, 0x2f])
bobPrivate = bytearray([0xb0, 0x3b, 0x34, 0xc3, 0x3a,
0x1c, 0x44, 0xf2, 0x25, 0xb6,
0x62, 0xd2, 0xbf, 0x48, 0x59,
0xb8, 0x13, 0x54, 0x11, 0xfa,
0x7b, 0x03, 0x86, 0xd4, 0x5f,
0xb7, 0x5d, 0xc5, 0xb9, 0x1b,
0x44, 0x66])
shared = bytearray([0x32, 0x5f, 0x23, 0x93, 0x28,
0x94, 0x1c, 0xed, 0x6e, 0x67,
0x3b, 0x86, 0xba, 0x41, 0x01,
0x74, 0x48, 0xe9, 0x9b, 0x64,
0x9a, 0x9c, 0x38, 0x06, 0xc1,
0xdd, 0x7c, 0xa4, 0xc4, 0x77,
0xe6, 0x29])
alicePublicKey = Curve.decodePoint(alicePublic, 0)
alicePrivateKey = Curve.decodePrivatePoint(alicePrivate)
bobPublicKey = Curve.decodePoint(bobPublic, 0)
bobPrivateKey = Curve.decodePrivatePoint(bobPrivate)
sharedOne = Curve.calculateAgreement(alicePublicKey, bobPrivateKey)
sharedTwo = Curve.calculateAgreement(bobPublicKey, alicePrivateKey)
self.assertEqual(sharedOne, shared)
self.assertEqual(sharedTwo, shared)
def test_signature(self):
aliceIdentityPrivate = bytearray([0xc0, 0x97, 0x24, 0x84, 0x12,
0xe5, 0x8b, 0xf0, 0x5d, 0xf4,
0x87, 0x96, 0x82, 0x05, 0x13,
0x27, 0x94, 0x17, 0x8e, 0x36,
0x76, 0x37, 0xf5, 0x81, 0x8f,
0x81, 0xe0, 0xe6, 0xce, 0x73,
0xe8, 0x65])
aliceIdentityPublic = bytearray([0x05, 0xab, 0x7e, 0x71, 0x7d,
0x4a, 0x16, 0x3b, 0x7d, 0x9a,
0x1d, 0x80, 0x71, 0xdf, 0xe9,
0xdc, 0xf8, 0xcd, 0xcd, 0x1c,
0xea, 0x33, 0x39, 0xb6, 0x35,
0x6b, 0xe8, 0x4d, 0x88, 0x7e,
0x32, 0x2c, 0x64])
aliceEphemeralPublic = bytearray([0x05, 0xed, 0xce, 0x9d, 0x9c,
0x41, 0x5c, 0xa7, 0x8c, 0xb7,
0x25, 0x2e, 0x72, 0xc2, 0xc4,
0xa5, 0x54, 0xd3, 0xeb, 0x29,
0x48, 0x5a, 0x0e, 0x1d, 0x50,
0x31, 0x18, 0xd1, 0xa8, 0x2d,
0x99, 0xfb, 0x4a])
aliceSignature = bytearray([0x5d, 0xe8, 0x8c, 0xa9, 0xa8,
0x9b, 0x4a, 0x11, 0x5d, 0xa7,
0x91, 0x09, 0xc6, 0x7c, 0x9c,
0x74, 0x64, 0xa3, 0xe4, 0x18,
0x02, 0x74, 0xf1, 0xcb, 0x8c,
0x63, 0xc2, 0x98, 0x4e, 0x28,
0x6d, 0xfb, 0xed, 0xe8, 0x2d,
0xeb, 0x9d, 0xcd, 0x9f, 0xae,
0x0b, 0xfb, 0xb8, 0x21, 0x56,
0x9b, 0x3d, 0x90, 0x01, 0xbd,
0x81, 0x30, 0xcd, 0x11, 0xd4,
0x86, 0xce, 0xf0, 0x47, 0xbd,
0x60, 0xb8, 0x6e, 0x88])
alicePrivateKey = Curve.decodePrivatePoint(aliceIdentityPrivate)
alicePublicKey = Curve.decodePoint(aliceIdentityPublic, 0)
aliceEphemeral = Curve.decodePoint(aliceEphemeralPublic, 0)
res = Curve.verifySignature(alicePublicKey, aliceEphemeral.serialize(), bytes(aliceSignature))
self.assertTrue(res)
def getSigningKeyPrivate(self):
return Curve.decodePrivatePoint(self.senderKeyStateStructure.senderSigningKey.private)
def test_rootKeyDerivationV2(self):
rootKeySeed = bytearray(
[
0x7B,
0xA6,
0xDE,
0xBC,
0x2B,
0xC1,
0xBB,
0xF9,
0x1A,
0xBB,
0xC1,
0x36,
0x74,
0x04,
0x17,
0x6C,
0xA6,
0x23,
0x09,
0x5B,
0x7E,
0xC6,
0x6B,
0x45,
0xF6,
0x02,
0xD9,
0x35,
0x38,
0x94,
0x2D,
0xCC,
]
)
alicePublic = bytearray(
[
0x05,
0xEE,
0x4F,
0xA6,
0xCD,
0xC0,
0x30,
0xDF,
0x49,
0xEC,
0xD0,
0xBA,
0x6C,
0xFC,
0xFF,
0xB2,
0x33,
0xD3,
0x65,
0xA2,
0x7F,
0xAD,
0xBE,
0xFF,
0x77,
0xE9,
0x63,
0xFC,
0xB1,
0x62,
0x22,
0xE1,
0x3A,
]
)
alicePrivate = bytearray(
[
0x21,
0x68,
0x22,
0xEC,
0x67,
0xEB,
0x38,
0x04,
0x9E,
0xBA,
0xE7,
0xB9,
0x39,
0xBA,
0xEA,
0xEB,
0xB1,
0x51,
0xBB,
0xB3,
0x2D,
0xB8,
0x0F,
0xD3,
0x89,
0x24,
0x5A,
0xC3,
0x7A,
0x94,
0x8E,
0x50,
]
)
bobPublic = bytearray(
[
0x05,
0xAB,
0xB8,
0xEB,
0x29,
0xCC,
0x80,
0xB4,
0x71,
0x09,
0xA2,
0x26,
0x5A,
0xBE,
0x97,
0x98,
0x48,
0x54,
0x06,
0xE3,
0x2D,
0xA2,
0x68,
0x93,
0x4A,
0x95,
0x55,
0xE8,
0x47,
0x57,
0x70,
0x8A,
0x30,
]
)
nextRoot = bytearray(
[
0xB1,
0x14,
0xF5,
0xDE,
0x28,
0x01,
0x19,
0x85,
0xE6,
0xEB,
0xA2,
0x5D,
0x50,
0xE7,
0xEC,
0x41,
0xA9,
0xB0,
0x2F,
0x56,
0x93,
0xC5,
0xC7,
0x88,
0xA6,
0x3A,
0x06,
0xD2,
0x12,
0xA2,
0xF7,
0x31,
]
)
nextChain = bytearray(
[
0x9D,
0x7D,
0x24,
0x69,
0xBC,
0x9A,
0xE5,
0x3E,
0xE9,
0x80,
0x5A,
0xA3,
0x26,
0x4D,
0x24,
0x99,
0xA3,
0xAC,
0xE8,
0x0F,
0x4C,
0xCA,
0xE2,
0xDA,
0x13,
0x43,
0x0C,
0x5C,
0x55,
0xB5,
0xCA,
0x5F,
]
)
alicePublicKey = Curve.decodePoint(alicePublic, 0)
alicePrivateKey = Curve.decodePrivatePoint(alicePrivate)
aliceKeyPair = ECKeyPair(alicePublicKey, alicePrivateKey)
bobPublicKey = Curve.decodePoint(bobPublic, 0)
rootKey = RootKey(HKDF.createFor(2), rootKeySeed)
rootKeyChainKeyPair = rootKey.createChain(bobPublicKey, aliceKeyPair)
nextRootKey = rootKeyChainKeyPair[0]
nextChainKey = rootKeyChainKeyPair[1]
self.assertEqual(rootKey.getKeyBytes(), rootKeySeed)
self.assertEqual(nextRootKey.getKeyBytes(), nextRoot)
self.assertEqual(nextChainKey.getKey(), nextChain)
def test_ratchetingSessionAsBob(self):
bobPublic = bytearray([0x05, 0x2c, 0xb4, 0x97,
0x76, 0xb8, 0x77, 0x02,
0x05, 0x74, 0x5a, 0x3a,
0x6e, 0x24, 0xf5, 0x79,
0xcd, 0xb4, 0xba, 0x7a,
0x89, 0x04, 0x10, 0x05,
0x92, 0x8e, 0xbb, 0xad,
0xc9, 0xc0, 0x5a, 0xd4,
0x58])
bobPrivate = bytearray([0xa1, 0xca, 0xb4, 0x8f,
0x7c, 0x89, 0x3f, 0xaf,
0xa9, 0x88, 0x0a, 0x28,
0xc3, 0xb4, 0x99, 0x9d,
0x28, 0xd6, 0x32, 0x95,
0x62, 0xd2, 0x7a, 0x4e,
0xa4, 0xe2, 0x2e, 0x9f,
0xf1, 0xbd, 0xd6, 0x5a])
bobIdentityPublic = bytearray([0x05, 0xf1, 0xf4, 0x38,
0x74, 0xf6, 0x96, 0x69,
0x56, 0xc2, 0xdd, 0x47,
0x3f, 0x8f, 0xa1, 0x5a,
0xde, 0xb7, 0x1d, 0x1c,
0xb9, 0x91, 0xb2, 0x34,
0x16, 0x92, 0x32, 0x4c,
0xef, 0xb1, 0xc5, 0xe6,
0x26])
bobIdentityPrivate = bytearray([0x48, 0x75, 0xcc, 0x69,
0xdd, 0xf8, 0xea, 0x07,
0x19, 0xec, 0x94, 0x7d,
0x61, 0x08, 0x11, 0x35,
0x86, 0x8d, 0x5f, 0xd8,
0x01, 0xf0, 0x2c, 0x02,
0x25, 0xe5, 0x16, 0xdf,
0x21, 0x56, 0x60, 0x5e])
aliceBasePublic = bytearray([0x05, 0x47, 0x2d, 0x1f,
0xb1, 0xa9, 0x86, 0x2c,
0x3a, 0xf6, 0xbe, 0xac,
0xa8, 0x92, 0x02, 0x77,
0xe2, 0xb2, 0x6f, 0x4a,
0x79, 0x21, 0x3e, 0xc7,
0xc9, 0x06, 0xae, 0xb3,
0x5e, 0x03, 0xcf, 0x89,
0x50])
aliceEphemeralPublic = bytearray([0x05, 0x6c, 0x3e, 0x0d,
0x1f, 0x52, 0x02, 0x83,
0xef, 0xcc, 0x55, 0xfc,
0xa5, 0xe6, 0x70, 0x75,
0xb9, 0x04, 0x00, 0x7f,
0x18, 0x81, 0xd1, 0x51,
0xaf, 0x76, 0xdf, 0x18,
0xc5, 0x1d, 0x29, 0xd3,
0x4b])
aliceIdentityPublic = bytearray([0x05, 0xb4, 0xa8, 0x45,
0x56, 0x60, 0xad, 0xa6,
0x5b, 0x40, 0x10, 0x07,
0xf6, 0x15, 0xe6, 0x54,
0x04, 0x17, 0x46, 0x43,
0x2e, 0x33, 0x39, 0xc6,
0x87, 0x51, 0x49, 0xbc,
0xee, 0xfc, 0xb4, 0x2b,
0x4a])
senderChain = bytearray([0xd2, 0x2f, 0xd5, 0x6d, 0x3f,
0xec, 0x81, 0x9c, 0xf4, 0xc3,
0xd5, 0x0c, 0x56, 0xed, 0xfb,
0x1c, 0x28, 0x0a, 0x1b, 0x31,
0x96, 0x45, 0x37, 0xf1, 0xd1,
0x61, 0xe1, 0xc9, 0x31, 0x48,
0xe3, 0x6b])
bobIdentityKeyPublic = IdentityKey(bobIdentityPublic, 0)
bobIdentityKeyPrivate = Curve.decodePrivatePoint(bobIdentityPrivate)
bobIdentityKey = IdentityKeyPair(bobIdentityKeyPublic, bobIdentityKeyPrivate)
bobEphemeralPublicKey = Curve.decodePoint(bobPublic, 0)
bobEphemeralPrivateKey = Curve.decodePrivatePoint(bobPrivate)
bobEphemeralKey = ECKeyPair(bobEphemeralPublicKey, bobEphemeralPrivateKey)
bobBaseKey = bobEphemeralKey
aliceBasePublicKey = Curve.decodePoint(aliceBasePublic, 0)
aliceEphemeralPublicKey = Curve.decodePoint(aliceEphemeralPublic, 0)
aliceIdentityPublicKey = IdentityKey(aliceIdentityPublic, 0)
parameters = BobAxolotlParameters.newBuilder()\
.setOurIdentityKey(bobIdentityKey)\
.setOurSignedPreKey(bobBaseKey)\
.setOurRatchetKey(bobEphemeralKey)\
.setOurOneTimePreKey(None)\
.setTheirIdentityKey(aliceIdentityPublicKey)\
.setTheirBaseKey(aliceBasePublicKey)\
.create()
session = SessionState()
RatchetingSession.initializeSessionAsBob(session, 2, parameters)
self.assertEqual(session.getLocalIdentityKey(), bobIdentityKey.getPublicKey())
self.assertEqual(session.getRemoteIdentityKey(), aliceIdentityPublicKey)
self.assertEqual(session.getSenderChainKey().getKey(), senderChain)