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)