from dissononce.hash.sha256 import SHA256Hash
import dissononce, logging
if __name__ == "__main__":
dissononce.logger.setLevel(logging.DEBUG)
# setup initiator and responder variables
alice_s = X25519DH().generate_keypair()
bob_s = X25519DH().generate_keypair()
# prepare handshakestate objects for initiator and responder
alice_handshakestate = HandshakeState(
SymmetricState(CipherState(AESGCMCipher()), SHA256Hash()), X25519DH())
bob_handshakestate = HandshakeState(
SymmetricState(CipherState(AESGCMCipher()), SHA256Hash()), X25519DH())
# initialize handshakestate objects
alice_handshakestate.initialize(XXHandshakePattern(), True, b'', s=alice_s)
bob_handshakestate.initialize(XXHandshakePattern(), False, b'', s=bob_s)
# -> e
message_buffer = bytearray()
alice_handshakestate.write_message(b'', message_buffer)
bob_handshakestate.read_message(bytes(message_buffer), bytearray())
# <- e, ee, s, es
message_buffer = bytearray()
bob_handshakestate.write_message(b'', message_buffer)
alice_handshakestate.read_message(bytes(message_buffer), bytearray())
# -> s, se
message_buffer = bytearray()
alice_cipherstates = alice_handshakestate.write_message(
psks = (os.urandom(32), os.urandom(32))
# prepare handshakestate objects for initiator and responder
alice_handshakestate = HandshakeState(
SymmetricState(CipherState(ChaChaPolyCipher()), Blake2sHash()),
X25519DH())
bob_handshakestate = HandshakeState(
SymmetricState(CipherState(ChaChaPolyCipher()), Blake2sHash()),
X25519DH())
# modify NNHandshakePattern
nn_psk0_pattern = PSKPatternModifier(0).modify(NNHandshakePattern())
nn_psk0_psk2_pattern = PSKPatternModifier(2).modify(nn_psk0_pattern)
# initialize handshakestate objects
alice_handshakestate.initialize(nn_psk0_psk2_pattern,
True,
b'prologue',
s=alice_s,
psks=psks)
bob_handshakestate.initialize(nn_psk0_psk2_pattern,
False,
b'prologue',
s=bob_s,
psks=psks)
# -> psk, e
message_buffer = bytearray()
alice_handshakestate.write_message(b'', message_buffer)
bob_handshakestate.read_message(bytes(message_buffer), bytearray())
# <- e, ee, psk
message_buffer = bytearray()
if __name__ == "__main__":
dissononce.logger.setLevel(logging.DEBUG)
# setup initiator and responder variables
alice_s = X25519DH().generate_keypair()
alice_rs = X25519DH().generate_keypair().public
bob_s = X25519DH().generate_keypair()
# prepare handshakestate objects for initiator and responder
alice_handshakestate = HandshakeState(
SymmetricState(CipherState(AESGCMCipher()), SHA256Hash()), X25519DH())
bob_handshakestate = HandshakeState(
SymmetricState(CipherState(AESGCMCipher()), SHA256Hash()), X25519DH())
# initialize handshakestate objects
alice_handshakestate.initialize(IKHandshakePattern(),
True,
b'',
s=alice_s,
rs=alice_rs)
bob_handshakestate.initialize(IKHandshakePattern(), False, b'', s=bob_s)
# -> e, es, s, ss
message_buffer = bytearray()
alice_handshakestate.write_message(b'', message_buffer)
try:
bob_handshakestate.read_message(bytes(message_buffer), bytearray())
except DecryptFailedException:
# bob failed to read alice's message, possibly because alice used wrong static keys for bob, will now fallback
# to XX
bob_handshakestate.initialize(FallbackPatternModifier().modify(
XXHandshakePattern()),
False,
if __name__ == "__main__":
dissononce.logger.setLevel(logging.DEBUG)
# setup initiator and responder variables
alice_s = X25519DH().generate_keypair()
bob_s = X25519DH().generate_keypair()
# prepare handshakestate objects for initiator and responder
alice_handshakestate = HandshakeState(
SymmetricState(CipherState(AESGCMCipher()), SHA256Hash()), X25519DH())
bob_handshakestate = HandshakeState(
SymmetricState(CipherState(AESGCMCipher()), SHA256Hash()), X25519DH())
# initialize handshakestate objects
alice_handshakestate.initialize(IKHandshakePattern(),
True,
b'',
s=alice_s,
rs=bob_s.public)
bob_handshakestate.initialize(IKHandshakePattern(), False, b'', s=bob_s)
# -> e, es, s, ss
message_buffer = bytearray()
alice_handshakestate.write_message(b'', message_buffer)
bob_handshakestate.read_message(bytes(message_buffer), bytearray())
# <- e, ee, se
message_buffer = bytearray()
bob_cipherstates = bob_handshakestate.write_message(b'', message_buffer)
alice_cipherstates = alice_handshakestate.read_message(
bytes(message_buffer), bytearray())