def test_ec():
ec_key = EC()
ec_key.load_public_key(base_path + 'ec_pubkey.bin')
assert ec_key.is_private == False
ec_key.load_private_key(base_path + 'ec_privkey.der')
assert ec_key.is_private == True
def test_signing():
ec_privkey = EC()
ec_privkey.load_private_key(base_path + 'ec_privkey.der')
msg = sha256(b'test_data')
sig = ec_privkey.sign(msg)
ec_key = EC()
ec_key.load_public_key(base_path + 'ec_pubkey.bin')
assert ec_key.verify(msg, sig)
def test_serialization():
ec_key = EC()
ec_key.load_private_key(base_path + 'ec_privkey.der')
msg = sha256(b'test_data')
sig = ec_key.sign(msg)
serial_sig = ec_key.serialize_sig(sig)
assert len(serial_sig) == 64
deserialized_sig = ec_key.deserialize_sig(serial_sig)
assert ec_key.verify(msg, deserialized_sig)
def test_puzzle_promise():
#####################################
## Key Setup
#####################################
base_path = os.path.dirname(__file__) + '/test_data/'
# Setup Tumbler keys
server_ec_path = base_path + 'server_ec_keys/'
server_ec_key = EC()
server_ec_key.load_public_key(server_ec_path + 'ec_pubkey.bin')
server_ec_key.load_private_key(server_ec_path + 'ec_privkey.der')
server_rsa_path = base_path + 'server_rsa_keys/'
rsa_key = RSA(server_rsa_path, 'test')
rsa_key.load_public_key()
# Setup Client EC key
client_ec_path = base_path + 'client_ec_keys/'
client_ec_key = EC()
client_ec_key.load_public_key(client_ec_path + 'ec_pubkey.bin')
client_ec_key.load_private_key(server_ec_path + 'ec_privkey.der')
server_ec_pubkey = EC()
server_ec_pubkey.load_public_key(server_ec_path + 'ec_pubkey.bin')
#####################################
## Puzzle Promise Protocol
#####################################
server = PuzzlePromiseServer(rsa_key, server_ec_key,
client_ec_key.get_pubkey())
client = PuzzlePromiseClient(rsa_key, server_ec_pubkey, client_ec_key)
# Step 1. Setup Escrow
redeem_script, p2sh_address = server.prepare_escrow(AMOUNT, 0)
server.set_funding_tx(FUNDING_TX)
# Steps 2 - 4 : Prepare tx set
amt = AMOUNT - FEE
tx_set, R_h, F_h = client.prepare_tx_set(redeem_script, FUNDING_TX,
ADDRESS, amt)
# Step 5: Get commitment & puzzles
commitments, puzzles = server.sign_transactions(tx_set, R_h, F_h)
# Step 6 - 7: Verify fakes
assert server.verify_fake_txs(client.salt, client.R, client.F,
client.fake_blinds)
# Step 9: Get quotients
fake_keys = server.get_fake_keys()
assert fake_keys is not None
assert client.verify_fake_signatures(commitments, puzzles, fake_keys)
# Step 9: Get quotients
quotients = server.prepare_quotients()
# print("quotients length is %d" % len(quotients))
assert len(quotients) == (server.m - 1)
# Step 10: Test quotients
assert client.verify_quotients(quotients)