async def verify_signature(message):
"""Verifies a signature of a message, return True if verified, false if not"""
loop = asyncio.get_event_loop()
sig_raw = bytes(bytearray.fromhex(message["signature"]))
sig = NulsSignature(sig_raw)
sender_hash = hash_from_address(message["sender"])
(sender_chain_id, ) = struct.unpack("h", sender_hash[:2])
hash = public_key_to_hash(sig.pub_key, sender_chain_id)
address = address_from_hash(hash)
if address != message["sender"]:
LOGGER.warning("Received bad signature from %s for %s" %
(address, message["sender"]))
return False
verification = await get_verification_buffer(message)
try:
result = await run_in_executor(None, sig.verify, verification)
except Exception:
LOGGER.exception("NULS Signature verification error")
result = False
# result = sig.verify(verification)
return result
async def test_sign_data():
private_key = PrivateKey(SECRET)
sign: NulsSignature = NulsSignature.sign_data(pri_key=private_key.secret,
digest_bytes=b"x" *
(256 // 8))
assert sign
assert type(sign.pub_key) == bytes
assert type(sign.digest_bytes) == bytes
assert type(sign.sig_ser) == bytes
assert sign.ecc_type == None
def test_sign_data_deprecated():
"""Test the data signature"""
data = None
signature = NulsSignature(data=data)
delete_private_key_file()
private_key = get_fallback_private_key()
assert signature
sign_deprecated: NulsSignatureSecp256k1 = (
NulsSignatureSecp256k1.sign_data_deprecated(pri_key=private_key,
digest_bytes=b"x" *
(256 // 8)))
assert sign_deprecated
async def test_compare_sign_data():
private_key = PrivateKey(SECRET)
sign: NulsSignature = NulsSignature.sign_data(pri_key=private_key.secret,
digest_bytes=b"x" *
(256 // 8))
sign_deprecated: NulsSignatureSecp256k1 = (
NulsSignatureSecp256k1.sign_data_deprecated(pri_key=private_key.secret,
digest_bytes=b"x" *
(256 // 8)))
assert len(sign.sig_ser) == len(sign_deprecated.sig_ser)
assert sign.sig_ser == sign_deprecated.sig_ser
assert sign == sign_deprecated