def test_signing_parity(self):
key1 = ECDSAECKey(private_key, ALGORITHMS.ES256)
public_key = key1.public_key().to_pem()
vkey1 = ECDSAECKey(public_key, ALGORITHMS.ES256)
key2 = CryptographyECKey(private_key, ALGORITHMS.ES256)
vkey2 = CryptographyECKey(public_key, ALGORITHMS.ES256)
msg = b'test'
sig1 = key1.sign(msg)
sig2 = key2.sign(msg)
assert vkey1.verify(msg, sig1)
assert vkey1.verify(msg, sig2)
assert vkey2.verify(msg, sig1)
assert vkey2.verify(msg, sig2)
# invalid signature
assert not vkey2.verify(msg, b'n' * 64)
def test_key_too_short(self):
priv_key = ecdsa.SigningKey.generate(curve=ecdsa.NIST256p).to_pem()
key = CryptographyECKey(priv_key, ALGORITHMS.ES512)
with pytest.raises(TypeError):
key.sign('foo')