def test_encode_int(self):
self.assertEqual(encode_int(0), b'AA==')
self.assertEqual(encode_int(2**24 - 1), b'////')
self.assertRaises(ValueError, encode_int, -1)
self.assertRaises(TypeError, encode_int, '')
self.assertRaises(TypeError, encode_int, None)
def test_encode_int(self):
self.assertEqual(encode_int(0), b"AA==")
self.assertEqual(encode_int(2 ** 24 - 1), b"////")
self.assertRaises(ValueError, encode_int, -1)
self.assertRaises(TypeError, encode_int, "")
self.assertRaises(TypeError, encode_int, None)
def fingerprint(self):
"""The identity fingerprint
A bytes string that is a hash of the public components of the keys.
"""
if self._fp is None: # Lazy hashing
h = hashlib.sha256()
h.update(encode_int(self._rsa_key.n))
h.update(encode_int(self._rsa_key.e))
h.update(encode_int(self._dsa_key.y))
h.update(encode_int(self._dsa_key.g))
h.update(encode_int(self._dsa_key.p))
self._fp = h.digest()[-Identity._FINGERPRINT_LENGTH_BYTES:]
return self._fp
