def test_decrypt_succeeds(self): Ek, Ak = mkpasswd(test_pass) encrypted_data = encrypt(test_data, Ek, Ak).getvalue() Ek, Ak = mkpasswd(test_pass) decrypted_data = decrypt(encrypted_data, Ek, Ak).getvalue() self.assertEqual(decrypted_data, test_data)
def test_auth_fail_bad_mac(self):
"""cuts off the real MAC and puts in some bogus HMAC-SHA256 signature
that will cause decrypt() to raise an Exception."""
Ek, Ak = mkpasswd(test_data)
encrypted_data = encrypt(test_data, Ek, Ak).getvalue()
bad_mac = get_signature("bogus data", Ak)
encrypted_data = encrypted_data[:-MAC_SIZE] + bad_mac
with self.assertRaises(AuthenticationError):
decrypt(encrypted_data, Ek, Ak)
def test_mkpasswd_encrytion_key(self):
Ek, Ak = mkpasswd(test_pass)
self.assertEqual('d\xf8L\xd4S\xf1@9\x83\xa6\xfd\x83\xa9\x9c\xad\x11\xba\xd0\xb6\xfc\x15\xf6s\r\xeb\xae\\~{~\x87\xcc', Ek)
def test_mkpasswd_authentication_key(self):
Ek, Ak = mkpasswd(test_pass)
self.assertEqual('6^\x9b\xc5\xdb\xfd\x80\xe89g\xcec4V\x81\xc4\xff\xf3&\xc9\x92\x81\xc2\xe4<U\x10S\t\x12\x93\xf1', Ak)
