diff options
Diffstat (limited to 'soledad/src/leap/soledad/tests/test_crypto.py')
| -rw-r--r-- | soledad/src/leap/soledad/tests/test_crypto.py | 54 |
1 files changed, 53 insertions, 1 deletions
diff --git a/soledad/src/leap/soledad/tests/test_crypto.py b/soledad/src/leap/soledad/tests/test_crypto.py index c727a2ff..eea67b45 100644 --- a/soledad/src/leap/soledad/tests/test_crypto.py +++ b/soledad/src/leap/soledad/tests/test_crypto.py @@ -189,7 +189,7 @@ class MacAuthTestCase(BaseSoledadTest): target.decrypt_doc, self._soledad._crypto, doc) -class SoledadCryptoTestCase(BaseSoledadTest): +class SoledadCryptoAESTestCase(BaseSoledadTest): def test_encrypt_decrypt_sym(self): # generate 256-bit key @@ -239,3 +239,55 @@ class SoledadCryptoTestCase(BaseSoledadTest): cyphertext, wrongkey, iv=iv, method=crypto.EncryptionMethods.AES_256_CTR) self.assertNotEqual('data', plaintext) + + +class SoledadCryptoXSalsa20TestCase(BaseSoledadTest): + + def test_encrypt_decrypt_sym(self): + # generate 256-bit key + key = Random.new().read(32) + iv, cyphertext = self._soledad._crypto.encrypt_sym( + 'data', key, + method=crypto.EncryptionMethods.XSALSA20) + self.assertTrue(cyphertext is not None) + self.assertTrue(cyphertext != '') + self.assertTrue(cyphertext != 'data') + plaintext = self._soledad._crypto.decrypt_sym( + cyphertext, key, iv=iv, + method=crypto.EncryptionMethods.XSALSA20) + self.assertEqual('data', plaintext) + + def test_decrypt_with_wrong_iv_fails(self): + key = Random.new().read(32) + iv, cyphertext = self._soledad._crypto.encrypt_sym( + 'data', key, + method=crypto.EncryptionMethods.XSALSA20) + self.assertTrue(cyphertext is not None) + self.assertTrue(cyphertext != '') + self.assertTrue(cyphertext != 'data') + # get a different iv by changing the first byte + rawiv = binascii.a2b_base64(iv) + wrongiv = rawiv + while wrongiv == rawiv: + wrongiv = os.urandom(1) + rawiv[1:] + plaintext = self._soledad._crypto.decrypt_sym( + cyphertext, key, iv=binascii.b2a_base64(wrongiv), + method=crypto.EncryptionMethods.XSALSA20) + self.assertNotEqual('data', plaintext) + + def test_decrypt_with_wrong_key_fails(self): + key = Random.new().read(32) + iv, cyphertext = self._soledad._crypto.encrypt_sym( + 'data', key, + method=crypto.EncryptionMethods.XSALSA20) + self.assertTrue(cyphertext is not None) + self.assertTrue(cyphertext != '') + self.assertTrue(cyphertext != 'data') + wrongkey = Random.new().read(32) # 256-bits key + # ensure keys are different in case we are extremely lucky + while wrongkey == key: + wrongkey = Random.new().read(32) + plaintext = self._soledad._crypto.decrypt_sym( + cyphertext, wrongkey, iv=iv, + method=crypto.EncryptionMethods.XSALSA20) + self.assertNotEqual('data', plaintext) |