From e6ed77ce83a37dd4fffb8ac560ae34fbee8acc22 Mon Sep 17 00:00:00 2001 From: Victor Shyba Date: Wed, 15 Feb 2017 17:43:17 -0300 Subject: [tests] add tests for preamble encoding --- testing/tests/client/test_crypto.py | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) (limited to 'testing/tests') diff --git a/testing/tests/client/test_crypto.py b/testing/tests/client/test_crypto.py index 5411a4e8..852448e0 100644 --- a/testing/tests/client/test_crypto.py +++ b/testing/tests/client/test_crypto.py @@ -235,6 +235,37 @@ class SoledadCryptoAESTestCase(BaseSoledadTest): _crypto.decrypt_sym(cyphertext, wrongkey, iv) +class PreambleTestCase(unittest.TestCase): + class doc_info: + doc_id = 'D-deadbeef' + rev = '397932e0c77f45fcb7c3732930e7e9b2:1' + + def setUp(self): + inf = BytesIO(snowden1) + self.blob = _crypto.BlobEncryptor( + self.doc_info, inf, + secret='A' * 96) + + def test_preamble_starts_with_magic_signature(self): + preamble = self.blob._encode_preamble() + assert preamble.startswith(_crypto.BLOB_SIGNATURE_MAGIC) + + def test_preamble_has_cipher_metadata(self): + preamble = self.blob._encode_preamble() + unpacked = _crypto.PACMAN.unpack(preamble) + encryption_scheme, encryption_method = unpacked[1:3] + assert encryption_scheme in _crypto.ENC_SCHEME + assert encryption_method in _crypto.ENC_METHOD + assert unpacked[4] == self.blob.iv + + def test_preamble_has_document_sync_metadata(self): + preamble = self.blob._encode_preamble() + unpacked = _crypto.PACMAN.unpack(preamble) + doc_id, doc_rev = unpacked[5:] + assert doc_id == self.doc_info.doc_id + assert doc_rev == self.doc_info.rev + + def _aes_encrypt(key, iv, data): backend = default_backend() cipher = Cipher(algorithms.AES(key), modes.GCM(iv), backend=backend) -- cgit v1.2.3