diff options
| -rw-r--r-- | client/src/leap/soledad/client/crypto.py | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/client/src/leap/soledad/client/crypto.py b/client/src/leap/soledad/client/crypto.py index b75d4301..f7d92372 100644 --- a/client/src/leap/soledad/client/crypto.py +++ b/client/src/leap/soledad/client/crypto.py @@ -39,6 +39,8 @@ logger = logging.getLogger(__name__) MAC_KEY_LENGTH = 64 +crypto_backend = MultiBackend([OpenSSLBackend()]) + def encrypt_sym(data, key): """ @@ -59,8 +61,7 @@ def encrypt_sym(data, key): (len(key) * 8)) iv = os.urandom(16) - backend = MultiBackend([OpenSSLBackend()]) - cipher = Cipher(algorithms.AES(key), modes.CTR(iv), backend=backend) + cipher = Cipher(algorithms.AES(key), modes.CTR(iv), backend=crypto_backend) encryptor = cipher.encryptor() ciphertext = encryptor.update(data) + encryptor.finalize() @@ -87,9 +88,8 @@ def decrypt_sym(data, key, iv): soledad_assert( len(key) == 32, # 32 x 8 = 256 bits. 'Wrong key size: %s (must be 256 bits long).' % len(key)) - backend = MultiBackend([OpenSSLBackend()]) iv = binascii.a2b_base64(iv) - cipher = Cipher(algorithms.AES(key), modes.CTR(iv), backend=backend) + cipher = Cipher(algorithms.AES(key), modes.CTR(iv), backend=crypto_backend) decryptor = cipher.decryptor() return decryptor.update(data) + decryptor.finalize() |