1.4 KiB
cryptolib
-- cryptographic
ciphers
cryptolib
Classes
__init__(key, mode, [IV])
Initialize cipher object, suitable for encryption/decryption. Note: after initialization, cipher object can be use only either for encryption or decryption. Running decrypt() operation after encrypt() or vice versa is not supported.
Parameters are:
key is an encryption/decryption key (bytes-like).
mode is:
1
(orcryptolib.MODE_ECB
if it exists) for Electronic Code Book (ECB).2
(orcryptolib.MODE_CBC
if it exists) for Cipher Block Chaining (CBC).6
(orcryptolib.MODE_CTR
if it exists) for Counter mode (CTR).IV is an initialization vector for CBC mode.
For Counter mode, IV is the initial value for the counter.
encrypt(in_buf, [out_buf])
Encrypt in_buf. If no out_buf is given result is returned as a newly allocated bytes object. Otherwise, result is written into mutable buffer out_buf. in_buf and out_buf can also refer to the same mutable buffer, in which case data is encrypted in-place.
decrypt(in_buf, [out_buf])
Like encrypt(), but for decryption.