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- :mod:`ucryptolib` -- cryptographic ciphers
- ==========================================
- .. module:: ucryptolib
- :synopsis: cryptographic ciphers
- Classes
- -------
- .. class:: aes
- .. classmethod:: __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`` (or ``ucryptolib.MODE_ECB`` if it exists) for Electronic Code Book (ECB).
- * ``2`` (or ``ucryptolib.MODE_CBC`` if it exists) for Cipher Block Chaining (CBC)
- * *IV* is an initialization vector for CBC mode.
- .. method:: 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.
- .. method:: decrypt(in_buf, [out_buf])
- Like `encrypt()`, but for decryption.
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