kopia lustrzana https://github.com/micropython/micropython
39 wiersze
1.2 KiB
ReStructuredText
39 wiersze
1.2 KiB
ReStructuredText
![]() |
: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 for Electronic Code Book (ECB).
|
||
|
* 2 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.
|