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* deleted old version wolfSSL before updating * updated wolfSSL to the latest version(v4.4.0) * updated wolfSSL to the latest version(v4.4.0) * added macros for timing resistance Co-authored-by: RichardBarry <3073890+RichardBarry@users.noreply.github.com> Co-authored-by: Ming Yue <mingyue86010@gmail.com>
42 lines
962 B
ReStructuredText
42 lines
962 B
ReStructuredText
Symmetric Key Algorithms
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========================
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.. module:: wolfcrypt.ciphers
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**Symmetric key algorithms** are encryption algorithms that use the **same
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cryptographic keys** for both encryption and decryption of data.
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This operation is also known as **Symmetric Key Encryption**.
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``wolfcrypt`` provides access to the following **Symmetric Key Ciphers**:
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Symmetric Key Encryption Classes
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--------------------------------
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Interface
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~~~~~~~~~
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All **Symmetric Key Ciphers** available in this module implements the following
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interface:
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.. autoclass:: _Cipher
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:members:
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Classes
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~~~~~~~
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.. autoclass:: Aes
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Example
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-------
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.. doctest::
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>>> from wolfcrypt.ciphers import Aes, MODE_CBC
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>>>
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>>> cipher = Aes(b'0123456789abcdef', MODE_CBC, b'1234567890abcdef')
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>>> ciphertext = cipher.encrypt('now is the time ')
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>>> ciphertext
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b'\x95\x94\x92W_B\x81S,\xcc\x9dFw\xa23\xcb'
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>>> cipher.decrypt(ciphertext)
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b'now is the time '
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