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 | .. hazmat::
CommonCrypto backend
====================
The `CommonCrypto`_ C library provided by Apple on OS X and iOS. The
CommonCrypto backend is only supported on OS X versions 10.8 and above.
.. currentmodule:: cryptography.hazmat.backends.commoncrypto.backend
.. versionadded:: 0.2
.. data:: cryptography.hazmat.backends.commoncrypto.backend
    This is the exposed API for the CommonCrypto backend.
    It implements the following interfaces:
    * :class:`~cryptography.hazmat.backends.interfaces.CipherBackend`
    * :class:`~cryptography.hazmat.backends.interfaces.HashBackend`
    * :class:`~cryptography.hazmat.backends.interfaces.HMACBackend`
    * :class:`~cryptography.hazmat.backends.interfaces.PBKDF2HMACBackend`
    It has one additional public attribute.
    .. attribute:: name
        The string name of this backend: ``"commoncrypto"``
.. _`CommonCrypto`: https://developer.apple.com/library/mac/documentation/Darwin/Reference/ManPages/man3/Common%20Crypto.3cc.html
 |