34 lines
768 B
ReStructuredText
34 lines
768 B
ReStructuredText
.. hazmat::
|
|
|
|
Backends
|
|
========
|
|
|
|
Getting a backend
|
|
-----------------
|
|
|
|
.. currentmodule:: cryptography.hazmat.backends
|
|
|
|
``cryptography`` was designed to support multiple cryptographic backends, but
|
|
consumers rarely need this flexibility. Starting with version 3.1 ``backend``
|
|
arguments are optional and the default backend will automatically be selected
|
|
if none is specified.
|
|
|
|
On older versions you can get the default backend by calling
|
|
:func:`~default_backend`.
|
|
|
|
|
|
.. function:: default_backend()
|
|
|
|
:returns: An object that provides at least
|
|
:class:`~interfaces.CipherBackend`, :class:`~interfaces.HashBackend`, and
|
|
:class:`~interfaces.HMACBackend`.
|
|
|
|
Individual backends
|
|
-------------------
|
|
|
|
.. toctree::
|
|
:maxdepth: 1
|
|
|
|
openssl
|
|
interfaces
|