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Diffstat (limited to 'docs/hazmat/backends/multibackend.rst')
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diff --git a/docs/hazmat/backends/multibackend.rst b/docs/hazmat/backends/multibackend.rst new file mode 100644 index 00000000..63177bef --- /dev/null +++ b/docs/hazmat/backends/multibackend.rst @@ -0,0 +1,28 @@ +.. hazmat:: + +MultiBackend +============ + +.. currentmodule:: cryptography.hazmat.backends.multibackend + +.. class:: MultiBackend(backends) + + .. versionadded:: 0.2 + + This class allows you to combine multiple backends into a single backend + which offers the combined features of all of its constituents. + + .. code-block:: pycon + + >>> from cryptography.hazmat.backends.multibackend import MultiBackend + >>> from cryptography.hazmat.primitives import hashes + >>> backend1.hash_supported(hashes.SHA256()) + False + >>> backend2.hash_supported(hashes.SHA1()) + True + >>> multi_backend = MultiBackend([backend1, backend2]) + >>> multi_backend.hash_supported(hashes.SHA1()) + True + + :param backends: A ``list`` of backend objects. Backends are checked for + feature support in the order they appear in this list. |