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Diffstat (limited to 'docs/hazmat/backends/multibackend.rst')
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1 files changed, 0 insertions, 45 deletions
diff --git a/docs/hazmat/backends/multibackend.rst b/docs/hazmat/backends/multibackend.rst deleted file mode 100644 index 0aae04a7..00000000 --- a/docs/hazmat/backends/multibackend.rst +++ /dev/null @@ -1,45 +0,0 @@ -.. 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 - that offers the combined features of all of its constituents. - - .. testsetup:: - - from cryptography import utils - from cryptography.exceptions import UnsupportedAlgorithm, _Reasons - from cryptography.hazmat.backends.interfaces import HashBackend - from cryptography.hazmat.backends.openssl.backend import backend as backend2 - - @utils.register_interface(HashBackend) - class DummyHashBackend(object): - def hash_supported(self, algorithm): - return False - - def create_hash_ctx(self, algorithm): - raise UnsupportedAlgorithm("", _Reasons.UNSUPPORTED_HASH) - - backend1 = DummyHashBackend() - - .. doctest:: - - >>> from cryptography.hazmat.backends.multibackend import MultiBackend - >>> from cryptography.hazmat.primitives import hashes - >>> backend1.hash_supported(hashes.SHA256()) - False - >>> backend2.hash_supported(hashes.SHA256()) - True - >>> multi_backend = MultiBackend([backend1, backend2]) - >>> multi_backend.hash_supported(hashes.SHA256()) - True - - :param backends: A ``list`` of backend objects. Backends are checked for - feature support in the order they appear in this list. |