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-rw-r--r--docs/hazmat/backends/commoncrypto.rst5
-rw-r--r--docs/hazmat/backends/index.rst4
-rw-r--r--docs/hazmat/backends/interfaces.rst18
-rw-r--r--docs/hazmat/backends/openssl.rst10
4 files changed, 27 insertions, 10 deletions
diff --git a/docs/hazmat/backends/commoncrypto.rst b/docs/hazmat/backends/commoncrypto.rst
index 16a61337..77d6612c 100644
--- a/docs/hazmat/backends/commoncrypto.rst
+++ b/docs/hazmat/backends/commoncrypto.rst
@@ -1,9 +1,10 @@
.. hazmat::
-CommonCrypto Backend
+CommonCrypto backend
====================
-The `CommonCrypto`_ C library provided by Apple on OS X and iOS.
+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
diff --git a/docs/hazmat/backends/index.rst b/docs/hazmat/backends/index.rst
index 983a44e9..aec7a1e0 100644
--- a/docs/hazmat/backends/index.rst
+++ b/docs/hazmat/backends/index.rst
@@ -3,7 +3,7 @@
Backends
========
-Getting a Backend
+Getting a backend
-----------------
.. currentmodule:: cryptography.hazmat.backends
@@ -24,7 +24,7 @@ the libraries we use in those backends changes.
:class:`~interfaces.CipherBackend`, :class:`~interfaces.HashBackend`, and
:class:`~interfaces.HMACBackend`.
-Individual Backends
+Individual backends
-------------------
.. toctree::
diff --git a/docs/hazmat/backends/interfaces.rst b/docs/hazmat/backends/interfaces.rst
index af19fbc6..c38f818f 100644
--- a/docs/hazmat/backends/interfaces.rst
+++ b/docs/hazmat/backends/interfaces.rst
@@ -1,6 +1,6 @@
.. hazmat::
-Backend Interfaces
+Backend interfaces
==================
.. currentmodule:: cryptography.hazmat.backends.interfaces
@@ -249,6 +249,20 @@ A specific ``backend`` may provide one or more of these interfaces.
:returns:
:class:`~cryptography.hazmat.primitives.interfaces.AsymmetricVerificationContext`
+ .. method:: mgf1_hash_supported(algorithm)
+
+ Check if the specified ``algorithm`` is supported for use with
+ :class:`~cryptography.hazmat.primitives.asymmetric.padding.MGF1`
+ inside :class:`~cryptography.hazmat.primitives.asymmetric.padding.PSS`
+ padding.
+
+ :param algorithm: An instance of a
+ :class:`~cryptography.hazmat.primitives.interfaces.HashAlgorithm`
+ provider.
+
+ :returns: ``True`` if the specified ``algorithm`` is supported by this
+ backend, otherwise ``False``.
+
.. class:: OpenSSLSerializationBackend
@@ -258,7 +272,7 @@ A specific ``backend`` may provide one or more of these interfaces.
style key serialization.
.. method:: load_openssl_pem_private_key(data, password)
-
+
:param bytes data: PEM data to deserialize.
:param bytes password: The password to use if this data is encrypted.
diff --git a/docs/hazmat/backends/openssl.rst b/docs/hazmat/backends/openssl.rst
index d6351c9c..fdfadf0b 100644
--- a/docs/hazmat/backends/openssl.rst
+++ b/docs/hazmat/backends/openssl.rst
@@ -1,9 +1,11 @@
.. hazmat::
-OpenSSL Backend
+OpenSSL backend
===============
-The `OpenSSL`_ C library.
+The `OpenSSL`_ C library. Cryptography supports version ``0.9.8e`` (present in
+Red Hat Enterprise Linux 5) and greater. Earlier versions may work but are
+**not tested or supported**.
.. data:: cryptography.hazmat.backends.openssl.backend
@@ -32,7 +34,7 @@ The `OpenSSL`_ C library.
This will activate the default OpenSSL CSPRNG.
-OS Random Engine
+OS random engine
----------------
OpenSSL uses a user-space CSPRNG that is seeded from system random (
@@ -56,7 +58,7 @@ When importing only the binding it is added to the engine list but
**not activated**.
-OS Random Sources
+OS random sources
-----------------
On OS X and FreeBSD ``/dev/urandom`` is an alias for ``/dev/random`` and