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Diffstat (limited to 'docs/hazmat/backends/openssl.rst')
-rw-r--r-- | docs/hazmat/backends/openssl.rst | 36 |
1 files changed, 9 insertions, 27 deletions
diff --git a/docs/hazmat/backends/openssl.rst b/docs/hazmat/backends/openssl.rst index a1f2d28a..4db3972d 100644 --- a/docs/hazmat/backends/openssl.rst +++ b/docs/hazmat/backends/openssl.rst @@ -7,37 +7,19 @@ The `OpenSSL`_ C library. .. data:: cryptography.hazmat.backends.openssl.backend - This is the exposed API for the OpenSSL backend. It has one public attribute. + This is the exposed API for the OpenSSL backend. - .. attribute:: name - - The string name of this backend: ``"openssl"`` - -Using your own OpenSSL on Linux -------------------------------- + It implements the following interfaces: -Python links to OpenSSL for its own purposes and this can sometimes cause -problems when you wish to use a different version of OpenSSL with cryptography. -If you want to use cryptography with your own build of OpenSSL you will need to -make sure that the build is configured correctly so that your version of -OpenSSL doesn't conflict with Python's. + * :class:`~cryptography.hazmat.backends.interfaces.CipherBackend` + * :class:`~cryptography.hazmat.backends.interfaces.HashBackend` + * :class:`~cryptography.hazmat.backends.interfaces.HMACBackend` + * :class:`~cryptography.hazmat.backends.interfaces.PBKDF2HMACBackend` -The options you need to add allow the linker to identify every symbol correctly -even when multiple versions of the library are linked into the same program. If -you are using your distribution's source packages these will probably be -patched in for you already, otherwise you'll need to use options something like -this when configuring OpenSSL:: + It has one additional public attribute. - ./config -Wl,--version-script=openssl.ld -Wl,-Bsymbolic-functions -fPIC shared - -You'll also need to generate your own ``openssl.ld`` file. For example:: - - OPENSSL_1.0.1F_CUSTOM { - global: - *; - }; + .. attribute:: name -You should replace the version string on the first line as appropriate for your -build. + The string name of this backend: ``"openssl"`` .. _`OpenSSL`: https://www.openssl.org/ |