49 lines
1.6 KiB
ReStructuredText
49 lines
1.6 KiB
ReStructuredText
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Certifi: Python SSL Certificates
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================================
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`Certifi`_ is a carefully curated collection of Root Certificates for
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validating the trustworthiness of SSL certificates while verifying the identity
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of TLS hosts. It has been extracted from the `Requests`_ project.
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Installation
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------------
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``certifi`` is available on PyPI. Simply install it with ``pip``::
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$ pip install certifi
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Usage
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-----
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To reference the installed certificate authority (CA) bundle, you can use the
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built-in function::
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>>> import certifi
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>>> certifi.where()
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'/usr/local/lib/python2.7/site-packages/certifi/cacert.pem'
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Enjoy!
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1024-bit Root Certificates
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~~~~~~~~~~~~~~~~~~~~~~~~~~
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Browsers and certificate authorities have concluded that 1024-bit keys are
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unacceptably weak for certificates, particularly root certificates. For this
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reason, Mozilla has removed any weak (i.e. 1024-bit key) certificate from its
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bundle, replacing it with an equivalent strong (i.e. 2048-bit or greater key)
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certificate from the same CA. Because Mozilla removed these certificates from
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its bundle, ``certifi`` removed them as well.
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In previous versions, ``certifi`` provided the ``certifi.old_where()`` function
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to intentionally re-add the 1024-bit roots back into your bundle. This was not
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recommended in production and therefore was removed. To assist in migrating old
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code, the function ``certifi.old_where()`` continues to exist as an alias of
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``certifi.where()``. Please update your code to use ``certifi.where()``
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instead. ``certifi.old_where()`` will be removed in 2018.
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.. _`Certifi`: http://certifi.io/en/latest/
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.. _`Requests`: http://docs.python-requests.org/en/latest/
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