Frequently Asked Questions
==========================

How can I extract a public / private key from a x509 certificate?
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The ``load_pem_x509_certificate()`` function from ``cryptography`` can be used to
extract the public or private keys from a x509 certificate in PEM format.

.. code-block:: python

    from cryptography.x509 import load_pem_x509_certificate

    cert_str = b"-----BEGIN CERTIFICATE-----MIIDETCCAfm..."
    cert_obj = load_pem_x509_certificate(cert_str)
    public_key = cert_obj.public_key()
    private_key = cert_obj.private_key()