docs: def verify_signature(certificate, signing_pub_key=None,
                       signing_pub_key_passphrase=None):
      '''
      Verify that ``certificate`` has been signed by ``signing_pub_key``
  
      certificate:
          The certificate to verify. Can be a path or string containing a
          PEM formatted certificate.
  
      signing_pub_key:
          The public key to verify, can be a string or path to a PEM formatted
          certificate, csr, or private key.
  
      signing_pub_key_passphrase:
          Passphrase to the signing_pub_key if it is an encrypted private key.
  
      CLI Example:
  
      .. code-block:: bash
  
          salt '*' x509.verify_signature /etc/pki/mycert.pem \\
                  signing_pub_key=/etc/pki/myca.crt
      '''
      cert = _get_certificate_obj(certificate)
  
      if signing_pub_key:
          signing_pub_key = get_public_key(signing_pub_key,
                                           passphrase=signing_pub_key_passphrase, asObj=True)
  
      return bool(cert.verify(pkey=signing_pub_key) == 1)