certificate_utils.py 文件源码

def update(self, certificate):
        """Process the certificate to be verified.

        Raises an exception if the certificate is invalid. Stores it
        otherwise.

        :param certificate: the cryptography certificate to be verified
        :raises: SignatureVerificationError if the certificate is not of the
                 right type or if it is outside its valid date range.
        """
        if not isinstance(certificate, x509.Certificate):
            raise exception.SignatureVerificationError(
                "The certificate must be an x509.Certificate object."
            )

        if self._enforce_valid_dates:
            if not is_within_valid_dates(certificate):
                raise exception.SignatureVerificationError(
                    "The certificate is outside its valid date range."
                )

        self._signed_certificate = certificate