Certification path validation algorithm: Difference between revisions

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* The public key algorithm and parameters are checked;
* The current date/time is checked against the validity period of the certificate;
* The [[revocation status]] is checked, whether by [[Certificate revocation list|CRL]], [[Online Certificate Status Protocol|OCSP]], or some other mechanism, to ensure the certificate is not revoked;
* The issuer name is checked to ensure that it equals the subject name of the previous certificate in the path;
* Name constraints are checked, to make sure the subject name is within the permitted subtrees list of all previous CA certificates and not within the excluded subtrees list of any previous CA certificate;