If I implement a PKI with multiple levels of CAs, do I need to have a CRL for each individual CA or can I just have one CRL for the entire hierarchy (i.e. point all certificates to a single CRL), or only a few at the upper levels of the hierarchy?


Each CA will need to publish its own CRL.

The reason that it's not possible from a technical perspective to combine multiple CRLs is that each CRL needs to be cryptographically signed by the CA that generated it, so it's a 1-CA-to-1-CRL relationship.

  • 1
    It is quite common to publish all the CRLs to the same website, though - as long as that location is the location specified in the CDP of any issued certificates. – TristanK Mar 26 '11 at 14:19

Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.