.TH "page_revoke" 3 "Tue Jul 11 2017" "Version 7.4.0" "Heimdalx509library" \" -*- nroff -*- .ad l .nh .SH NAME page_revoke \- Revocation methods There are two revocation method for PKIX/X\&.509: CRL and OCSP\&. Revocation is needed if the private key is lost and stolen\&. Depending on how picky you are, you might want to make revocation for destroyed private keys too (smartcard broken), but that should not be a problem\&. .PP CRL is a list of certifiates that have expired\&. .PP OCSP is an online checking method where the requestor sends a list of certificates to the OCSP server to return a signed reply if they are valid or not\&. Some services sends a OCSP reply as part of the hand-shake to make the revoktion decision simpler/faster for the client\&.