➢ I was more talking about the parsing. Currently I have 40 LOC  to Look at X509_get1_ocsp which is in crypto/x509v3/v3_utl.c That’s in 1.0.2 and later ➢ > X509_CRL_verify. And yes, looking through to find the serial# is what you have to do. ➢ That's 1.1-specific, correct? Yes.