I'm trying to verify a certificate using OCSP protocol that is issued by Wisekey. I used OCSP_resp_find_status function to find certificate end user's status: OCSP_resp_find_status(basic, id, &status, &reason, &producedAt,&thisUpdate, &nextUpdate) ; This above function return 0 (V_OCSP_CERTSTATUS_GOOD - This mean that the certificate is valid. But sometime the fuction return 2 (V_OCSP_CERTSTATUS_UNKNOWN). I don't known why sometime the result is different with the same OCSP URL. Anyone can explain me? Thanks!
