OCSP_id_get0_info
OCSP_id_get0_info(NULL, &cert_id_md_oid, NULL, NULL, cid);
OCSP_id_get0_info(NULL, NULL, NULL, &serial, cid);
int OCSP_id_get0_info(ASN1_OCTET_STRING **piNameHash, ASN1_OBJECT **pmd,