X509_verify() X509_sign() X509_get_version() X509_get_serialNumber() X509_get_issuer() X509_get_subject() X509_get_notBefore() X509_get_notAfter() X509_get_pubkey() X509_set_version() X509_set_serialNumber() X509_set_issuer() X509_set_subject() X509_set_notBefore() X509_set_notAfter() X509_set_pubkey() X509_get_extensions() X509_set_extensions() X509_EXTENSIONS_clear() X509_EXTENSIONS_retrieve() X509_EXTENSIONS_add() X509_EXTENSIONS_delete()
