X509_REQ_verify_ex
rv = X509_REQ_verify_ex(x, pkey, app_get0_libctx(), app_get0_propq());
if (X509_REQ_verify_ex(req, X509_REQ_get0_pubkey(req), ctx->libctx,
return X509_REQ_verify_ex(a, r, NULL, NULL);
int X509_REQ_verify_ex(X509_REQ *a, EVP_PKEY *r, OSSL_LIB_CTX *libctx,