*p++ = OSSL_PARAM_construct_utf8_string(OSSL_KDF_PARAM_DIGEST,
(char *)mdname, 0);
*p = OSSL_PARAM_construct_end();
- if (EVP_KDF_CTX_set_params(kctx, params) != 1
- || EVP_KDF_derive(kctx, out, keylen) != 1)
+ if (EVP_KDF_derive(kctx, out, keylen, params) != 1)
rv = 0;
EVP_KDF_CTX_free(kctx);