+
+int EVP_PKEY_CTX_set_ec_paramgen_curve_name(EVP_PKEY_CTX *ctx,
+ const char *name)
+{
+ OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ OSSL_PARAM *p = params;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ if (name == NULL)
+ return -1;
+
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_EC_NAME,
+ (char *)name, 0);
+ return EVP_PKEY_CTX_set_params(ctx, params);
+}
+
+int EVP_PKEY_CTX_get_ec_paramgen_curve_name(EVP_PKEY_CTX *ctx,
+ char *name, size_t namelen)
+{
+ OSSL_PARAM params[] = { OSSL_PARAM_END, OSSL_PARAM_END };
+ OSSL_PARAM *p = params;
+
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ if (name == NULL)
+ return -1;
+
+ *p++ = OSSL_PARAM_construct_utf8_string(OSSL_PKEY_PARAM_EC_NAME,
+ name, namelen);
+ if (!EVP_PKEY_CTX_get_params(ctx, params))
+ return -1;
+ return 1;
+}
+
+#ifndef FIPS_MODE
+int EVP_PKEY_CTX_set_ec_paramgen_curve_nid(EVP_PKEY_CTX *ctx, int nid)
+{
+ if (ctx == NULL || !EVP_PKEY_CTX_IS_GEN_OP(ctx)) {
+ ERR_raise(ERR_LIB_EVP, EVP_R_COMMAND_NOT_SUPPORTED);
+ /* Uses the same return values as EVP_PKEY_CTX_ctrl */
+ return -2;
+ }
+
+ /* Legacy: if key type not EC return error */
+ if (ctx->pmeth != NULL
+ && EVP_PKEY_type(ctx->pmeth->pkey_id) != EVP_PKEY_EC)
+ return -1;
+
+ if (ctx->op.keymgmt.genctx == NULL)
+ return EVP_PKEY_CTX_ctrl(ctx, EVP_PKEY_EC,
+ EVP_PKEY_OP_PARAMGEN|EVP_PKEY_OP_KEYGEN,
+ EVP_PKEY_CTRL_EC_PARAMGEN_CURVE_NID,
+ nid, NULL);
+
+ return EVP_PKEY_CTX_set_ec_paramgen_curve_name(ctx, OBJ_nid2sn(nid));
+}
+#endif