n_ecc.h

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/*
 * Nilorea Library
 * Copyright (C) 2005-2026 Castagnier Mickael
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
 * implied. See the License for the specific language governing
 * permissions and limitations under the License.
 *
 * SPDX-License-Identifier: Apache-2.0
 */

 
#ifndef __NILOREA_ECC_HEADER
#define __NILOREA_ECC_HEADER
 
#ifdef __cplusplus
extern "C" {
#endif
 
#include <stddef.h>

 
#ifdef HAVE_OPENSSL
 
#include "nilorea/n_openssl_compat.h"

#define N_ECC_KEY_LEN 32
#define N_ECC_SIG_LEN 64

#define N_ECC_AVAILABLE N_OSSL_HAVE_RAW_EVP_25519

int n_x25519_keypair(unsigned char* priv, unsigned char* pub);
int n_ed25519_keypair(unsigned char* priv, unsigned char* pub);
int n_x25519_derive(const unsigned char* priv, const unsigned char* peer_pub, unsigned char* shared);
int n_ed25519_sign(const unsigned char* priv, const unsigned char* msg, size_t len, unsigned char* sig);
int n_ed25519_verify(const unsigned char* pub, const unsigned char* msg, size_t len, const unsigned char* sig);
 
#endif /* HAVE_OPENSSL */

 
#ifdef __cplusplus
}
#endif
 
#endif /* __NILOREA_ECC_HEADER */