openssl/crypto/evp/m_sm3.c

/*
 * Copyright 2017 The OpenSSL Project Authors. All Rights Reserved.
 * Copyright 2017 Ribose Inc. All Rights Reserved.
 *
 * Licensed under the OpenSSL license (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#include <stdio.h>
#include "internal/cryptlib.h"

#ifndef OPENSSL_NO_SM3

# include <openssl/evp.h>
# include <openssl/objects.h>
# include <openssl/sm3.h>
# include "internal/evp_int.h"

static int init(EVP_MD_CTX *ctx)
{
    return SM3_Init(EVP_MD_CTX_md_data(ctx));
}

static int update(EVP_MD_CTX *ctx, const void *data, size_t count)
{
    return SM3_Update(EVP_MD_CTX_md_data(ctx), data, count);
}

static int final(EVP_MD_CTX *ctx, unsigned char *md)
{
    return SM3_Final(md, EVP_MD_CTX_md_data(ctx));
}

static const EVP_MD sm3_md = {
    NID_sm3,
    NID_sm3WithRSAEncryption,
    SM3_DIGEST_LENGTH,
    0,
    init,
    update,
    final,
    NULL,
    NULL,
    SM3_CBLOCK,
    sizeof(EVP_MD *) + sizeof(SM3_CTX),
};

const EVP_MD *EVP_sm3(void)
{
    return &sm3_md;
}
#endif