/*  $OpenBSD: m_sm3.c,v 1.7 2024/04/09 13:52:41 beck Exp $  */

/*

 * Copyright (c) 2018, Ribose Inc

 *

 * Permission to use, copy, modify, and/or distribute this software for any

 * purpose with or without fee is hereby granted, provided that the above

 * copyright notice and this permission notice appear in all copies.

 *

 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES

 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF

 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR

 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES

 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN

 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF

 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.

 */

#include <openssl/opensslconf.h>

#ifndef OPENSSL_NO_SM3

#include <openssl/evp.h>

#include <openssl/sm3.h>

#ifndef OPENSSL_NO_RSA

#include <openssl/rsa.h>

#endif

#include "evp_local.h"

static int

sm3_init(EVP_MD_CTX *ctx)

{

  return SM3_Init(ctx->md_data);

}

static int

sm3_update(EVP_MD_CTX *ctx, const void *data, size_t count)

{

  return SM3_Update(ctx->md_data, data, count);

}

static int

sm3_final(EVP_MD_CTX *ctx, unsigned char *md)

{

  return SM3_Final(md, ctx->md_data);

}

static const EVP_MD sm3_md = {

  .type = NID_sm3,

  .pkey_type = NID_sm3WithRSAEncryption,

  .md_size = SM3_DIGEST_LENGTH,

  .flags = EVP_MD_FLAG_DIGALGID_ABSENT,

  .init = sm3_init,

  .update = sm3_update,

  .final = sm3_final,

  .copy = NULL,

  .cleanup = NULL,

  .block_size = SM3_CBLOCK,

  .ctx_size = sizeof(EVP_MD *) + sizeof(SM3_CTX),

};

const EVP_MD *

EVP_sm3(void)

{

  return &sm3_md;

}

LCRYPTO_ALIAS(EVP_sm3);

#endif /* OPENSSL_NO_SM3 */