1/*	$OpenBSD: m_sm3.c,v 1.7 2024/04/09 13:52:41 beck Exp $	*/
2/*
3 * Copyright (c) 2018, Ribose Inc
4 *
5 * Permission to use, copy, modify, and/or distribute this software for any
6 * purpose with or without fee is hereby granted, provided that the above
7 * copyright notice and this permission notice appear in all copies.
8 *
9 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
10 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
11 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
12 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
13 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
14 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
15 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
16 */
17
18#include <openssl/opensslconf.h>
19
20#ifndef OPENSSL_NO_SM3
21#include <openssl/evp.h>
22#include <openssl/sm3.h>
23
24#ifndef OPENSSL_NO_RSA
25#include <openssl/rsa.h>
26#endif
27
28#include "evp_local.h"
29
30static int
31sm3_init(EVP_MD_CTX *ctx)
32{
33	return SM3_Init(ctx->md_data);
34}
35
36static int
37sm3_update(EVP_MD_CTX *ctx, const void *data, size_t count)
38{
39	return SM3_Update(ctx->md_data, data, count);
40}
41
42static int
43sm3_final(EVP_MD_CTX *ctx, unsigned char *md)
44{
45	return SM3_Final(md, ctx->md_data);
46}
47
48static const EVP_MD sm3_md = {
49	.type = NID_sm3,
50	.pkey_type = NID_sm3WithRSAEncryption,
51	.md_size = SM3_DIGEST_LENGTH,
52	.flags = EVP_MD_FLAG_DIGALGID_ABSENT,
53	.init = sm3_init,
54	.update = sm3_update,
55	.final = sm3_final,
56	.copy = NULL,
57	.cleanup = NULL,
58	.block_size = SM3_CBLOCK,
59	.ctx_size = sizeof(EVP_MD *) + sizeof(SM3_CTX),
60};
61
62const EVP_MD *
63EVP_sm3(void)
64{
65	return &sm3_md;
66}
67LCRYPTO_ALIAS(EVP_sm3);
68
69#endif /* OPENSSL_NO_SM3 */
70