1/*
2 * Copyright 2017-2021 The OpenSSL Project Authors. All Rights Reserved.
3 * Copyright 2017 Ribose Inc. All Rights Reserved.
4 *
5 * Licensed under the Apache License 2.0 (the "License").  You may not use
6 * this file except in compliance with the License.  You can obtain a copy
7 * in the file LICENSE in the source distribution or at
8 * https://www.openssl.org/source/license.html
9 */
10
11/* This header can move into provider when legacy support is removed */
12#ifndef OSSL_INTERNAL_SM3_H
13# define OSSL_INTERNAL_SM3_H
14# pragma once
15
16# include <openssl/opensslconf.h>
17
18# ifdef OPENSSL_NO_SM3
19#  error SM3 is disabled.
20# endif
21
22# define SM3_DIGEST_LENGTH 32
23# define SM3_WORD unsigned int
24
25# define SM3_CBLOCK      64
26# define SM3_LBLOCK      (SM3_CBLOCK/4)
27
28typedef struct SM3state_st {
29   SM3_WORD A, B, C, D, E, F, G, H;
30   SM3_WORD Nl, Nh;
31   SM3_WORD data[SM3_LBLOCK];
32   unsigned int num;
33} SM3_CTX;
34
35int ossl_sm3_init(SM3_CTX *c);
36int ossl_sm3_update(SM3_CTX *c, const void *data, size_t len);
37int ossl_sm3_final(unsigned char *md, SM3_CTX *c);
38
39#endif /* OSSL_INTERNAL_SM3_H */
40