1/*
2 * Copyright 1995-2023 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License"). You may not use
5 * this file except in compliance with the License. You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10#ifndef OPENSSL_SHA_H
11# define OPENSSL_SHA_H
12# pragma once
13
14# include <openssl/macros.h>
15# ifndef OPENSSL_NO_DEPRECATED_3_0
16# define HEADER_SHA_H
17# endif
18
19# include <openssl/e_os2.h>
20# include <stddef.h>
21
22# ifdef __cplusplus
23extern "C" {
24# endif
25
26# define SHA_DIGEST_LENGTH 20
27
28# ifndef OPENSSL_NO_DEPRECATED_3_0
29/*-
30 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
31 * ! SHA_LONG has to be at least 32 bits wide. !
32 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
33 */
34# define SHA_LONG unsigned int
35
36# define SHA_LBLOCK 16
37# define SHA_CBLOCK (SHA_LBLOCK*4)/* SHA treats input data as a
38 * contiguous array of 32 bit wide
39 * big-endian values. */
40# define SHA_LAST_BLOCK (SHA_CBLOCK-8)
41
42typedef struct SHAstate_st {
43 SHA_LONG h0, h1, h2, h3, h4;
44 SHA_LONG Nl, Nh;
45 SHA_LONG data[SHA_LBLOCK];
46 unsigned int num;
47} SHA_CTX;
48
49OSSL_DEPRECATEDIN_3_0 int SHA1_Init(SHA_CTX *c);
50OSSL_DEPRECATEDIN_3_0 int SHA1_Update(SHA_CTX *c, const void *data, size_t len);
51OSSL_DEPRECATEDIN_3_0 int SHA1_Final(unsigned char *md, SHA_CTX *c);
52OSSL_DEPRECATEDIN_3_0 void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
53# endif
54
55unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md);
56
57# ifndef OPENSSL_NO_DEPRECATED_3_0
58# define SHA256_CBLOCK (SHA_LBLOCK*4)/* SHA-256 treats input data as a
59 * contiguous array of 32 bit wide
60 * big-endian values. */
61
62typedef struct SHA256state_st {
63 SHA_LONG h[8];
64 SHA_LONG Nl, Nh;
65 SHA_LONG data[SHA_LBLOCK];
66 unsigned int num, md_len;
67} SHA256_CTX;
68
69OSSL_DEPRECATEDIN_3_0 int SHA224_Init(SHA256_CTX *c);
70OSSL_DEPRECATEDIN_3_0 int SHA224_Update(SHA256_CTX *c,
71 const void *data, size_t len);
72OSSL_DEPRECATEDIN_3_0 int SHA224_Final(unsigned char *md, SHA256_CTX *c);
73OSSL_DEPRECATEDIN_3_0 int SHA256_Init(SHA256_CTX *c);
74OSSL_DEPRECATEDIN_3_0 int SHA256_Update(SHA256_CTX *c,
75 const void *data, size_t len);
76OSSL_DEPRECATEDIN_3_0 int SHA256_Final(unsigned char *md, SHA256_CTX *c);
77OSSL_DEPRECATEDIN_3_0 void SHA256_Transform(SHA256_CTX *c,
78 const unsigned char *data);
79# endif
80
81unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md);
82unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md);
83
84# define SHA256_192_DIGEST_LENGTH 24
85# define SHA224_DIGEST_LENGTH 28
86# define SHA256_DIGEST_LENGTH 32
87# define SHA384_DIGEST_LENGTH 48
88# define SHA512_DIGEST_LENGTH 64
89
90# ifndef OPENSSL_NO_DEPRECATED_3_0
91/*
92 * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
93 * being exactly 64-bit wide. See Implementation Notes in sha512.c
94 * for further details.
95 */
96/*
97 * SHA-512 treats input data as a
98 * contiguous array of 64 bit
99 * wide big-endian values.
100 */
101# define SHA512_CBLOCK (SHA_LBLOCK*8)
102# if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
103# define SHA_LONG64 unsigned __int64
104# elif defined(__arch64__)
105# define SHA_LONG64 unsigned long
106# else
107# define SHA_LONG64 unsigned long long
108# endif
109
110typedef struct SHA512state_st {
111 SHA_LONG64 h[8];
112 SHA_LONG64 Nl, Nh;
113 union {
114 SHA_LONG64 d[SHA_LBLOCK];
115 unsigned char p[SHA512_CBLOCK];
116 } u;
117 unsigned int num, md_len;
118} SHA512_CTX;
119
120OSSL_DEPRECATEDIN_3_0 int SHA384_Init(SHA512_CTX *c);
121OSSL_DEPRECATEDIN_3_0 int SHA384_Update(SHA512_CTX *c,
122 const void *data, size_t len);
123OSSL_DEPRECATEDIN_3_0 int SHA384_Final(unsigned char *md, SHA512_CTX *c);
124OSSL_DEPRECATEDIN_3_0 int SHA512_Init(SHA512_CTX *c);
125OSSL_DEPRECATEDIN_3_0 int SHA512_Update(SHA512_CTX *c,
126 const void *data, size_t len);
127OSSL_DEPRECATEDIN_3_0 int SHA512_Final(unsigned char *md, SHA512_CTX *c);
128OSSL_DEPRECATEDIN_3_0 void SHA512_Transform(SHA512_CTX *c,
129 const unsigned char *data);
130# endif
131
132unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md);
133unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md);
134
135# ifdef __cplusplus
136}
137# endif
138
139#endif
140