1/*
2 * Copyright 1995-2016 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the OpenSSL license (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 HEADER_SHA_H
11# define HEADER_SHA_H
12
13#ifdef USE_LIBC_SHA2
14# include <sha2.h>
15#endif
16
17# include <openssl/e_os2.h>
18# include <stddef.h>
19
20#ifdef __cplusplus
21extern "C" {
22#endif
23
24/*-
25 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
26 * ! SHA_LONG has to be at least 32 bits wide. !
27 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
28 */
29# define SHA_LONG unsigned int
30
31# define SHA_LBLOCK 16
32# define SHA_CBLOCK (SHA_LBLOCK*4)/* SHA treats input data as a
33 * contiguous array of 32 bit wide
34 * big-endian values. */
35# define SHA_LAST_BLOCK (SHA_CBLOCK-8)
36# define SHA_DIGEST_LENGTH 20
37
38typedef struct SHAstate_st {
39 SHA_LONG h0, h1, h2, h3, h4;
40 SHA_LONG Nl, Nh;
41 SHA_LONG data[SHA_LBLOCK];
42 unsigned int num;
43} SHA_CTX;
44
45int SHA1_Init(SHA_CTX *c);
46int SHA1_Update(SHA_CTX *c, const void *data, size_t len);
47int SHA1_Final(unsigned char *md, SHA_CTX *c);
48unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md);
49void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
50
51#ifndef USE_LIBC_SHA2
52# define SHA256_CBLOCK (SHA_LBLOCK*4)/* SHA-256 treats input data as a
53 * contiguous array of 32 bit wide
54 * big-endian values. */
55
56typedef struct SHA256state_st {
57 SHA_LONG h[8];
58 SHA_LONG Nl, Nh;
59 SHA_LONG data[SHA_LBLOCK];
60 unsigned int num, md_len;
61} SHA256_CTX;
62
63int SHA224_Init(SHA256_CTX *c);
64int SHA224_Update(SHA256_CTX *c, const void *data, size_t len);
65int SHA224_Final(unsigned char *md, SHA256_CTX *c);
66unsigned char *SHA224(const unsigned char *d, size_t n, unsigned char *md);
67int SHA256_Init(SHA256_CTX *c);
68int SHA256_Update(SHA256_CTX *c, const void *data, size_t len);
69int SHA256_Final(unsigned char *md, SHA256_CTX *c);
70unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md);
71void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
72
73# define SHA224_DIGEST_LENGTH 28
74# define SHA256_DIGEST_LENGTH 32
75# define SHA384_DIGEST_LENGTH 48
76# define SHA512_DIGEST_LENGTH 64
77
78/*
79 * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
80 * being exactly 64-bit wide. See Implementation Notes in sha512.c
81 * for further details.
82 */
83/*
84 * SHA-512 treats input data as a
85 * contiguous array of 64 bit
86 * wide big-endian values.
87 */
88# define SHA512_CBLOCK (SHA_LBLOCK*8)
89# if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
90# define SHA_LONG64 unsigned __int64
91# define U64(C) C##UI64
92# elif defined(__arch64__)
93# define SHA_LONG64 unsigned long
94# define U64(C) C##UL
95# else
96# define SHA_LONG64 unsigned long long
97# define U64(C) C##ULL
98# endif
99
100typedef struct SHA512state_st {
101 SHA_LONG64 h[8];
102 SHA_LONG64 Nl, Nh;
103 union {
104 SHA_LONG64 d[SHA_LBLOCK];
105 unsigned char p[SHA512_CBLOCK];
106 } u;
107 unsigned int num, md_len;
108} SHA512_CTX;
109
110int SHA384_Init(SHA512_CTX *c);
111int SHA384_Update(SHA512_CTX *c, const void *data, size_t len);
112int SHA384_Final(unsigned char *md, SHA512_CTX *c);
113unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md);
114int SHA512_Init(SHA512_CTX *c);
115int SHA512_Update(SHA512_CTX *c, const void *data, size_t len);
116int SHA512_Final(unsigned char *md, SHA512_CTX *c);
117unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md);
118void SHA512_Transform(SHA512_CTX *c, const unsigned char *data);
119
120#else
121#define SHA256_CBLOCK 64
122#define SHA512_CBLOCK 128
123unsigned char *SHA256(const unsigned char *d, size_t n, unsigned char *md);
124unsigned char *SHA384(const unsigned char *d, size_t n, unsigned char *md);
125unsigned char *SHA512(const unsigned char *d, size_t n, unsigned char *md);
126#endif
127
128#ifdef __cplusplus
129}
130#endif
131
132#endif
133