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sha.h
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1 /* crypto/sha/sha.h */
2 /* Copyright (C) 1995-1998 Eric Young ([email protected])
3  * All rights reserved.
4  *
5  * This package is an SSL implementation written
6  * by Eric Young ([email protected]).
7  * The implementation was written so as to conform with Netscapes SSL.
8  *
9  * This library is free for commercial and non-commercial use as long as
10  * the following conditions are aheared to. The following conditions
11  * apply to all code found in this distribution, be it the RC4, RSA,
12  * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13  * included with this distribution is covered by the same copyright terms
14  * except that the holder is Tim Hudson ([email protected]).
15  *
16  * Copyright remains Eric Young's, and as such any Copyright notices in
17  * the code are not to be removed.
18  * If this package is used in a product, Eric Young should be given attribution
19  * as the author of the parts of the library used.
20  * This can be in the form of a textual message at program startup or
21  * in documentation (online or textual) provided with the package.
22  *
23  * Redistribution and use in source and binary forms, with or without
24  * modification, are permitted provided that the following conditions
25  * are met:
26  * 1. Redistributions of source code must retain the copyright
27  * notice, this list of conditions and the following disclaimer.
28  * 2. Redistributions in binary form must reproduce the above copyright
29  * notice, this list of conditions and the following disclaimer in the
30  * documentation and/or other materials provided with the distribution.
31  * 3. All advertising materials mentioning features or use of this software
32  * must display the following acknowledgement:
33  * "This product includes cryptographic software written by
34  * Eric Young ([email protected])"
35  * The word 'cryptographic' can be left out if the rouines from the library
36  * being used are not cryptographic related :-).
37  * 4. If you include any Windows specific code (or a derivative thereof) from
38  * the apps directory (application code) you must include an acknowledgement:
39  * "This product includes software written by Tim Hudson ([email protected])"
40  *
41  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44  * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51  * SUCH DAMAGE.
52  *
53  * The licence and distribution terms for any publically available version or
54  * derivative of this code cannot be changed. i.e. this code cannot simply be
55  * copied and put under another distribution licence
56  * [including the GNU Public Licence.]
57  */
58 
59 #ifndef HEADER_SHA_H
60 #define HEADER_SHA_H
61 
62 #include <openssl/e_os2.h>
63 #include <stddef.h>
64 
65 #ifdef __cplusplus
66 extern "C" {
67 #endif
68 
69 #if defined(OPENSSL_NO_SHA) || (defined(OPENSSL_NO_SHA0) && defined(OPENSSL_NO_SHA1))
70 #error SHA is disabled.
71 #endif
72 
73 #if defined(OPENSSL_FIPS)
74 #define FIPS_SHA_SIZE_T size_t
75 #endif
76 
77 /*
78  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
79  * ! SHA_LONG has to be at least 32 bits wide. If it's wider, then !
80  * ! SHA_LONG_LOG2 has to be defined along. !
81  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
82  */
83 
84 #if defined(__LP32__)
85 #define SHA_LONG unsigned long
86 #elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
87 #define SHA_LONG unsigned long
88 #define SHA_LONG_LOG2 3
89 #else
90 #define SHA_LONG unsigned int
91 #endif
92 
93 #define SHA_LBLOCK 16
94 #define SHA_CBLOCK (SHA_LBLOCK*4) /* SHA treats input data as a
95  * contiguous array of 32 bit
96  * wide big-endian values. */
97 #define SHA_LAST_BLOCK (SHA_CBLOCK-8)
98 #define SHA_DIGEST_LENGTH 20
99 
100 typedef struct SHAstate_st
101  {
102  SHA_LONG h0,h1,h2,h3,h4;
103  SHA_LONG Nl,Nh;
104  SHA_LONG data[SHA_LBLOCK];
105  unsigned int num;
106  } SHA_CTX;
107 
108 #ifndef OPENSSL_NO_SHA0
109 #ifdef OPENSSL_FIPS
110 int private_SHA_Init(SHA_CTX *c);
111 #endif
112 int SHA_Init(SHA_CTX *c);
113 int SHA_Update(SHA_CTX *c, const void *data, size_t len);
114 int SHA_Final(unsigned char *md, SHA_CTX *c);
115 unsigned char *SHA(const unsigned char *d, size_t n, unsigned char *md);
116 void SHA_Transform(SHA_CTX *c, const unsigned char *data);
117 #endif
118 #ifndef OPENSSL_NO_SHA1
119 #ifdef OPENSSL_FIPS
120 int private_SHA1_Init(SHA_CTX *c);
121 #endif
122 int SHA1_Init(SHA_CTX *c);
123 int SHA1_Update(SHA_CTX *c, const void *data, size_t len);
124 int SHA1_Final(unsigned char *md, SHA_CTX *c);
125 unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md);
126 void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
127 #endif
128 
129 #define SHA256_CBLOCK (SHA_LBLOCK*4) /* SHA-256 treats input data as a
130  * contiguous array of 32 bit
131  * wide big-endian values. */
132 #define SHA224_DIGEST_LENGTH 28
133 #define SHA256_DIGEST_LENGTH 32
134 
135 typedef struct SHA256state_st
136  {
137  SHA_LONG h[8];
138  SHA_LONG Nl,Nh;
139  SHA_LONG data[SHA_LBLOCK];
140  unsigned int num,md_len;
141  } SHA256_CTX;
142 
143 #ifndef OPENSSL_NO_SHA256
144 #ifdef OPENSSL_FIPS
145 int private_SHA224_Init(SHA256_CTX *c);
146 int private_SHA256_Init(SHA256_CTX *c);
147 #endif
148 int SHA224_Init(SHA256_CTX *c);
149 int SHA224_Update(SHA256_CTX *c, const void *data, size_t len);
150 int SHA224_Final(unsigned char *md, SHA256_CTX *c);
151 unsigned char *SHA224(const unsigned char *d, size_t n,unsigned char *md);
152 int SHA256_Init(SHA256_CTX *c);
153 int SHA256_Update(SHA256_CTX *c, const void *data, size_t len);
154 int SHA256_Final(unsigned char *md, SHA256_CTX *c);
155 unsigned char *SHA256(const unsigned char *d, size_t n,unsigned char *md);
156 void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
157 #endif
158 
159 #define SHA384_DIGEST_LENGTH 48
160 #define SHA512_DIGEST_LENGTH 64
161 
162 #ifndef OPENSSL_NO_SHA512
163 /*
164  * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
165  * being exactly 64-bit wide. See Implementation Notes in sha512.c
166  * for further details.
167  */
168 #define SHA512_CBLOCK (SHA_LBLOCK*8) /* SHA-512 treats input data as a
169  * contiguous array of 64 bit
170  * wide big-endian values. */
171 #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
172 #define SHA_LONG64 unsigned __int64
173 #define U64(C) C##UI64
174 #elif defined(__arch64__)
175 #define SHA_LONG64 unsigned long
176 #define U64(C) C##UL
177 #else
178 #define SHA_LONG64 unsigned long long
179 #define U64(C) C##ULL
180 #endif
181 
182 typedef struct SHA512state_st
183  {
184  SHA_LONG64 h[8];
185  SHA_LONG64 Nl,Nh;
186  union {
187  SHA_LONG64 d[SHA_LBLOCK];
188  unsigned char p[SHA512_CBLOCK];
189  } u;
190  unsigned int num,md_len;
191  } SHA512_CTX;
192 #endif
193 
194 #ifndef OPENSSL_NO_SHA512
195 #ifdef OPENSSL_FIPS
196 int private_SHA384_Init(SHA512_CTX *c);
197 int private_SHA512_Init(SHA512_CTX *c);
198 #endif
199 int SHA384_Init(SHA512_CTX *c);
200 int SHA384_Update(SHA512_CTX *c, const void *data, size_t len);
201 int SHA384_Final(unsigned char *md, SHA512_CTX *c);
202 unsigned char *SHA384(const unsigned char *d, size_t n,unsigned char *md);
203 int SHA512_Init(SHA512_CTX *c);
204 int SHA512_Update(SHA512_CTX *c, const void *data, size_t len);
205 int SHA512_Final(unsigned char *md, SHA512_CTX *c);
206 unsigned char *SHA512(const unsigned char *d, size_t n,unsigned char *md);
207 void SHA512_Transform(SHA512_CTX *c, const unsigned char *data);
208 #endif
209 
210 #ifdef __cplusplus
211 }
212 #endif
213 
214 #endif
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