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      1 /* crypto/sha/sha.h */
      2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com)
      3  * All rights reserved.
      4  *
      5  * This package is an SSL implementation written
      6  * by Eric Young (eay (at) cryptsoft.com).
      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 (tjh (at) cryptsoft.com).
     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 (eay (at) cryptsoft.com)"
     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 (tjh (at) cryptsoft.com)"
     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 int SHA_Init(SHA_CTX *c);
    110 int SHA_Update(SHA_CTX *c, const void *data, size_t len);
    111 int SHA_Final(unsigned char *md, SHA_CTX *c);
    112 unsigned char *SHA(const unsigned char *d, size_t n, unsigned char *md);
    113 void SHA_Transform(SHA_CTX *c, const unsigned char *data);
    114 #endif
    115 #ifndef OPENSSL_NO_SHA1
    116 int SHA1_Init(SHA_CTX *c);
    117 int SHA1_Update(SHA_CTX *c, const void *data, size_t len);
    118 int SHA1_Final(unsigned char *md, SHA_CTX *c);
    119 unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md);
    120 void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
    121 #endif
    122 
    123 #define SHA256_CBLOCK	(SHA_LBLOCK*4)	/* SHA-256 treats input data as a
    124 					 * contiguous array of 32 bit
    125 					 * wide big-endian values. */
    126 #define SHA224_DIGEST_LENGTH	28
    127 #define SHA256_DIGEST_LENGTH	32
    128 
    129 typedef struct SHA256state_st
    130 	{
    131 	SHA_LONG h[8];
    132 	SHA_LONG Nl,Nh;
    133 	SHA_LONG data[SHA_LBLOCK];
    134 	unsigned int num,md_len;
    135 	} SHA256_CTX;
    136 
    137 #ifndef OPENSSL_NO_SHA256
    138 int SHA224_Init(SHA256_CTX *c);
    139 int SHA224_Update(SHA256_CTX *c, const void *data, size_t len);
    140 int SHA224_Final(unsigned char *md, SHA256_CTX *c);
    141 unsigned char *SHA224(const unsigned char *d, size_t n,unsigned char *md);
    142 int SHA256_Init(SHA256_CTX *c);
    143 int SHA256_Update(SHA256_CTX *c, const void *data, size_t len);
    144 int SHA256_Final(unsigned char *md, SHA256_CTX *c);
    145 unsigned char *SHA256(const unsigned char *d, size_t n,unsigned char *md);
    146 void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
    147 #endif
    148 
    149 #define SHA384_DIGEST_LENGTH	48
    150 #define SHA512_DIGEST_LENGTH	64
    151 
    152 #ifndef OPENSSL_NO_SHA512
    153 /*
    154  * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
    155  * being exactly 64-bit wide. See Implementation Notes in sha512.c
    156  * for further details.
    157  */
    158 #define SHA512_CBLOCK	(SHA_LBLOCK*8)	/* SHA-512 treats input data as a
    159 					 * contiguous array of 64 bit
    160 					 * wide big-endian values. */
    161 #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
    162 #define SHA_LONG64 unsigned __int64
    163 #define U64(C)     C##UI64
    164 #elif defined(__arch64__)
    165 #define SHA_LONG64 unsigned long
    166 #define U64(C)     C##UL
    167 #else
    168 #define SHA_LONG64 unsigned long long
    169 #define U64(C)     C##ULL
    170 #endif
    171 
    172 typedef struct SHA512state_st
    173 	{
    174 	SHA_LONG64 h[8];
    175 	SHA_LONG64 Nl,Nh;
    176 	union {
    177 		SHA_LONG64	d[SHA_LBLOCK];
    178 		unsigned char	p[SHA512_CBLOCK];
    179 	} u;
    180 	unsigned int num,md_len;
    181 	} SHA512_CTX;
    182 #endif
    183 
    184 #ifndef OPENSSL_NO_SHA512
    185 int SHA384_Init(SHA512_CTX *c);
    186 int SHA384_Update(SHA512_CTX *c, const void *data, size_t len);
    187 int SHA384_Final(unsigned char *md, SHA512_CTX *c);
    188 unsigned char *SHA384(const unsigned char *d, size_t n,unsigned char *md);
    189 int SHA512_Init(SHA512_CTX *c);
    190 int SHA512_Update(SHA512_CTX *c, const void *data, size_t len);
    191 int SHA512_Final(unsigned char *md, SHA512_CTX *c);
    192 unsigned char *SHA512(const unsigned char *d, size_t n,unsigned char *md);
    193 void SHA512_Transform(SHA512_CTX *c, const unsigned char *data);
    194 #endif
    195 
    196 #ifdef  __cplusplus
    197 }
    198 #endif
    199 
    200 #endif
    201