net-snmp 5.7
openssl_sha.h
00001 /* crypto/sha/sha.h */
00002 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
00003  * All rights reserved.
00004  *
00005  * This package is an SSL implementation written
00006  * by Eric Young (eay@cryptsoft.com).
00007  * The implementation was written so as to conform with Netscapes SSL.
00008  * 
00009  * This library is free for commercial and non-commercial use as long as
00010  * the following conditions are aheared to.  The following conditions
00011  * apply to all code found in this distribution, be it the RC4, RSA,
00012  * lhash, DES, etc., code; not just the SSL code.  The SSL documentation
00013  * included with this distribution is covered by the same copyright terms
00014  * except that the holder is Tim Hudson (tjh@cryptsoft.com).
00015  * 
00016  * Copyright remains Eric Young's, and as such any Copyright notices in
00017  * the code are not to be removed.
00018  * If this package is used in a product, Eric Young should be given attribution
00019  * as the author of the parts of the library used.
00020  * This can be in the form of a textual message at program startup or
00021  * in documentation (online or textual) provided with the package.
00022  * 
00023  * Redistribution and use in source and binary forms, with or without
00024  * modification, are permitted provided that the following conditions
00025  * are met:
00026  * 1. Redistributions of source code must retain the copyright
00027  *    notice, this list of conditions and the following disclaimer.
00028  * 2. Redistributions in binary form must reproduce the above copyright
00029  *    notice, this list of conditions and the following disclaimer in the
00030  *    documentation and/or other materials provided with the distribution.
00031  * 3. All advertising materials mentioning features or use of this software
00032  *    must display the following acknowledgement:
00033  *    "This product includes cryptographic software written by
00034  *     Eric Young (eay@cryptsoft.com)"
00035  *    The word 'cryptographic' can be left out if the rouines from the library
00036  *    being used are not cryptographic related :-).
00037  * 4. If you include any Windows specific code (or a derivative thereof) from 
00038  *    the apps directory (application code) you must include an acknowledgement:
00039  *    "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
00040  * 
00041  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
00042  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
00043  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
00044  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
00045  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
00046  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
00047  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
00048  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
00049  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
00050  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
00051  * SUCH DAMAGE.
00052  * 
00053  * The licence and distribution terms for any publically available version or
00054  * derivative of this code cannot be changed.  i.e. this code cannot simply be
00055  * copied and put under another distribution licence
00056  * [including the GNU Public Licence.]
00057  */
00058 
00059 #ifndef HEADER_SHA_H
00060 #define HEADER_SHA_H
00061 
00062 #include <stddef.h>
00063 
00064 #ifdef  __cplusplus
00065 extern "C" {
00066 #endif
00067 
00068 #if defined(OPENSSL_NO_SHA) || (defined(OPENSSL_NO_SHA0) && defined(OPENSSL_NO_SHA1))
00069 #error SHA is disabled.
00070 #endif
00071 
00072 #if defined(OPENSSL_FIPS)
00073 #define FIPS_SHA_SIZE_T size_t
00074 #endif
00075 
00076 /*
00077  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
00078  * ! SHA_LONG has to be at least 32 bits wide. If it's wider, then !
00079  * ! SHA_LONG_LOG2 has to be defined along.                        !
00080  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
00081  */
00082 
00083 #if defined(__LP32__)
00084 #define SHA_LONG unsigned long
00085 #elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
00086 #define SHA_LONG unsigned long
00087 #define SHA_LONG_LOG2 3
00088 #else
00089 #define SHA_LONG unsigned int
00090 #endif
00091 
00092 #define SHA_LBLOCK      16
00093 #define SHA_CBLOCK      (SHA_LBLOCK*4)  /* SHA treats input data as a
00094                                          * contiguous array of 32 bit
00095                                          * wide big-endian values. */
00096 #define SHA_LAST_BLOCK  (SHA_CBLOCK-8)
00097 #define SHA_DIGEST_LENGTH 20
00098 
00099 typedef struct SHAstate_st
00100         {
00101         SHA_LONG h0,h1,h2,h3,h4;
00102         SHA_LONG Nl,Nh;
00103         SHA_LONG data[SHA_LBLOCK];
00104         unsigned int num;
00105         } SHA_CTX;
00106 
00107 #ifndef OPENSSL_NO_SHA0
00108 int SHA_Init(SHA_CTX *c);
00109 int SHA_Update(SHA_CTX *c, const void *data, size_t len);
00110 int SHA_Final(unsigned char *md, SHA_CTX *c);
00111 unsigned char *SHA(const unsigned char *d, size_t n, unsigned char *md);
00112 void SHA_Transform(SHA_CTX *c, const unsigned char *data);
00113 #endif
00114 #ifndef OPENSSL_NO_SHA1
00115 int SHA1_Init(SHA_CTX *c);
00116 int SHA1_Update(SHA_CTX *c, const void *data, size_t len);
00117 int SHA1_Final(unsigned char *md, SHA_CTX *c);
00118 unsigned char *SHA1(const unsigned char *d, size_t n, unsigned char *md);
00119 void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
00120 #endif
00121 
00122 #define SHA256_CBLOCK   (SHA_LBLOCK*4)  /* SHA-256 treats input data as a
00123                                          * contiguous array of 32 bit
00124                                          * wide big-endian values. */
00125 #define SHA224_DIGEST_LENGTH    28
00126 #define SHA256_DIGEST_LENGTH    32
00127 
00128 typedef struct SHA256state_st
00129         {
00130         SHA_LONG h[8];
00131         SHA_LONG Nl,Nh;
00132         SHA_LONG data[SHA_LBLOCK];
00133         unsigned int num,md_len;
00134         } SHA256_CTX;
00135 
00136 #ifndef OPENSSL_NO_SHA256
00137 int SHA224_Init(SHA256_CTX *c);
00138 int SHA224_Update(SHA256_CTX *c, const void *data, size_t len);
00139 int SHA224_Final(unsigned char *md, SHA256_CTX *c);
00140 unsigned char *SHA224(const unsigned char *d, size_t n,unsigned char *md);
00141 int SHA256_Init(SHA256_CTX *c);
00142 int SHA256_Update(SHA256_CTX *c, const void *data, size_t len);
00143 int SHA256_Final(unsigned char *md, SHA256_CTX *c);
00144 unsigned char *SHA256(const unsigned char *d, size_t n,unsigned char *md);
00145 void SHA256_Transform(SHA256_CTX *c, const unsigned char *data);
00146 #endif
00147 
00148 #define SHA384_DIGEST_LENGTH    48
00149 #define SHA512_DIGEST_LENGTH    64
00150 
00151 #ifndef OPENSSL_NO_SHA512
00152 /*
00153  * Unlike 32-bit digest algorithms, SHA-512 *relies* on SHA_LONG64
00154  * being exactly 64-bit wide. See Implementation Notes in sha512.c
00155  * for further details.
00156  */
00157 #define SHA512_CBLOCK   (SHA_LBLOCK*8)  /* SHA-512 treats input data as a
00158                                          * contiguous array of 64 bit
00159                                          * wide big-endian values. */
00160 #if (defined(_WIN32) || defined(_WIN64)) && !defined(__MINGW32__)
00161 #define SHA_LONG64 unsigned __int64
00162 #define U64(C)     C##UI64
00163 #elif defined(__arch64__)
00164 #define SHA_LONG64 unsigned long
00165 #define U64(C)     C##UL
00166 #else
00167 #define SHA_LONG64 unsigned long long
00168 #define U64(C)     C##ULL
00169 #endif
00170 
00171 typedef struct SHA512state_st
00172         {
00173         SHA_LONG64 h[8];
00174         SHA_LONG64 Nl,Nh;
00175         union {
00176                 SHA_LONG64      d[SHA_LBLOCK];
00177                 unsigned char   p[SHA512_CBLOCK];
00178         } u;
00179         unsigned int num,md_len;
00180         } SHA512_CTX;
00181 #endif
00182 
00183 #ifndef OPENSSL_NO_SHA512
00184 int SHA384_Init(SHA512_CTX *c);
00185 int SHA384_Update(SHA512_CTX *c, const void *data, size_t len);
00186 int SHA384_Final(unsigned char *md, SHA512_CTX *c);
00187 unsigned char *SHA384(const unsigned char *d, size_t n,unsigned char *md);
00188 int SHA512_Init(SHA512_CTX *c);
00189 int SHA512_Update(SHA512_CTX *c, const void *data, size_t len);
00190 int SHA512_Final(unsigned char *md, SHA512_CTX *c);
00191 unsigned char *SHA512(const unsigned char *d, size_t n,unsigned char *md);
00192 void SHA512_Transform(SHA512_CTX *c, const unsigned char *data);
00193 #endif
00194 
00195 #ifdef  __cplusplus
00196 }
00197 #endif
00198 
00199 #endif