crypto/openssl-0.9.7d/include/openssl/sha.h

   1 /* crypto/sha/sha.h */
   2 /* Copyright (C) 1995-1998 Eric Young (eay@cryptsoft.com)
   3  * All rights reserved.
   4  *
   5  * This package is an SSL implementation written
   6  * by Eric Young (eay@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@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@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@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
  64 #ifdef  __cplusplus
  65 extern "C" {
  66 #endif
  67
  68 #if defined(OPENSSL_NO_SHA) || (defined(OPENSSL_NO_SHA0) && defined(OPENSSL_NO_SHA1))
  69 #error SHA is disabled.
  70 #endif
  71
  72 /*
  73  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  74  * ! SHA_LONG has to be at least 32 bits wide. If it's wider, then !
  75  * ! SHA_LONG_LOG2 has to be defined along.                        !
  76  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  77  */
  78
  79 #if defined(OPENSSL_SYS_WIN16) || defined(__LP32__)
  80 #define SHA_LONG unsigned long
  81 #elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
  82 #define SHA_LONG unsigned long
  83 #define SHA_LONG_LOG2 3
  84 #else
  85 #define SHA_LONG unsigned int
  86 #endif
  87
  88 #define SHA_LBLOCK      16
  89 #define SHA_CBLOCK      (SHA_LBLOCK*4)  /* SHA treats input data as a
  90                                          * contiguous array of 32 bit
  91                                          * wide big-endian values. */
  92 #define SHA_LAST_BLOCK  (SHA_CBLOCK-8)
  93 #define SHA_DIGEST_LENGTH 20
  94
  95 typedef struct SHAstate_st
  96         {
  97         SHA_LONG h0,h1,h2,h3,h4;
  98         SHA_LONG Nl,Nh;
  99         SHA_LONG data[SHA_LBLOCK];
 100         int num;
 101         } SHA_CTX;
 102
 103 #ifndef OPENSSL_NO_SHA0
 104 int SHA_Init(SHA_CTX *c);
 105 int SHA_Update(SHA_CTX *c, const void *data, unsigned long len);
 106 int SHA_Final(unsigned char *md, SHA_CTX *c);
 107 unsigned char *SHA(const unsigned char *d, unsigned long n,unsigned char *md);
 108 void SHA_Transform(SHA_CTX *c, const unsigned char *data);
 109 #endif
 110 #ifndef OPENSSL_NO_SHA1
 111 int SHA1_Init(SHA_CTX *c);
 112 int SHA1_Update(SHA_CTX *c, const void *data, unsigned long len);
 113 int SHA1_Final(unsigned char *md, SHA_CTX *c);
 114 unsigned char *SHA1(const unsigned char *d, unsigned long n,unsigned char *md);
 115 void SHA1_Transform(SHA_CTX *c, const unsigned char *data);
 116 #endif
 117 #ifdef  __cplusplus
 118 }
 119 #endif
 120
 121 #endif