include/openssl/sha.h

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