crypto/libressl/include/openssl/md5.h

   1 /* $OpenBSD: md5.h,v 1.19 2014/07/13 14:13:27 beck Exp $ */
   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 #include <stddef.h>
  60
  61 #ifndef HEADER_MD5_H
  62 #define HEADER_MD5_H
  63 #if !defined(HAVE_ATTRIBUTE__BOUNDED__) && !defined(__OpenBSD__)
  64 #define __bounded__(x, y, z)
  65 #endif
  66
  67 #include <openssl/opensslconf.h>
  68
  69 #ifdef  __cplusplus
  70 extern "C" {
  71 #endif
  72
  73 #ifdef OPENSSL_NO_MD5
  74 #error MD5 is disabled.
  75 #endif
  76
  77 /*
  78  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  79  * ! MD5_LONG has to be at least 32 bits wide.                     !
  80  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
  81  */
  82
  83 #define MD5_LONG unsigned int
  84
  85 #define MD5_CBLOCK      64
  86 #define MD5_LBLOCK      (MD5_CBLOCK/4)
  87 #define MD5_DIGEST_LENGTH 16
  88
  89 typedef struct MD5state_st
  90         {
  91         MD5_LONG A,B,C,D;
  92         MD5_LONG Nl,Nh;
  93         MD5_LONG data[MD5_LBLOCK];
  94         unsigned int num;
  95         } MD5_CTX;
  96
  97 int MD5_Init(MD5_CTX *c);
  98 int MD5_Update(MD5_CTX *c, const void *data, size_t len)
  99         __attribute__ ((__bounded__(__buffer__,2,3)));
 100 int MD5_Final(unsigned char *md, MD5_CTX *c);
 101 unsigned char *MD5(const unsigned char *d, size_t n, unsigned char *md)
 102         __attribute__ ((__bounded__(__buffer__,1,2)));
 103 void MD5_Transform(MD5_CTX *c, const unsigned char *b);
 104 #ifdef  __cplusplus
 105 }
 106 #endif
 107
 108 #endif