net-snmp 5.7
openssl_md5.h
00001 /* crypto/md5/md5.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_MD5_H
00060 #define HEADER_MD5_H
00061 
00062 #include <stddef.h>
00063 
00064 #ifdef  __cplusplus
00065 extern "C" {
00066 #endif
00067 
00068 #ifdef OPENSSL_NO_MD5
00069 #error MD5 is disabled.
00070 #endif
00071 
00072 /*
00073  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
00074  * ! MD5_LONG has to be at least 32 bits wide. If it's wider, then !
00075  * ! MD5_LONG_LOG2 has to be defined along.                        !
00076  * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
00077  */
00078 
00079 #if defined(__LP32__)
00080 #define MD5_LONG unsigned long
00081 #elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__)
00082 #define MD5_LONG unsigned long
00083 #define MD5_LONG_LOG2 3
00084 /*
00085  * _CRAY note. I could declare short, but I have no idea what impact
00086  * does it have on performance on none-T3E machines. I could declare
00087  * int, but at least on C90 sizeof(int) can be chosen at compile time.
00088  * So I've chosen long...
00089  *                                      <appro@fy.chalmers.se>
00090  */
00091 #else
00092 #define MD5_LONG unsigned int
00093 #endif
00094 
00095 #define MD5_CBLOCK      64
00096 #define MD5_LBLOCK      (MD5_CBLOCK/4)
00097 #define MD5_DIGEST_LENGTH 16
00098 
00099 typedef struct MD5state_st
00100         {
00101         MD5_LONG A,B,C,D;
00102         MD5_LONG Nl,Nh;
00103         MD5_LONG data[MD5_LBLOCK];
00104         unsigned int num;
00105         } MD5_CTX;
00106 
00107 int MD5_Init(MD5_CTX *c);
00108 int MD5_Update(MD5_CTX *c, const void *data, size_t len);
00109 int MD5_Final(unsigned char *md, MD5_CTX *c);
00110 unsigned char *MD5(const unsigned char *d, size_t n, unsigned char *md);
00111 void MD5_Transform(MD5_CTX *c, const unsigned char *b);
00112 #ifdef  __cplusplus
00113 }
00114 #endif
00115 
00116 #endif