net-snmp 5.7
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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