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 109