1 /* crypto/md4/md4.h */ 2 /* Copyright (C) 1995-1998 Eric Young (eay (at) cryptsoft.com) 3 * All rights reserved. 4 * 5 * This package is an SSL implementation written 6 * by Eric Young (eay (at) 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 (at) 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 (at) 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 (at) 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 #ifndef HEADER_MD4_H 60 #define HEADER_MD4_H 61 62 #include <openssl/e_os2.h> 63 #include <stddef.h> 64 65 #ifdef __cplusplus 66 extern "C" { 67 #endif 68 69 #ifdef OPENSSL_NO_MD4 70 #error MD4 is disabled. 71 #endif 72 73 /* 74 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 75 * ! MD4_LONG has to be at least 32 bits wide. If it's wider, then ! 76 * ! MD4_LONG_LOG2 has to be defined along. ! 77 * !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! 78 */ 79 80 #if defined(__LP32__) 81 #define MD4_LONG unsigned long 82 #elif defined(OPENSSL_SYS_CRAY) || defined(__ILP64__) 83 #define MD4_LONG unsigned long 84 #define MD4_LONG_LOG2 3 85 /* 86 * _CRAY note. I could declare short, but I have no idea what impact 87 * does it have on performance on none-T3E machines. I could declare 88 * int, but at least on C90 sizeof(int) can be chosen at compile time. 89 * So I've chosen long... 90 * <appro (at) fy.chalmers.se> 91 */ 92 #else 93 #define MD4_LONG unsigned int 94 #endif 95 96 #define MD4_CBLOCK 64 97 #define MD4_LBLOCK (MD4_CBLOCK/4) 98 #define MD4_DIGEST_LENGTH 16 99 100 typedef struct MD4state_st 101 { 102 MD4_LONG A,B,C,D; 103 MD4_LONG Nl,Nh; 104 MD4_LONG data[MD4_LBLOCK]; 105 unsigned int num; 106 } MD4_CTX; 107 108 int MD4_Init(MD4_CTX *c); 109 int MD4_Update(MD4_CTX *c, const void *data, size_t len); 110 int MD4_Final(unsigned char *md, MD4_CTX *c); 111 unsigned char *MD4(const unsigned char *d, size_t n, unsigned char *md); 112 void MD4_Transform(MD4_CTX *c, const unsigned char *b); 113 #ifdef __cplusplus 114 } 115 #endif 116 117 #endif 118
