1 #ifndef INCLUDED_TIGER_H 2 #define INCLUDED_TIGER_H 3 /* vim: set ts=8 sts=4 sw=4 tw=80 noet: */ 4 /*====================================================================== 5 Copyright (C) 2004,2005,2009 Walter Doekes <walter+tthsum@wjd.nu> 6 This file is part of tthsum. 7 8 tthsum is free software: you can redistribute it and/or modify 9 it under the terms of the GNU General Public License as published by 10 the Free Software Foundation, either version 3 of the License, or 11 (at your option) any later version. 12 13 tthsum is distributed in the hope that it will be useful, 14 but WITHOUT ANY WARRANTY; without even the implied warranty of 15 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 16 GNU General Public License for more details. 17 18 You should have received a copy of the GNU General Public License 19 along with tthsum. If not, see <http://www.gnu.org/licenses/>. 20 ======================================================================*/ 21 22 /** 23 * The tiger3/192 hash algorithm (192 bits, 3 passes) 24 */ 25 26 #include "types.h" 27 28 #ifdef __cplusplus 29 extern "C" { 30 #endif /* __cplusplus */ 31 32 /** 33 * The Tiger Hash function. 34 * Supply an 64-bit aligned octet-stream and the length of the _octet_ stream. 35 * The last parameter, result, must be large enough to hold 3 uint64_t's. 36 */ 37 void tiger(const uint64_t* data, unsigned length, uint64_t* result); 38 39 /** 40 * The Tiger Hash function, modified to prepend the specified byte to the input 41 * data. This is useful for the THEX algorithm which prepends a 0x00 to leaf 42 * nodes and 0x01 to the hash nodes. 43 * 44 * Note that this function does not align the data properly on little endian 45 * machines. On big endian machines it will re-align because it copies the 46 * data to a temporary buffer while converting the little endian input. 47 * 48 * See tiger() for details of the other arguments. 49 */ 50 void tiger_bp(char prepend, const void* data, unsigned length, 51 uint64_t* result); 52 53 #ifdef __cplusplus 54 } /* extern "C" */ 55 #endif /* __cplusplus */ 56 57 #endif /* INCLUDED_TIGER_H */ 58