1 /* ripemd160.h 2 3 RIPEMD-160 hash function. 4 5 Copyright (C) 2011 Andres Mejia 6 7 This file is part of GNU Nettle. 8 9 GNU Nettle is free software: you can redistribute it and/or 10 modify it under the terms of either: 11 12 * the GNU Lesser General Public License as published by the Free 13 Software Foundation; either version 3 of the License, or (at your 14 option) any later version. 15 16 or 17 18 * the GNU General Public License as published by the Free 19 Software Foundation; either version 2 of the License, or (at your 20 option) any later version. 21 22 or both in parallel, as here. 23 24 GNU Nettle is distributed in the hope that it will be useful, 25 but WITHOUT ANY WARRANTY; without even the implied warranty of 26 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 27 General Public License for more details. 28 29 You should have received copies of the GNU General Public License and 30 the GNU Lesser General Public License along with this program. If 31 not, see http://www.gnu.org/licenses/. 32 */ 33 34 #ifndef NETTLE_RIPEMD160_H_INCLUDED 35 #define NETTLE_RIPEMD160_H_INCLUDED 36 37 #ifdef __cplusplus 38 extern "C" { 39 #endif 40 41 #include "nettle-types.h" 42 43 /* Name mangling */ 44 #define ripemd160_init nettle_ripemd160_init 45 #define ripemd160_update nettle_ripemd160_update 46 #define ripemd160_digest nettle_ripemd160_digest 47 48 /* RIPEMD160 */ 49 50 #define RIPEMD160_DIGEST_SIZE 20 51 #define RIPEMD160_BLOCK_SIZE 64 52 /* For backwards compatibility */ 53 #define RIPEMD160_DATA_SIZE RIPEMD160_BLOCK_SIZE 54 55 /* Digest is kept internally as 5 32-bit words. */ 56 #define _RIPEMD160_DIGEST_LENGTH 5 57 58 struct ripemd160_ctx 59 { 60 uint32_t state[_RIPEMD160_DIGEST_LENGTH]; 61 uint64_t count; /* 64-bit block count */ 62 unsigned int index; 63 uint8_t block[RIPEMD160_BLOCK_SIZE]; 64 }; 65 66 void 67 ripemd160_init(struct ripemd160_ctx *ctx); 68 69 void 70 ripemd160_update(struct ripemd160_ctx *ctx, 71 size_t length, 72 const uint8_t *data); 73 74 void 75 ripemd160_digest(struct ripemd160_ctx *ctx, 76 size_t length, 77 uint8_t *digest); 78 79 #ifdef __cplusplus 80 } 81 #endif 82 83 #endif /* NETTLE_RIPEMD160_H_INCLUDED */ 84