1 /* md2.h 2 3 The MD2 hash function, described in RFC 1319. 4 5 Copyright (C) 2003 Niels Möller 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_MD2_H_INCLUDED 35 #define NETTLE_MD2_H_INCLUDED 36 37 #include "nettle-types.h" 38 39 #ifdef __cplusplus 40 extern "C" { 41 #endif 42 43 /* Name mangling */ 44 #define md2_init nettle_md2_init 45 #define md2_update nettle_md2_update 46 #define md2_digest nettle_md2_digest 47 48 #define MD2_DIGEST_SIZE 16 49 #define MD2_BLOCK_SIZE 16 50 /* For backwards compatibility */ 51 #define MD2_DATA_SIZE MD2_BLOCK_SIZE 52 53 struct md2_ctx 54 { 55 uint8_t C[MD2_BLOCK_SIZE]; 56 uint8_t X[3 * MD2_BLOCK_SIZE]; 57 unsigned index; /* Into buffer */ 58 uint8_t block[MD2_BLOCK_SIZE]; /* Block buffer */ 59 }; 60 61 void 62 md2_init(struct md2_ctx *ctx); 63 64 void 65 md2_update(struct md2_ctx *ctx, 66 size_t length, 67 const uint8_t *data); 68 69 void 70 md2_digest(struct md2_ctx *ctx, 71 size_t length, 72 uint8_t *digest); 73 74 75 #ifdef __cplusplus 76 } 77 #endif 78 79 #endif /* NETTLE_MD2_H_INCLUDED */ 80