1 /* $OpenBSD: michael.h,v 1.2 2012/12/05 23:20:15 deraadt Exp $ */ 2 3 /* 4 * Copyright (c) 2005, 2006 Reyk Floeter <reyk@openbsd.org> 5 * 6 * Permission to use, copy, modify, and distribute this software for any 7 * purpose with or without fee is hereby granted, provided that the above 8 * copyright notice and this permission notice appear in all copies. 9 * 10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 17 */ 18 19 #ifndef _MICHAEL_H_ 20 #define _MICHAEL_H_ 21 22 #define MICHAEL_BLOCK_LENGTH 8 23 #define MICHAEL_RAW_BLOCK_LENGTH 4 24 #define MICHAEL_DIGEST_LENGTH 8 25 26 typedef struct michael_context { 27 u_int32_t michael_key[2]; 28 u_int32_t michael_l, michael_r; 29 u_int32_t michael_state; 30 u_int michael_count; 31 } MICHAEL_CTX; 32 33 __BEGIN_DECLS 34 void michael_init(MICHAEL_CTX *); 35 void michael_update(MICHAEL_CTX *, const u_int8_t *, u_int) 36 __attribute__((__bounded__(__buffer__, 2, 3))); 37 void michael_final(u_int8_t [MICHAEL_DIGEST_LENGTH], MICHAEL_CTX *) 38 __attribute__((__bounded__(__minbytes__, 1, 39 MICHAEL_DIGEST_LENGTH))); 40 void michael_key(const u_int8_t *, MICHAEL_CTX *) 41 __attribute__((__bounded__(__minbytes__, 1, 42 MICHAEL_BLOCK_LENGTH))); 43 __END_DECLS 44 45 #endif /* _MICHAEL_H_ */ 46