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