[openssh.git] / acss.h

/*	$Id$ */
/*
 * Copyright (c) 2004 The OpenBSD project
 *
 * 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 _ACSS_H_
#define _ACSS_H_

/* 40bit key */
#define ACSS_KEYSIZE		5

/* modes of acss */
#define ACSS_AUTHENTICATE	0
#define ACSS_SESSIONKEY		1
#define ACSS_TITLEKEY		2
#define ACSS_DATA		3

typedef struct acss_key_st {
	unsigned int	lfsr17;		/* current state of lfsrs */
	unsigned int	lfsr25;
	unsigned int	lfsrsum;
	unsigned char	seed[ACSS_KEYSIZE];
	unsigned char	data[ACSS_KEYSIZE];
	unsigned char	subkey[ACSS_KEYSIZE];
	int		encrypt;	/* XXX make these bit flags? */
	int		mode;
	int		seeded;
	int		subkey_avilable;
} ACSS_KEY;

void acss_setkey(ACSS_KEY *, const unsigned char *, int, int);
void acss_setsubkey(ACSS_KEY *, const unsigned char *);
int acss(ACSS_KEY *, unsigned long, const unsigned char *, unsigned char *);

#endif /* ifndef _ACSS_H_ */
Commit	Line	Data
92d0d880	1	/* $Id$ */
268c23e9	2	/*
	3	* Copyright (c) 2004 The OpenBSD project
	4	*
	5	* Permission to use, copy, modify, and distribute this software for any
	6	* purpose with or without fee is hereby granted, provided that the above
	7	* copyright notice and this permission notice appear in all copies.
	8	*
	9	* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
	10	* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
	11	* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
	12	* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
	13	* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
	14	* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
	15	* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
	16	*/
	17
	18	#ifndef _ACSS_H_
	19	#define _ACSS_H_
	20
	21	/* 40bit key */
	22	#define ACSS_KEYSIZE 5
	23
	24	/* modes of acss */
	25	#define ACSS_AUTHENTICATE 0
	26	#define ACSS_SESSIONKEY 1
	27	#define ACSS_TITLEKEY 2
	28	#define ACSS_DATA 3
	29
	30	typedef struct acss_key_st {
	31	unsigned int lfsr17; /* current state of lfsrs */
	32	unsigned int lfsr25;
	33	unsigned int lfsrsum;
	34	unsigned char seed[ACSS_KEYSIZE];
	35	unsigned char data[ACSS_KEYSIZE];
	36	unsigned char subkey[ACSS_KEYSIZE];
	37	int encrypt; /* XXX make these bit flags? */
	38	int mode;
	39	int seeded;
	40	int subkey_avilable;
	41	} ACSS_KEY;
	42
	43	void acss_setkey(ACSS_KEY , const unsigned char , int, int);
	44	void acss_setsubkey(ACSS_KEY , const unsigned char );
	45	int acss(ACSS_KEY , unsigned long, const unsigned char , unsigned char *);
	46
	47	#endif /* ifndef _ACSS_H_ */