auth_des.h

<B>Digital的Unix操作系统VAX 4.2源码</B>

/* @(#)auth_des.h	4.1  (ULTRIX)        7/2/90     */

/************************************************************************
 *									*
 *			Copyright (c) 1986 by				*
 *		Digital Equipment Corporation, Maynard, MA		*
 *			All rights reserved.				*
 *									*
 *   This software is furnished under a license and may be used and	*
 *   copied  only  in accordance with the terms of such license and	*
 *   with the  inclusion  of  the  above  copyright  notice.   This	*
 *   software  or  any  other copies thereof may not be provided or	*
 *   otherwise made available to any other person.  No title to and	*
 *   ownership of the software is hereby transferred.			*
 *									*
 *   This software is  derived  from  software  received  from  the	*
 *   University    of   California,   Berkeley,   and   from   Bell	*
 *   Laboratories.  Use, duplication, or disclosure is  subject  to	*
 *   restrictions  under  license  agreements  with  University  of	*
 *   California and with AT&T.						*
 *									*
 *   The information in this software is subject to change  without	*
 *   notice  and should not be construed as a commitment by Digital	*
 *   Equipment Corporation.						*
 *									*
 *   Digital assumes no responsibility for the use  or  reliability	*
 *   of its software on equipment which is not supplied by Digital.	*
 *									*
 ************************************************************************/

/*
 *	Portions of this software have been licensed to 
 *	Digital Equipment Company, Maynard, MA.
 *	Copyright (c) 1987 Sun Microsystems, Inc.  ALL RIGHTS RESERVED.
 */
/*
 *	Modification History:
 *
 * 	14 Jun 89 -- condylis
 *		Added copyright header.
 *
 */
/*
 * auth_des.h, Protocol for DES style authentication for RPC
 */

#ifndef _AUTH_DES_
#define _AUTH_DES_

/*
 * There are two kinds of "names": fullnames and nicknames
 */
enum authdes_namekind {
	ADN_FULLNAME, 
	ADN_NICKNAME
};

/*
 * A fullname contains the network name of the client, 
 * a conversation key and the window
 */
struct authdes_fullname {
	char *name;		/* network name of client, up to MAXNETNAMELEN */
	des_block key;		/* conversation key */
	u_long window;		/* encrypted window */
};


/*
 * A credential 
 */
struct authdes_cred {
	enum authdes_namekind adc_namekind;
	struct authdes_fullname adc_fullname;
	u_long adc_nickname;
};



/*
 * A des authentication verifier 
 */
struct authdes_verf {
	union {
		struct timeval adv_ctime;	/* clear time */
		des_block adv_xtime;		/* crypt time */
	} adv_time_u;
	u_long adv_int_u;
};

/*
 * des authentication verifier: client variety
 *
 * adv_timestamp is the current time.
 * adv_winverf is the credential window + 1.
 * Both are encrypted using the conversation key.
 */
#define adv_timestamp	adv_time_u.adv_ctime
#define adv_xtimestamp	adv_time_u.adv_xtime
#define adv_winverf	adv_int_u

/*
 * des authentication verifier: server variety
 *
 * adv_timeverf is the client's timestamp + client's window
 * adv_nickname is the server's nickname for the client.
 * adv_timeverf is encrypted using the conversation key.
 */
#define adv_timeverf	adv_time_u.adv_ctime
#define adv_xtimeverf	adv_time_u.adv_xtime
#define adv_nickname	adv_int_u

#endif /* ndef _AUTH_DES_ */