#ifndef __RPC_DES_CRYPT_H__
#define __RPC_DES_CRYPT_H__
#ident "$Revision: 1.5 $"
/*
 *
 * Copyright 1992, Silicon Graphics, Inc.
 * All Rights Reserved.
 *
 * This is UNPUBLISHED PROPRIETARY SOURCE CODE of Silicon Graphics, Inc.;
 * the contents of this file may not be disclosed to third parties, copied or
 * duplicated in any form, in whole or in part, without the prior written
 * permission of Silicon Graphics, Inc.
 *
 * RESTRICTED RIGHTS LEGEND:
 * Use, duplication or disclosure by the Government is subject to restrictions
 * as set forth in subdivision (c)(1)(ii) of the Rights in Technical Data
 * and Computer Software clause at DFARS 252.227-7013, and/or in similar or
 * successor clauses in the FAR, DOD or NASA FAR Supplement. Unpublished -
 * rights reserved under the Copyright Laws of the United States.
 */

#ifdef __cplusplus
extern "C" {
#endif

/*	Copyright (c) 1990, 1991 UNIX System Laboratories, Inc.	*/
/*	Copyright (c) 1984, 1986, 1987, 1988, 1989, 1990 AT&T	*/
/*	  All Rights Reserved  	*/

/*	THIS IS UNPUBLISHED PROPRIETARY SOURCE CODE OF     	*/
/*	UNIX System Laboratories, Inc.                     	*/
/*	The copyright notice above does not evidence any   	*/
/*	actual or intended publication of such source code.	*/


#ident	"@(#)uts-comm:net/rpc/des_crypt.h	1.3"

/*
 *  		PROPRIETARY NOTICE (Combined)
 *  
 *  This source code is unpublished proprietary information
 *  constituting, or derived under license from AT&T's Unix(r) System V.
 *  In addition, portions of such source code were derived from Berkeley
 *  4.3 BSD under license from the Regents of the University of
 *  California.
 *  
 *  
 *  
 *  		Copyright Notice 
 *  
 *  Notice of copyright on this source code product does not indicate 
 *  publication.
 *  
 *  	(c) 1986,1987,1988,1989  Sun Microsystems, Inc.
 *  	(c) 1983,1984,1985,1986,1987,1988,1989  AT&T.
 *  	          All rights reserved.
 */

/*
 * des_crypt.h, des library routine interface
 */

#define DES_MAXDATA 8192	/* max bytes encrypted in one call */
#define DES_DIRMASK (1 << 0)
#define DES_ENCRYPT (0*DES_DIRMASK)	/* Encrypt */
#define DES_DECRYPT (1*DES_DIRMASK)	/* Decrypt */


#define DES_DEVMASK (1 << 1)
#define	DES_HW (0*DES_DEVMASK)	/* Use hardware device */ 
#define DES_SW (1*DES_DEVMASK)	/* Use software device */


#define DESERR_NONE 0	/* succeeded */
#define DESERR_NOHWDEVICE 1	/* succeeded, but hw device not available */
#define DESERR_HWERROR 2	/* failed, hardware/driver error */
#define DESERR_BADPARAM 3	/* failed, bad parameter to call */

#define DES_FAILED(err) \
	((err) > DESERR_NOHWDEVICE)

/*
 * cbc_crypt()
 * ecb_crypt()
 *
 * Encrypt (or decrypt) len bytes of a buffer buf.
 * The length must be a multiple of eight.
 * The key should have odd parity in the low bit of each byte.
 * ivec is the input vector, and is updated to the new one (cbc only).
 * The mode is created by oring together the appropriate parameters.
 * DESERR_NOHWDEVICE is returned if DES_HW was specified but
 * there was no hardware to do it on (the data will still be
 * encrypted though, in software).
 */

/*
 * Cipher Block Chaining mode
 */
int cbc_crypt(char *key, char *buf, unsigned len, unsigned mode, char *ivec); 

/*
 * Electronic Code Book mode
 */
int ecb_crypt(char *key, char *buf, unsigned len, unsigned mode);

#ifndef _KERNEL
/* 
 * Set des parity for a key.
 * DES parity is odd and in the low bit of each byte
 */
void des_setparity(char *key);	
#endif	/* _KERNEL */

#ifdef __cplusplus
}
#endif
#endif /* !__RPC_DES_CRYPT_H__ */