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/*

 * @(#)des_crypt.h      2.1 88/08/11 4.0 RPCSRC;        from 1.4 88/02/08 (C) 1986 SMI

 * $FreeBSD: src/include/rpc/des_crypt.h,v 1.2 1999/12/29 05:00:42 peter Exp $

 *

 * des_crypt.h, des library routine interface

 * Copyright (C) 1986, Sun Microsystems, Inc.

 */

/*

 * Sun RPC is a product of Sun Microsystems, Inc. and is provided for

 * unrestricted use provided that this legend is included on all tape

 * media and as a part of the software program in whole or part.  Users

 * may copy or modify Sun RPC without charge, but are not authorized

 * to license or distribute it to anyone else except as part of a product or

 * program developed by the user.

 *

 * SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND INCLUDING THE

 * WARRANTIES OF DESIGN, MERCHANTIBILITY AND FITNESS FOR A PARTICULAR

 * PURPOSE, OR ARISING FROM A COURSE OF DEALING, USAGE OR TRADE PRACTICE.

 *

 * Sun RPC is provided with no support and without any obligation on the

 * part of Sun Microsystems, Inc. to assist in its use, correction,

 * modification or enhancement.

 *

 * SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT TO THE

 * INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY PATENTS BY SUN RPC

 * OR ANY PART THEREOF.

 *

 * In no event will Sun Microsystems, Inc. be liable for any lost revenue

 * or profits or other special, indirect and consequential damages, even if

 * Sun has been advised of the possibility of such damages.

 *

 * Sun Microsystems, Inc.

 * 2550 Garcia Avenue

 * Mountain View, California  94043

 */

#include <sys/cdefs.h>

#include <rpc/rpc.h>

#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

 */

__BEGIN_DECLS

#ifdef __STDC__

int cbc_crypt __P(( char *, char *, unsigned int, unsigned int, char *));

#else

cbc_crypt(/* key, buf, len, mode, ivec */); /*

        char *key;

        char *buf;

        unsigned len;

        unsigned mode;

        char *ivec;

*/

#endif

/*

 * Electronic Code Book mode

 */

#ifdef __STDC__

int ecb_crypt __P(( char *, char *, unsigned int, unsigned int ));

#else

ecb_crypt(/* key, buf, len, mode */); /*

        char *key;

        char *buf;

        unsigned len;

        unsigned mode;

*/

#endif

__END_DECLS

#ifndef _KERNEL

/*

 * Set des parity for a key.

 * DES parity is odd and in the low bit of each byte

 */

__BEGIN_DECLS

#ifdef __STDC__

void des_setparity __P(( char *));

#else

void

des_setparity(/* key */); /*

        char *key;

*/

#endif

__END_DECLS

#endif