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/*
* @(#)des_crypt.h 2.1 88/08/11 4.0 RPCSRC; from 1.4 88/02/08 (C) 1986 SMI
*
* des_crypt.h, des library routine interface
* Copyright (C) 1986, Sun Microsystems, Inc.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are
* met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above
* copyright notice, this list of conditions and the following
* disclaimer in the documentation and/or other materials
* provided with the distribution.
* * Neither the name of Sun Microsystems, Inc. nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
* GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
* WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __DES_CRYPT_H__
#define __DES_CRYPT_H__ 1
#include <features.h>
__BEGIN_DECLS
#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
*/
extern int cbc_crypt (char *__key, char *__buf, unsigned __len,
unsigned __mode, char *__ivec) __THROW;
/*
* Electronic Code Book mode
*/
extern int ecb_crypt (char *__key, char *__buf, unsigned __len,
unsigned __mode) __THROW;
/*
* Set des parity for a key.
* DES parity is odd and in the low bit of each byte
*/
extern void des_setparity (char *__key) __THROW;
__END_DECLS
#endif
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