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/*
* Generic DES driver interface
* Keep this file hardware independent!
* Copyright (c) 2010, Oracle America, 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 the "Oracle America, 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_H
#define _DES_H
#include <sys/types.h>
#define DES_MAXLEN 65536 /* maximum # of bytes to encrypt */
#define DES_QUICKLEN 16 /* maximum # of bytes to encrypt quickly */
enum desdir
{
ENCRYPT, DECRYPT
};
enum desmode
{
CBC, ECB
};
/*
* parameters to ioctl call
*/
struct desparams
{
unsigned char des_key[8]; /* key (with low bit parity) */
enum desdir des_dir; /* direction */
enum desmode des_mode; /* mode */
unsigned char des_ivec[8]; /* input vector */
unsigned des_len; /* number of bytes to crypt */
union
{
unsigned char UDES_data[DES_QUICKLEN];
unsigned char *UDES_buf;
}
UDES;
#define des_data UDES.UDES_data /* direct data here if quick */
#define des_buf UDES.UDES_buf /* otherwise, pointer to data */
};
#endif
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