1 /* 2 * Generic DES driver interface 3 * Keep this file hardware independent! 4 * Copyright (c) 2010, Oracle America, Inc. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are 8 * met: 9 * 10 * * Redistributions of source code must retain the above copyright 11 * notice, this list of conditions and the following disclaimer. 12 * * Redistributions in binary form must reproduce the above 13 * copyright notice, this list of conditions and the following 14 * disclaimer in the documentation and/or other materials 15 * provided with the distribution. 16 * * Neither the name of the "Oracle America, Inc." nor the names of its 17 * contributors may be used to endorse or promote products derived 18 * from this software without specific prior written permission. 19 * 20 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 21 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS 23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE 24 * COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 26 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE 27 * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, 29 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 30 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 #ifndef _DES_H 35 #define _DES_H 36 37 #include <sys/types.h> 38 39 #define DES_MAXLEN 65536 /* maximum # of bytes to encrypt */ 40 #define DES_QUICKLEN 16 /* maximum # of bytes to encrypt quickly */ 41 42 enum desdir 43 { 44 ENCRYPT, DECRYPT 45 }; 46 enum desmode 47 { 48 CBC, ECB 49 }; 50 51 /* 52 * parameters to ioctl call 53 */ 54 struct desparams 55 { 56 unsigned char des_key[8]; /* key (with low bit parity) */ 57 enum desdir des_dir; /* direction */ 58 enum desmode des_mode; /* mode */ 59 unsigned char des_ivec[8]; /* input vector */ 60 unsigned des_len; /* number of bytes to crypt */ 61 union 62 { 63 unsigned char UDES_data[DES_QUICKLEN]; 64 unsigned char *UDES_buf; 65 } 66 UDES; 67 #define des_data UDES.UDES_data /* direct data here if quick */ 68 #define des_buf UDES.UDES_buf /* otherwise, pointer to data */ 69 }; 70 71 #endif 72