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Annotation of src/sys/crypto/des/des.h, Revision 1.6

1.6     ! perry       1: /*     $NetBSD: des.h,v 1.5 2001/09/09 11:01:02 tls Exp $      */
1.4       itojun      2: /*     $KAME: des.h,v 1.7 2000/09/18 20:59:21 itojun Exp $     */
1.1       thorpej     3:
                      4: /* lib/des/des.h */
                      5: /* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au)
                      6:  * All rights reserved.
                      7:  *
                      8:  * This file is part of an SSL implementation written
                      9:  * by Eric Young (eay@mincom.oz.au).
                     10:  * The implementation was written so as to conform with Netscapes SSL
                     11:  * specification.  This library and applications are
                     12:  * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
                     13:  * as long as the following conditions are aheared to.
                     14:  *
                     15:  * Copyright remains Eric Young's, and as such any Copyright notices in
                     16:  * the code are not to be removed.  If this code is used in a product,
                     17:  * Eric Young should be given attribution as the author of the parts used.
                     18:  * This can be in the form of a textual message at program startup or
                     19:  * in documentation (online or textual) provided with the package.
                     20:  *
                     21:  * Redistribution and use in source and binary forms, with or without
                     22:  * modification, are permitted provided that the following conditions
                     23:  * are met:
                     24:  * 1. Redistributions of source code must retain the copyright
                     25:  *    notice, this list of conditions and the following disclaimer.
                     26:  * 2. Redistributions in binary form must reproduce the above copyright
                     27:  *    notice, this list of conditions and the following disclaimer in the
                     28:  *    documentation and/or other materials provided with the distribution.
                     29:  * 3. All advertising materials mentioning features or use of this software
                     30:  *    must display the following acknowledgement:
                     31:  *    This product includes software developed by Eric Young (eay@mincom.oz.au)
                     32:  *
                     33:  * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
                     34:  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     35:  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     36:  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
                     37:  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     38:  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     39:  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     40:  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     41:  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     42:  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     43:  * SUCH DAMAGE.
                     44:  *
                     45:  * The licence and distribution terms for any publically available version or
                     46:  * derivative of this code cannot be changed.  i.e. this code cannot simply be
                     47:  * copied and put under another distribution licence
                     48:  * [including the GNU Public Licence.]
                     49:  */
                     50:
                     51: #ifndef HEADER_DES_H
                     52: #define HEADER_DES_H
                     53:
                     54: #ifdef  __cplusplus
                     55: extern "C" {
                     56: #endif
                     57:
1.2       itojun     58: /* must be 32bit quantity */
                     59: #define DES_LONG u_int32_t
1.1       thorpej    60:
                     61: typedef unsigned char des_cblock[8];
                     62: typedef struct des_ks_struct
                     63:        {
1.5       tls        64:        union   {
                     65:        des_cblock cblock;
                     66:        /* make sure things are correct size on machines with
                     67:         * 8 byte longs */
                     68:        DES_LONG deslong[2];
                     69:        } ks;
                     70:        int weak_key;
                     71: } des_key_schedule[16];
1.1       thorpej    72:
                     73: #define DES_KEY_SZ     (sizeof(des_cblock))
                     74: #define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
                     75:
                     76: #define DES_ENCRYPT    1
                     77: #define DES_DECRYPT    0
                     78:
                     79: #define DES_CBC_MODE   0
                     80: #define DES_PCBC_MODE  1
                     81:
                     82: extern int des_check_key;      /* defaults to false */
                     83:
1.2       itojun     84: char *des_options __P((void));
                     85: void des_ecb_encrypt __P((des_cblock *, des_cblock *,
                     86:        des_key_schedule, int));
1.5       tls        87:
                     88: void des_encrypt1 __P((DES_LONG *, des_key_schedule, int));
1.2       itojun     89: void des_encrypt2 __P((DES_LONG *, des_key_schedule, int));
1.5       tls        90: void des_encrypt3 __P((DES_LONG *, des_key_schedule, des_key_schedule,
                     91:                      des_key_schedule));
                     92: void des_decrypt3 __P((DES_LONG *, des_key_schedule, des_key_schedule,
                     93:                      des_key_schedule));
                     94:
1.6     ! perry      95: void des_ecb3_encrypt __P((des_cblock *, des_cblock *, des_key_schedule,
1.5       tls        96:                          des_key_schedule, des_key_schedule, int));
                     97:
                     98: void des_ncbc_encrypt __P((const unsigned char *, unsigned char *, long,
                     99:                          des_key_schedule, des_cblock *, int));
                    100:
                    101: void des_ede3_cbc_encrypt(const unsigned char *, unsigned char *, long,
1.6     ! perry     102:                          des_key_schedule, des_key_schedule,
1.5       tls       103:                          des_key_schedule, des_cblock *, int);
1.2       itojun    104:
                    105: void des_set_odd_parity __P((des_cblock *));
1.6     ! perry     106: void des_fixup_key_parity __P((des_cblock *));
1.2       itojun    107: int des_is_weak_key __P((des_cblock *));
                    108: int des_set_key __P((des_cblock *, des_key_schedule));
                    109: int des_key_sched __P((des_cblock *, des_key_schedule));
1.5       tls       110: int des_set_key_checked __P((des_cblock *, des_key_schedule));
                    111: void des_set_key_unchecked __P((des_cblock *, des_key_schedule));
                    112: int des_check_key_parity __P((des_cblock *));
1.1       thorpej   113:
                    114: #ifdef  __cplusplus
                    115: }
                    116: #endif
                    117:
                    118: #endif