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110 lines
4.1 KiB
C
110 lines
4.1 KiB
C
/* $KAME: des.h,v 1.8 2001/09/10 04:03:57 itojun Exp $ */
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/* lib/des/des.h */
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/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au)
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* All rights reserved.
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*
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* This file is part of an SSL implementation written
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* by Eric Young (eay@mincom.oz.au).
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* The implementation was written so as to conform with Netscapes SSL
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* specification. This library and applications are
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* FREE FOR COMMERCIAL AND NON-COMMERCIAL USE
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* as long as the following conditions are aheared to.
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*
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* Copyright remains Eric Young's, and as such any Copyright notices in
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* the code are not to be removed. If this code is used in a product,
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* Eric Young should be given attribution as the author of the parts used.
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* This can be in the form of a textual message at program startup or
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* in documentation (online or textual) provided with the package.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Eric Young (eay@mincom.oz.au)
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*
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* THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* The licence and distribution terms for any publically available version or
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* derivative of this code cannot be changed. i.e. this code cannot simply be
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* copied and put under another distribution licence
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* [including the GNU Public Licence.]
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*/
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#ifndef HEADER_DES_H
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#define HEADER_DES_H
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* must be 32bit quantity */
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#define DES_LONG uint32_t
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typedef unsigned char des_cblock[8];
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typedef struct des_ks_struct
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{
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union {
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des_cblock cblock;
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/* make sure things are correct size on machines with
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* 8 byte longs */
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DES_LONG deslong[2];
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} ks;
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int weak_key;
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} des_key_schedule[16];
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#define DES_KEY_SZ (sizeof(des_cblock))
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#define DES_SCHEDULE_SZ (sizeof(des_key_schedule))
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#define DES_ENCRYPT 1
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#define DES_DECRYPT 0
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#define DES_CBC_MODE 0
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#define DES_PCBC_MODE 1
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extern int des_check_key; /* defaults to false */
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char *des_options(void);
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void des_ecb_encrypt(unsigned char *, unsigned char *, des_key_schedule, int);
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void des_encrypt1(DES_LONG *, des_key_schedule, int);
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void des_encrypt2(DES_LONG *, des_key_schedule, int);
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void des_encrypt3(DES_LONG *, des_key_schedule, des_key_schedule,
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des_key_schedule);
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void des_decrypt3(DES_LONG *, des_key_schedule, des_key_schedule,
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des_key_schedule);
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void des_ecb3_encrypt(unsigned char *, unsigned char *, des_key_schedule,
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des_key_schedule, des_key_schedule, int);
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void des_set_odd_parity(unsigned char *);
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void des_fixup_key_parity(unsigned char *);
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int des_is_weak_key(const unsigned char *);
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int des_set_key(const unsigned char *, des_key_schedule);
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int des_key_sched(const unsigned char *, des_key_schedule);
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int des_set_key_checked(const unsigned char *, des_key_schedule);
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void des_set_key_unchecked(const unsigned char *, des_key_schedule);
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int des_check_key_parity(const unsigned char *);
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#ifdef __cplusplus
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}
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#endif
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#endif
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