162587Sitojun/* $FreeBSD$ */ 291671Sume/* $KAME: des.h,v 1.8 2001/09/10 04:03:57 itojun Exp $ */ 362587Sitojun 455009Sshin/* lib/des/des.h */ 555009Sshin/* Copyright (C) 1995-1996 Eric Young (eay@mincom.oz.au) 655009Sshin * All rights reserved. 755009Sshin * 855009Sshin * This file is part of an SSL implementation written 955009Sshin * by Eric Young (eay@mincom.oz.au). 1055009Sshin * The implementation was written so as to conform with Netscapes SSL 1155009Sshin * specification. This library and applications are 1255009Sshin * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE 1355009Sshin * as long as the following conditions are aheared to. 1455009Sshin * 1555009Sshin * Copyright remains Eric Young's, and as such any Copyright notices in 1655009Sshin * the code are not to be removed. If this code is used in a product, 1755009Sshin * Eric Young should be given attribution as the author of the parts used. 1855009Sshin * This can be in the form of a textual message at program startup or 1955009Sshin * in documentation (online or textual) provided with the package. 2055009Sshin * 2155009Sshin * Redistribution and use in source and binary forms, with or without 2255009Sshin * modification, are permitted provided that the following conditions 2355009Sshin * are met: 2455009Sshin * 1. Redistributions of source code must retain the copyright 2555009Sshin * notice, this list of conditions and the following disclaimer. 2655009Sshin * 2. Redistributions in binary form must reproduce the above copyright 2755009Sshin * notice, this list of conditions and the following disclaimer in the 2855009Sshin * documentation and/or other materials provided with the distribution. 2955009Sshin * 3. All advertising materials mentioning features or use of this software 3055009Sshin * must display the following acknowledgement: 3155009Sshin * This product includes software developed by Eric Young (eay@mincom.oz.au) 3255009Sshin * 3355009Sshin * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 3455009Sshin * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 3555009Sshin * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 3655009Sshin * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 3755009Sshin * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 3855009Sshin * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 3955009Sshin * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 4055009Sshin * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 4155009Sshin * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 4255009Sshin * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 4355009Sshin * SUCH DAMAGE. 4455009Sshin * 4555009Sshin * The licence and distribution terms for any publically available version or 4655009Sshin * derivative of this code cannot be changed. i.e. this code cannot simply be 4755009Sshin * copied and put under another distribution licence 4855009Sshin * [including the GNU Public Licence.] 4955009Sshin */ 5055009Sshin 5155009Sshin#ifndef HEADER_DES_H 5262587Sitojun#define HEADER_DES_H 5355009Sshin 5455009Sshin#ifdef __cplusplus 5555009Sshinextern "C" { 5655009Sshin#endif 5755009Sshin 5878064Sume/* must be 32bit quantity */ 5978064Sume#define DES_LONG u_int32_t 6055009Sshin 6155009Sshintypedef unsigned char des_cblock[8]; 6255009Sshintypedef struct des_ks_struct 6355009Sshin { 6491671Sume union { 6591671Sume des_cblock cblock; 6691671Sume /* make sure things are correct size on machines with 6791671Sume * 8 byte longs */ 6891671Sume DES_LONG deslong[2]; 6991671Sume } ks; 7091671Sume int weak_key; 7191671Sume} des_key_schedule[16]; 7255009Sshin 7362587Sitojun#define DES_KEY_SZ (sizeof(des_cblock)) 7462587Sitojun#define DES_SCHEDULE_SZ (sizeof(des_key_schedule)) 7555009Sshin 7662587Sitojun#define DES_ENCRYPT 1 7762587Sitojun#define DES_DECRYPT 0 7855009Sshin 7962587Sitojun#define DES_CBC_MODE 0 8062587Sitojun#define DES_PCBC_MODE 1 8155009Sshin 8255009Sshinextern int des_check_key; /* defaults to false */ 8355009Sshin 8492756Salfredchar *des_options(void); 8592756Salfredvoid des_ecb_encrypt(des_cblock *, des_cblock *, des_key_schedule, int); 8691671Sume 8792756Salfredvoid des_encrypt1(DES_LONG *, des_key_schedule, int); 8892756Salfredvoid des_encrypt2(DES_LONG *, des_key_schedule, int); 8992756Salfredvoid des_encrypt3(DES_LONG *, des_key_schedule, des_key_schedule, 9092756Salfred des_key_schedule); 9192756Salfredvoid des_decrypt3(DES_LONG *, des_key_schedule, des_key_schedule, 9292756Salfred des_key_schedule); 9355009Sshin 9492756Salfredvoid des_ecb3_encrypt(des_cblock *, des_cblock *, des_key_schedule, 9592756Salfred des_key_schedule, des_key_schedule, int); 9691671Sume 9792756Salfredvoid des_ncbc_encrypt(const unsigned char *, unsigned char *, long, 9892756Salfred des_key_schedule, des_cblock *, int); 9991671Sume 10091671Sumevoid des_ede3_cbc_encrypt(const unsigned char *, unsigned char *, long, 10191671Sume des_key_schedule, des_key_schedule, 10291671Sume des_key_schedule, des_cblock *, int); 10391671Sume 10492756Salfredvoid des_set_odd_parity(des_cblock *); 10592756Salfredvoid des_fixup_key_parity(des_cblock *); 10692756Salfredint des_is_weak_key(des_cblock *); 10792756Salfredint des_set_key(des_cblock *, des_key_schedule); 10892756Salfredint des_key_sched(des_cblock *, des_key_schedule); 10992756Salfredint des_set_key_checked(des_cblock *, des_key_schedule); 11092756Salfredvoid des_set_key_unchecked(des_cblock *, des_key_schedule); 11192756Salfredint des_check_key_parity(des_cblock *); 11255009Sshin 11355009Sshin#ifdef __cplusplus 11455009Sshin} 11555009Sshin#endif 11655009Sshin 11755009Sshin#endif 118