1 /* $NetBSD: des_ecb.c,v 1.6 2001/11/13 01:40:09 lukem Exp $ */ 2 /* $KAME: des_ecb.c,v 1.5 2000/11/06 13:58:08 itojun Exp $ */ 3 4 /* crypto/des/ecb_enc.c */ 5 /* Copyright (C) 1995-1998 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 #include <sys/cdefs.h> 52 __KERNEL_RCSID(0, "$NetBSD: des_ecb.c,v 1.6 2001/11/13 01:40:09 lukem Exp $"); 53 54 #include <sys/param.h> 55 #ifdef _KERNEL 56 #include <sys/systm.h> 57 #else 58 #include <stdio.h> 59 #include <string.h> 60 #endif 61 #include <crypto/des/des_locl.h> 62 #include <crypto/des/spr.h> 63 64 /* char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay"; */ /* wrong */ 65 /* char *DES_version="DES part of SSLeay 0.6.4 30-Aug-1996"; */ 66 67 char *des_options(void) 68 { 69 static int init=1; 70 static char buf[32]; 71 72 if (init) 73 { 74 const char *ptr,*unroll,*risc,*size; 75 76 #ifdef DES_PTR 77 ptr="ptr"; 78 #else 79 ptr="idx"; 80 #endif 81 #if defined(DES_RISC1) || defined(DES_RISC2) 82 #ifdef DES_RISC1 83 risc="risc1"; 84 #endif 85 #ifdef DES_RISC2 86 risc="risc2"; 87 #endif 88 #else 89 risc="cisc"; 90 #endif 91 #ifdef DES_UNROLL 92 unroll="16"; 93 #else 94 unroll="4"; 95 #endif 96 if (sizeof(DES_LONG) != sizeof(long)) 97 size="int"; 98 else 99 size="long"; 100 sprintf(buf,"des(%s,%s,%s,%s)",ptr,risc,unroll,size); 101 init=0; 102 } 103 return(buf); 104 } 105 void des_ecb_encrypt(des_cblock *input, des_cblock *output, 106 des_key_schedule ks, int enc) 107 { 108 register DES_LONG l; 109 DES_LONG ll[2]; 110 const unsigned char *in=&(*input)[0]; 111 unsigned char *out = &(*output)[0]; 112 113 c2l(in,l); ll[0]=l; 114 c2l(in,l); ll[1]=l; 115 des_encrypt1(ll,ks,enc); 116 l=ll[0]; l2c(l,out); 117 l=ll[1]; l2c(l,out); 118 l=ll[0]=ll[1]=0; 119 } 120 121 void des_ecb3_encrypt(des_cblock *input, des_cblock *output, 122 des_key_schedule ks1, des_key_schedule ks2, des_key_schedule ks3, 123 int enc) 124 { 125 register DES_LONG l0,l1; 126 DES_LONG ll[2]; 127 const unsigned char *in = &(*input)[0]; 128 unsigned char *out = &(*output)[0]; 129 130 c2l(in,l0); 131 c2l(in,l1); 132 ll[0]=l0; 133 ll[1]=l1; 134 135 if (enc) 136 des_encrypt3(ll,ks1,ks2,ks3); 137 else 138 des_decrypt3(ll,ks1,ks2,ks3); 139 140 l0=ll[0]; 141 l1=ll[1]; 142 l2c(l0,out); 143 l2c(l1,out); 144 } 145