1 /* $FreeBSD: src/sys/crypto/des/des_ecb.c,v 1.6 2004/06/14 00:38:54 obrien Exp $ */ 2 /* $KAME: des_ecb.c,v 1.6 2001/09/10 04:03:58 itojun Exp $ */ 3 4 /* crypto/des/ecb_enc.c */ 5 6 /* Copyright (C) 1995-1998 Eric Young (eay@mincom.oz.au) 7 * All rights reserved. 8 * 9 * This file is part of an SSL implementation written 10 * by Eric Young (eay@mincom.oz.au). 11 * The implementation was written so as to conform with Netscapes SSL 12 * specification. This library and applications are 13 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE 14 * as long as the following conditions are aheared to. 15 * 16 * Copyright remains Eric Young's, and as such any Copyright notices in 17 * the code are not to be removed. If this code is used in a product, 18 * Eric Young should be given attribution as the author of the parts used. 19 * This can be in the form of a textual message at program startup or 20 * in documentation (online or textual) provided with the package. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * This product includes software developed by Eric Young (eay@mincom.oz.au) 33 * 34 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 35 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 36 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 37 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 38 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 39 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 40 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 41 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 42 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 43 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 44 * SUCH DAMAGE. 45 * 46 * The licence and distribution terms for any publically available version or 47 * derivative of this code cannot be changed. i.e. this code cannot simply be 48 * copied and put under another distribution licence 49 * [including the GNU Public Licence.] 50 */ 51 52 #include <sys/param.h> 53 #include <sys/systm.h> 54 #include <crypto/des/des_locl.h> 55 #include <crypto/des/spr.h> 56 57 /* char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay"; */ /* wrong */ 58 /* char *DES_version="DES part of SSLeay 0.6.4 30-Aug-1996"; */ 59 60 char *des_options(void) 61 { 62 static int init=1; 63 static char buf[32]; 64 65 if (init) 66 { 67 const char *ptr,*unroll,*risc,*size; 68 69 #ifdef DES_PTR 70 ptr="ptr"; 71 #else 72 ptr="idx"; 73 #endif 74 #if defined(DES_RISC1) || defined(DES_RISC2) 75 #ifdef DES_RISC1 76 risc="risc1"; 77 #endif 78 #ifdef DES_RISC2 79 risc="risc2"; 80 #endif 81 #else 82 risc="cisc"; 83 #endif 84 #ifdef DES_UNROLL 85 unroll="16"; 86 #else 87 unroll="4"; 88 #endif 89 if (sizeof(DES_LONG) != sizeof(long)) 90 size="int"; 91 else 92 size="long"; 93 ksprintf(buf,"des(%s,%s,%s,%s)",ptr,risc,unroll,size); 94 init=0; 95 } 96 return(buf); 97 } 98 void des_ecb_encrypt(des_cblock *input, des_cblock *output, 99 des_key_schedule ks, int enc) 100 { 101 DES_LONG l; 102 DES_LONG ll[2]; 103 const unsigned char *in=&(*input)[0]; 104 unsigned char *out = &(*output)[0]; 105 106 c2l(in,l); ll[0]=l; 107 c2l(in,l); ll[1]=l; 108 des_encrypt1(ll,ks,enc); 109 l=ll[0]; l2c(l,out); 110 l=ll[1]; l2c(l,out); 111 l=ll[0]=ll[1]=0; 112 } 113 114 void des_ecb3_encrypt(des_cblock *input, des_cblock *output, 115 des_key_schedule ks1, des_key_schedule ks2, des_key_schedule ks3, 116 int enc) 117 { 118 DES_LONG l0,l1; 119 DES_LONG ll[2]; 120 const unsigned char *in = &(*input)[0]; 121 unsigned char *out = &(*output)[0]; 122 123 c2l(in,l0); 124 c2l(in,l1); 125 ll[0]=l0; 126 ll[1]=l1; 127 128 if (enc) 129 des_encrypt3(ll,ks1,ks2,ks3); 130 else 131 des_decrypt3(ll,ks1,ks2,ks3); 132 133 l0=ll[0]; 134 l1=ll[1]; 135 l2c(l0,out); 136 l2c(l1,out); 137 } 138