1 /* $KAME: des_ecb.c,v 1.6 2001/09/10 04:03:58 itojun Exp $ */ 2 3 /* crypto/des/ecb_enc.c */ 4 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 #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 sprintf(buf,"des(%s,%s,%s,%s)",ptr,risc,unroll,size); 94 init=0; 95 } 96 return(buf); 97 } 98 void des_ecb_encrypt(unsigned char *input, unsigned char *output, 99 des_key_schedule ks, int enc) 100 { 101 register DES_LONG l; 102 DES_LONG ll[2]; 103 const unsigned char *in = input; 104 unsigned char *out = output; 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(unsigned char *input, unsigned char *output, 115 des_key_schedule ks1, des_key_schedule ks2, des_key_schedule ks3, 116 int enc) 117 { 118 register DES_LONG l0,l1; 119 DES_LONG ll[2]; 120 const unsigned char *in = input; 121 unsigned char *out = output; 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