| 1 | /* $NetBSD: des_ecb.c,v 1.10 2014/03/25 16:28:15 christos 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 1.10 2014/03/25 16:28:15 christos 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 | /*CONSTCOND*/ |
| 97 | if (sizeof(DES_LONG) != sizeof(long)) |
| 98 | size="int" ; |
| 99 | else |
| 100 | size="long" ; |
| 101 | snprintf(buf, sizeof(buf), "des(%s,%s,%s,%s)" , |
| 102 | ptr, risc, unroll, size); |
| 103 | init=0; |
| 104 | } |
| 105 | return(buf); |
| 106 | } |
| 107 | void des_ecb_encrypt(des_cblock *input, des_cblock *output, |
| 108 | des_key_schedule ks, int enc) |
| 109 | { |
| 110 | register DES_LONG l; |
| 111 | DES_LONG ll[2]; |
| 112 | const unsigned char *in=&(*input)[0]; |
| 113 | unsigned char *out = &(*output)[0]; |
| 114 | |
| 115 | c2l(in,l); ll[0]=l; |
| 116 | c2l(in,l); ll[1]=l; |
| 117 | des_encrypt1(ll,ks,enc); |
| 118 | l=ll[0]; l2c(l,out); |
| 119 | l=ll[1]; l2c(l,out); |
| 120 | l=ll[0]=ll[1]=0; |
| 121 | } |
| 122 | |
| 123 | void des_ecb3_encrypt(des_cblock *input, des_cblock *output, |
| 124 | des_key_schedule ks1, des_key_schedule ks2, des_key_schedule ks3, |
| 125 | int enc) |
| 126 | { |
| 127 | register DES_LONG l0,l1; |
| 128 | DES_LONG ll[2]; |
| 129 | const unsigned char *in = &(*input)[0]; |
| 130 | unsigned char *out = &(*output)[0]; |
| 131 | |
| 132 | c2l(in,l0); |
| 133 | c2l(in,l1); |
| 134 | ll[0]=l0; |
| 135 | ll[1]=l1; |
| 136 | |
| 137 | if (enc) |
| 138 | des_encrypt3(ll,ks1,ks2,ks3); |
| 139 | else |
| 140 | des_decrypt3(ll,ks1,ks2,ks3); |
| 141 | |
| 142 | l0=ll[0]; |
| 143 | l1=ll[1]; |
| 144 | l2c(l0,out); |
| 145 | l2c(l1,out); |
| 146 | } |
| 147 | |