1 /* $OpenBSD: ecb3_enc.c,v 1.2 2002/10/27 13:24:26 miod Exp $ */ 2 3 /* lib/des/ecb3_enc.c */ 4 /* Copyright (C) 1995 Eric Young (eay@mincom.oz.au) 5 * All rights reserved. 6 * 7 * This file is part of an SSL implementation written 8 * by Eric Young (eay@mincom.oz.au). 9 * The implementation was written so as to conform with Netscapes SSL 10 * specification. This library and applications are 11 * FREE FOR COMMERCIAL AND NON-COMMERCIAL USE 12 * as long as the following conditions are aheared to. 13 * 14 * Copyright remains Eric Young's, and as such any Copyright notices in 15 * the code are not to be removed. If this code is used in a product, 16 * Eric Young should be given attribution as the author of the parts used. 17 * This can be in the form of a textual message at program startup or 18 * in documentation (online or textual) provided with the package. 19 * 20 * Redistribution and use in source and binary forms, with or without 21 * modification, are permitted provided that the following conditions 22 * are met: 23 * 1. Redistributions of source code must retain the copyright 24 * notice, this list of conditions and the following disclaimer. 25 * 2. Redistributions in binary form must reproduce the above copyright 26 * notice, this list of conditions and the following disclaimer in the 27 * documentation and/or other materials provided with the distribution. 28 * 3. All advertising materials mentioning features or use of this software 29 * must display the following acknowledgement: 30 * This product includes software developed by Eric Young (eay@mincom.oz.au) 31 * 32 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND 33 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 34 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 35 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 36 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 37 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 38 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 39 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 40 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 41 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 42 * SUCH DAMAGE. 43 * 44 * The licence and distribution terms for any publically available version or 45 * derivative of this code cannot be changed. i.e. this code cannot simply be 46 * copied and put under another distribution licence 47 * [including the GNU Public Licence.] 48 */ 49 50 #include "des_locl.h" 51 52 void des_ecb3_encrypt(input, output, ks1, ks2, ks3, encrypt) 53 des_cblock (*input); 54 des_cblock (*output); 55 des_key_schedule ks1; 56 des_key_schedule ks2; 57 des_key_schedule ks3; 58 int encrypt; 59 { 60 register u_int32_t l0,l1; 61 register unsigned char *in,*out; 62 u_int32_t ll[2]; 63 64 in=(unsigned char *)input; 65 out=(unsigned char *)output; 66 c2l(in,l0); 67 c2l(in,l1); 68 IP(l0,l1); 69 ll[0]=l0; 70 ll[1]=l1; 71 des_encrypt2(ll,ks1,encrypt); 72 des_encrypt2(ll,ks2,!encrypt); 73 des_encrypt2(ll,ks3,encrypt); 74 l0=ll[0]; 75 l1=ll[1]; 76 FP(l1,l0); 77 l2c(l0,out); 78 l2c(l1,out); 79 } 80