Annotation of sys/crypto/ecb3_enc.c, Revision 1.1.1.1
1.1 nbrk 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: }
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