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[strongswan.git] / src / libfreeswan / libcrypto / oldlibdes / des / ecb_enc.c
1 /* crypto/des/ecb_enc.c */
2 /* Copyright (C) 1995-1997 Eric Young (eay@cryptsoft.com)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@cryptsoft.com).
7 * The implementation was written so as to conform with Netscapes SSL.
8 *
9 * This library is free for commercial and non-commercial use as long as
10 * the following conditions are aheared to. The following conditions
11 * apply to all code found in this distribution, be it the RC4, RSA,
12 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
13 * included with this distribution is covered by the same copyright terms
14 * except that the holder is Tim Hudson (tjh@cryptsoft.com).
15 *
16 * Copyright remains Eric Young's, and as such any Copyright notices in
17 * the code are not to be removed.
18 * If this package is used in a product, Eric Young should be given attribution
19 * as the author of the parts of the library used.
20 * This can be in the form of a textual message at program startup or
21 * in documentation (online or textual) provided with the package.
22 *
23 * Redistribution and use in source and binary forms, with or without
24 * modification, are permitted provided that the following conditions
25 * are met:
26 * 1. Redistributions of source code must retain the copyright
27 * notice, this list of conditions and the following disclaimer.
28 * 2. Redistributions in binary form must reproduce the above copyright
29 * notice, this list of conditions and the following disclaimer in the
30 * documentation and/or other materials provided with the distribution.
31 * 3. All advertising materials mentioning features or use of this software
32 * must display the following acknowledgement:
33 * "This product includes cryptographic software written by
34 * Eric Young (eay@cryptsoft.com)"
35 * The word 'cryptographic' can be left out if the rouines from the library
36 * being used are not cryptographic related :-).
37 * 4. If you include any Windows specific code (or a derivative thereof) from
38 * the apps directory (application code) you must include an acknowledgement:
39 * "This product includes software written by Tim Hudson (tjh@cryptsoft.com)"
40 *
41 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
42 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
43 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
44 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
45 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
46 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
47 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
48 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
49 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
50 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
51 * SUCH DAMAGE.
52 *
53 * The licence and distribution terms for any publically available version or
54 * derivative of this code cannot be changed. i.e. this code cannot simply be
55 * copied and put under another distribution licence
56 * [including the GNU Public Licence.]
57 */
58
59 #include "des_locl.h"
60 #include "spr.h"
61
62 char *libdes_version="libdes v 3.24 - 20-Apr-1996 - eay";
63 char *DES_version="DES part of SSLeay 0.8.2b 08-Jan-1998";
64
65 /* RCSID $Id: ecb_enc.c,v 1.1 2004/03/15 20:35:25 as Exp $ */
66 /* This function ifdef'ed out for FreeS/WAN project. */
67 #ifdef notdef
68 char *des_options()
69 {
70 static int init=1;
71 static char buf[32];
72
73 if (init)
74 {
75 char *ptr,*unroll,*risc,*size;
76
77 init=0;
78 #ifdef DES_PTR
79 ptr="ptr";
80 #else
81 ptr="idx";
82 #endif
83 #if defined(DES_RISC1) || defined(DES_RISC2)
84 #ifdef DES_RISC1
85 risc="risc1";
86 #endif
87 #ifdef DES_RISC2
88 risc="risc2";
89 #endif
90 #else
91 risc="cisc";
92 #endif
93 #ifdef DES_UNROLL
94 unroll="16";
95 #else
96 unroll="4";
97 #endif
98 if (sizeof(DES_LONG) != sizeof(long))
99 size="int";
100 else
101 size="long";
102 sprintf(buf,"des(%s,%s,%s,%s)",ptr,risc,unroll,size);
103 }
104 return(buf);
105 }
106 #endif
107
108
109 void des_ecb_encrypt(input, output, ks, enc)
110 des_cblock (*input);
111 des_cblock (*output);
112 des_key_schedule ks;
113 int enc;
114 {
115 register DES_LONG l;
116 register unsigned char *in,*out;
117 DES_LONG ll[2];
118
119 in=(unsigned char *)input;
120 out=(unsigned char *)output;
121 c2l(in,l); ll[0]=l;
122 c2l(in,l); ll[1]=l;
123 des_encrypt(ll,ks,enc);
124 l=ll[0]; l2c(l,out);
125 l=ll[1]; l2c(l,out);
126 l=ll[0]=ll[1]=0;
127 }
128