1/* crypto/bf/bf_enc.c */
2/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
3 * All rights reserved.
4 *
5 * This package is an SSL implementation written
6 * by Eric Young (eay@mincom.oz.au).
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@mincom.oz.au).
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@mincom.oz.au)"
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@mincom.oz.au)"
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.]
| 4/* crypto/bf/bf_enc.c */
5/* Copyright (C) 1995-1997 Eric Young (eay@mincom.oz.au)
6 * All rights reserved.
7 *
8 * This package is 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 *
12 * This library is free for commercial and non-commercial use as long as
13 * the following conditions are aheared to. The following conditions
14 * apply to all code found in this distribution, be it the RC4, RSA,
15 * lhash, DES, etc., code; not just the SSL code. The SSL documentation
16 * included with this distribution is covered by the same copyright terms
17 * except that the holder is Tim Hudson (tjh@mincom.oz.au).
18 *
19 * Copyright remains Eric Young's, and as such any Copyright notices in
20 * the code are not to be removed.
21 * If this package is used in a product, Eric Young should be given attribution
22 * as the author of the parts of the library used.
23 * This can be in the form of a textual message at program startup or
24 * in documentation (online or textual) provided with the package.
25 *
26 * Redistribution and use in source and binary forms, with or without
27 * modification, are permitted provided that the following conditions
28 * are met:
29 * 1. Redistributions of source code must retain the copyright
30 * notice, this list of conditions and the following disclaimer.
31 * 2. Redistributions in binary form must reproduce the above copyright
32 * notice, this list of conditions and the following disclaimer in the
33 * documentation and/or other materials provided with the distribution.
34 * 3. All advertising materials mentioning features or use of this software
35 * must display the following acknowledgement:
36 * "This product includes cryptographic software written by
37 * Eric Young (eay@mincom.oz.au)"
38 * The word 'cryptographic' can be left out if the rouines from the library
39 * being used are not cryptographic related :-).
40 * 4. If you include any Windows specific code (or a derivative thereof) from
41 * the apps directory (application code) you must include an acknowledgement:
42 * "This product includes software written by Tim Hudson (tjh@mincom.oz.au)"
43 *
44 * THIS SOFTWARE IS PROVIDED BY ERIC YOUNG ``AS IS'' AND
45 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
46 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
47 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
48 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
49 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
50 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
51 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
52 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
53 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
54 * SUCH DAMAGE.
55 *
56 * The licence and distribution terms for any publically available version or
57 * derivative of this code cannot be changed. i.e. this code cannot simply be
58 * copied and put under another distribution licence
59 * [including the GNU Public Licence.]
|
59 */
60
61#include <crypto/blowfish/blowfish.h>
62#include <crypto/blowfish/bf_locl.h>
63
64/* Blowfish as implemented from 'Blowfish: Springer-Verlag paper'
65 * (From LECTURE NOTES IN COIMPUTER SCIENCE 809, FAST SOFTWARE ENCRYPTION,
66 * CAMBRIDGE SECURITY WORKSHOP, CAMBRIDGE, U.K., DECEMBER 9-11, 1993)
67 */
68
69#if (BF_ROUNDS != 16) && (BF_ROUNDS != 20)
70If you set BF_ROUNDS to some value other than 16 or 20, you will have
71to modify the code.
72#endif
73
74void BF_encrypt(data,key,encrypt)
75BF_LONG *data;
76BF_KEY *key;
77int encrypt;
78 {
79 register BF_LONG l,r,*p,*s;
80
81 p=key->P;
82 s= &(key->S[0]);
83 l=data[0];
84 r=data[1];
85
86 if (encrypt)
87 {
88 l^=p[0];
89 BF_ENC(r,l,s,p[ 1]);
90 BF_ENC(l,r,s,p[ 2]);
91 BF_ENC(r,l,s,p[ 3]);
92 BF_ENC(l,r,s,p[ 4]);
93 BF_ENC(r,l,s,p[ 5]);
94 BF_ENC(l,r,s,p[ 6]);
95 BF_ENC(r,l,s,p[ 7]);
96 BF_ENC(l,r,s,p[ 8]);
97 BF_ENC(r,l,s,p[ 9]);
98 BF_ENC(l,r,s,p[10]);
99 BF_ENC(r,l,s,p[11]);
100 BF_ENC(l,r,s,p[12]);
101 BF_ENC(r,l,s,p[13]);
102 BF_ENC(l,r,s,p[14]);
103 BF_ENC(r,l,s,p[15]);
104 BF_ENC(l,r,s,p[16]);
105#if BF_ROUNDS == 20
106 BF_ENC(r,l,s,p[17]);
107 BF_ENC(l,r,s,p[18]);
108 BF_ENC(r,l,s,p[19]);
109 BF_ENC(l,r,s,p[20]);
110#endif
111 r^=p[BF_ROUNDS+1];
112 }
113 else
114 {
115 l^=p[BF_ROUNDS+1];
116#if BF_ROUNDS == 20
117 BF_ENC(r,l,s,p[20]);
118 BF_ENC(l,r,s,p[19]);
119 BF_ENC(r,l,s,p[18]);
120 BF_ENC(l,r,s,p[17]);
121#endif
122 BF_ENC(r,l,s,p[16]);
123 BF_ENC(l,r,s,p[15]);
124 BF_ENC(r,l,s,p[14]);
125 BF_ENC(l,r,s,p[13]);
126 BF_ENC(r,l,s,p[12]);
127 BF_ENC(l,r,s,p[11]);
128 BF_ENC(r,l,s,p[10]);
129 BF_ENC(l,r,s,p[ 9]);
130 BF_ENC(r,l,s,p[ 8]);
131 BF_ENC(l,r,s,p[ 7]);
132 BF_ENC(r,l,s,p[ 6]);
133 BF_ENC(l,r,s,p[ 5]);
134 BF_ENC(r,l,s,p[ 4]);
135 BF_ENC(l,r,s,p[ 3]);
136 BF_ENC(r,l,s,p[ 2]);
137 BF_ENC(l,r,s,p[ 1]);
138 r^=p[0];
139 }
140 data[1]=l&0xffffffff;
141 data[0]=r&0xffffffff;
142 }
| 60 */
61
62#include <crypto/blowfish/blowfish.h>
63#include <crypto/blowfish/bf_locl.h>
64
65/* Blowfish as implemented from 'Blowfish: Springer-Verlag paper'
66 * (From LECTURE NOTES IN COIMPUTER SCIENCE 809, FAST SOFTWARE ENCRYPTION,
67 * CAMBRIDGE SECURITY WORKSHOP, CAMBRIDGE, U.K., DECEMBER 9-11, 1993)
68 */
69
70#if (BF_ROUNDS != 16) && (BF_ROUNDS != 20)
71If you set BF_ROUNDS to some value other than 16 or 20, you will have
72to modify the code.
73#endif
74
75void BF_encrypt(data,key,encrypt)
76BF_LONG *data;
77BF_KEY *key;
78int encrypt;
79 {
80 register BF_LONG l,r,*p,*s;
81
82 p=key->P;
83 s= &(key->S[0]);
84 l=data[0];
85 r=data[1];
86
87 if (encrypt)
88 {
89 l^=p[0];
90 BF_ENC(r,l,s,p[ 1]);
91 BF_ENC(l,r,s,p[ 2]);
92 BF_ENC(r,l,s,p[ 3]);
93 BF_ENC(l,r,s,p[ 4]);
94 BF_ENC(r,l,s,p[ 5]);
95 BF_ENC(l,r,s,p[ 6]);
96 BF_ENC(r,l,s,p[ 7]);
97 BF_ENC(l,r,s,p[ 8]);
98 BF_ENC(r,l,s,p[ 9]);
99 BF_ENC(l,r,s,p[10]);
100 BF_ENC(r,l,s,p[11]);
101 BF_ENC(l,r,s,p[12]);
102 BF_ENC(r,l,s,p[13]);
103 BF_ENC(l,r,s,p[14]);
104 BF_ENC(r,l,s,p[15]);
105 BF_ENC(l,r,s,p[16]);
106#if BF_ROUNDS == 20
107 BF_ENC(r,l,s,p[17]);
108 BF_ENC(l,r,s,p[18]);
109 BF_ENC(r,l,s,p[19]);
110 BF_ENC(l,r,s,p[20]);
111#endif
112 r^=p[BF_ROUNDS+1];
113 }
114 else
115 {
116 l^=p[BF_ROUNDS+1];
117#if BF_ROUNDS == 20
118 BF_ENC(r,l,s,p[20]);
119 BF_ENC(l,r,s,p[19]);
120 BF_ENC(r,l,s,p[18]);
121 BF_ENC(l,r,s,p[17]);
122#endif
123 BF_ENC(r,l,s,p[16]);
124 BF_ENC(l,r,s,p[15]);
125 BF_ENC(r,l,s,p[14]);
126 BF_ENC(l,r,s,p[13]);
127 BF_ENC(r,l,s,p[12]);
128 BF_ENC(l,r,s,p[11]);
129 BF_ENC(r,l,s,p[10]);
130 BF_ENC(l,r,s,p[ 9]);
131 BF_ENC(r,l,s,p[ 8]);
132 BF_ENC(l,r,s,p[ 7]);
133 BF_ENC(r,l,s,p[ 6]);
134 BF_ENC(l,r,s,p[ 5]);
135 BF_ENC(r,l,s,p[ 4]);
136 BF_ENC(l,r,s,p[ 3]);
137 BF_ENC(r,l,s,p[ 2]);
138 BF_ENC(l,r,s,p[ 1]);
139 r^=p[0];
140 }
141 data[1]=l&0xffffffff;
142 data[0]=r&0xffffffff;
143 }
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