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1.1 root 1: /* crypto/bf/bf_ecb.c */
2: /* Copyright (C) 1995-1997 Eric Young ([email protected])
3: * All rights reserved.
4: *
5: * This package is an SSL implementation written
6: * by Eric Young ([email protected]).
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 ([email protected]).
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 ([email protected])"
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 ([email protected])"
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:
1.1.1.2 root 59: /* Adapted for TrueCrypt by the TrueCrypt Foundation */
60:
61: #include "Blowfish.h"
62: #include "Bf_locl.h"
1.1.1.3 ! root 63: #include "Common/Endian.h"
1.1 root 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: char *BF_version="BlowFish part of SSLeay 0.8.2b 08-Jan-1998";
71:
72: char *BF_options()
73: {
74: #ifdef BF_PTR
75: return("blowfish(ptr)");
76: #elif defined(BF_PTR2)
77: return("blowfish(ptr2)");
78: #else
79: return("blowfish(idx)");
80: #endif
81: }
82:
83: void BF_ecb_encrypt(in, out, ks, encrypt)
84: unsigned char *in;
85: unsigned char *out;
86: BF_KEY *ks;
87: int encrypt;
88: {
89: BF_LONG l,d[2];
90:
91: n2l(in,l); d[0]=l;
92: n2l(in,l); d[1]=l;
93: if (encrypt)
94: BF_encrypt(d,ks);
95: else
96: BF_decrypt(d,ks);
97: l=d[0]; l2n(l,out);
98: l=d[1]; l2n(l,out);
99: l=d[0]=d[1]=0;
100: }
101:
1.1.1.2 root 102: void BF_ecb_le_encrypt(in, out, ks, encrypt)
103: unsigned char *in;
104: unsigned char *out;
105: BF_KEY *ks;
106: int encrypt;
107: {
108: BF_LONG d[2];
109:
110: d[0] = LE32(((BF_LONG *)in)[0]);
111: d[1] = LE32(((BF_LONG *)in)[1]);
112: if (encrypt)
113: BF_encrypt(d,ks);
114: else
115: BF_decrypt(d,ks);
116: ((BF_LONG *)out)[0] = LE32(d[0]);
117: ((BF_LONG *)out)[1] = LE32(d[1]);
118: d[0]=d[1]=0;
119: }
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