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1.1 root 1: /* crypto/bf/bf_skey.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: #ifndef LINUX_DRIVER
1.1 root 60: #include <stdio.h>
61: #include <string.h>
1.1.1.2 ! root 62: #else
! 63: #include <linux/string.h>
! 64: #endif
! 65:
! 66: #include "Blowfish.h"
! 67: #include "Bf_locl.h"
! 68: #include "Bf_pi.h"
1.1 root 69:
70: #pragma intrinsic(memcpy)
71:
72: #pragma warning( disable : 4131 )
73:
74: void _cdecl BF_set_key(key,len,data)
75: BF_KEY *key;
76: int len;
77: unsigned char *data;
78: {
79: int i;
80: BF_LONG *p,ri,in[2];
81: unsigned char *d,*end;
82:
83:
84: memcpy((char *)key,(char *)&bf_init,sizeof(BF_KEY));
85: p=key->P;
86:
87: if (len > ((BF_ROUNDS+2)*4)) len=(BF_ROUNDS+2)*4;
88:
89: d=data;
90: end= &(data[len]);
91: for (i=0; i<(BF_ROUNDS+2); i++)
92: {
93: ri= *(d++);
94: if (d >= end) d=data;
95:
96: ri<<=8;
97: ri|= *(d++);
98: if (d >= end) d=data;
99:
100: ri<<=8;
101: ri|= *(d++);
102: if (d >= end) d=data;
103:
104: ri<<=8;
105: ri|= *(d++);
106: if (d >= end) d=data;
107:
108: p[i]^=ri;
109: }
110:
111: in[0]=0L;
112: in[1]=0L;
113: for (i=0; i<(BF_ROUNDS+2); i+=2)
114: {
115: BF_encrypt(in,key);
116: p[i ]=in[0];
117: p[i+1]=in[1];
118: }
119:
120: p=key->S;
121: for (i=0; i<4*256; i+=2)
122: {
123: BF_encrypt(in,key);
124: p[i ]=in[0];
125: p[i+1]=in[1];
126: }
127: }
128:
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