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/*
* $Source$
* $Author$
* $Id$
*
* Copyright 1988,1990 by the Massachusetts Institute of Technology.
* All Rights Reserved.
*
* Export of this software from the United States of America is assumed
* to require a specific license from the United States Government.
* It is the responsibility of any person or organization contemplating
* export to obtain such a license before exporting.
*
* WITHIN THAT CONSTRAINT, permission to use, copy, modify, and
* distribute this software and its documentation for any purpose and
* without fee is hereby granted, provided that the above copyright
* notice appear in all copies and that both that copyright notice and
* this permission notice appear in supporting documentation, and that
* the name of M.I.T. not be used in advertising or publicity pertaining
* to distribution of the software without specific, written prior
* permission. M.I.T. makes no representations about the suitability of
* this software for any purpose. It is provided "as is" without express
* or implied warranty.
*
*
* part of the Athena Kerberos encryption system
*
* spm 8/85
*/
/*
* Initial permutation, adjust to zero based subscript
*/
static char IP[] = {
58-1, 50-1, 42-1, 34-1, 26-1, 18-1, 10-1, 2-1,
60-1, 52-1, 44-1, 36-1, 28-1, 20-1, 12-1, 4-1,
62-1, 54-1, 46-1, 38-1, 30-1, 22-1, 14-1, 6-1,
64-1, 56-1, 48-1, 40-1, 32-1, 24-1, 16-1, 8-1,
57-1, 49-1, 41-1, 33-1, 25-1, 17-1, 9-1, 1-1,
59-1, 51-1, 43-1, 35-1, 27-1, 19-1, 11-1, 3-1,
61-1, 53-1, 45-1, 37-1, 29-1, 21-1, 13-1, 5-1,
63-1, 55-1, 47-1, 39-1, 31-1, 23-1, 15-1, 7-1,
};
/*
* Final permutation, FP = IP^(-1) adjust to zero based subscript
*/
static char FP[] = {
40-1, 8-1, 48-1, 16-1, 56-1, 24-1, 64-1, 32-1,
39-1, 7-1, 47-1, 15-1, 55-1, 23-1, 63-1, 31-1,
38-1, 6-1, 46-1, 14-1, 54-1, 22-1, 62-1, 30-1,
37-1, 5-1, 45-1, 13-1, 53-1, 21-1, 61-1, 29-1,
36-1, 4-1, 44-1, 12-1, 52-1, 20-1, 60-1, 28-1,
35-1, 3-1, 43-1, 11-1, 51-1, 19-1, 59-1, 27-1,
34-1, 2-1, 42-1, 10-1, 50-1, 18-1, 58-1, 26-1,
33-1, 1-1, 41-1, 9-1, 49-1, 17-1, 57-1, 25-1,
};
/* the E selection function, adjusted to zero based subscripts */
static char E[] = {
32-1, 1-1, 2-1, 3-1, 4-1, 5-1,
4-1, 5-1, 6-1, 7-1, 8-1, 9-1,
8-1, 9-1, 10-1, 11-1, 12-1, 13-1,
12-1, 13-1, 14-1, 15-1, 16-1, 17-1,
16-1, 17-1, 18-1, 19-1, 20-1, 21-1,
20-1, 21-1, 22-1, 23-1, 24-1, 25-1,
24-1, 25-1, 26-1, 27-1, 28-1, 29-1,
28-1, 29-1, 30-1, 31-1, 32-1, 1-1,
};
/* the P permutation, adjusted to zero based subscripts */
static char P[] = {
16-1, 7-1, 20-1, 21-1,
29-1, 12-1, 28-1, 17-1,
1-1, 15-1, 23-1, 26-1,
5-1, 18-1, 31-1, 10-1,
2-1, 8-1, 24-1, 14-1,
32-1, 27-1, 3-1, 9-1,
19-1, 13-1, 30-1, 6-1,
22-1, 11-1, 4-1, 25-1,
};
/* S tables, original form */
static char S[8][64] = {
14, 4,13, 1, 2,15,11, 8, 3,10, 6,12, 5, 9, 0, 7,
0,15, 7, 4,14, 2,13, 1,10, 6,12,11, 9, 5, 3, 8,
4, 1,14, 8,13, 6, 2,11,15,12, 9, 7, 3,10, 5, 0,
15,12, 8, 2, 4, 9, 1, 7, 5,11, 3,14,10, 0, 6,13,
15, 1, 8,14, 6,11, 3, 4, 9, 7, 2,13,12, 0, 5,10,
3,13, 4, 7,15, 2, 8,14,12, 0, 1,10, 6, 9,11, 5,
0,14, 7,11,10, 4,13, 1, 5, 8,12, 6, 9, 3, 2,15,
13, 8,10, 1, 3,15, 4, 2,11, 6, 7,12, 0, 5,14, 9,
10, 0, 9,14, 6, 3,15, 5, 1,13,12, 7,11, 4, 2, 8,
13, 7, 0, 9, 3, 4, 6,10, 2, 8, 5,14,12,11,15, 1,
13, 6, 4, 9, 8,15, 3, 0,11, 1, 2,12, 5,10,14, 7,
1,10,13, 0, 6, 9, 8, 7, 4,15,14, 3,11, 5, 2,12,
7,13,14, 3, 0, 6, 9,10, 1, 2, 8, 5,11,12, 4,15,
13, 8,11, 5, 6,15, 0, 3, 4, 7, 2,12, 1,10,14, 9,
10, 6, 9, 0,12,11, 7,13,15, 1, 3,14, 5, 2, 8, 4,
3,15, 0, 6,10, 1,13, 8, 9, 4, 5,11,12, 7, 2,14,
2,12, 4, 1, 7,10,11, 6, 8, 5, 3,15,13, 0,14, 9,
14,11, 2,12, 4, 7,13, 1, 5, 0,15,10, 3, 9, 8, 6,
4, 2, 1,11,10,13, 7, 8,15, 9,12, 5, 6, 3, 0,14,
11, 8,12, 7, 1,14, 2,13, 6,15, 0, 9,10, 4, 5, 3,
12, 1,10,15, 9, 2, 6, 8, 0,13, 3, 4,14, 7, 5,11,
10,15, 4, 2, 7,12, 9, 5, 6, 1,13,14, 0,11, 3, 8,
9,14,15, 5, 2, 8,12, 3, 7, 0, 4,10, 1,13,11, 6,
4, 3, 2,12, 9, 5,15,10,11,14, 1, 7, 6, 0, 8,13,
4,11, 2,14,15, 0, 8,13, 3,12, 9, 7, 5,10, 6, 1,
13, 0,11, 7, 4, 9, 1,10,14, 3, 5,12, 2,15, 8, 6,
1, 4,11,13,12, 3, 7,14,10,15, 6, 8, 0, 5, 9, 2,
6,11,13, 8, 1, 4,10, 7, 9, 5, 0,15,14, 2, 3,12,
13, 2, 8, 4, 6,15,11, 1,10, 9, 3,14, 5, 0,12, 7,
1,15,13, 8,10, 3, 7, 4,12, 5, 6,11, 0,14, 9, 2,
7,11, 4, 1, 9,12,14, 2, 0, 6,10,13,15, 3, 5, 8,
2, 1,14, 7, 4,10, 8,13,15,12, 9, 0, 3, 5, 6,11,
};
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