12e322d37SHiroki Sato /*-
2*8a16b7a1SPedro F. Giffuni * SPDX-License-Identifier: BSD-3-Clause
3*8a16b7a1SPedro F. Giffuni *
42e322d37SHiroki Sato * Copyright (c) 2009, Sun Microsystems, Inc.
52e322d37SHiroki Sato * All rights reserved.
6e8636dfdSBill Paul *
72e322d37SHiroki Sato * Redistribution and use in source and binary forms, with or without
82e322d37SHiroki Sato * modification, are permitted provided that the following conditions are met:
92e322d37SHiroki Sato * - Redistributions of source code must retain the above copyright notice,
102e322d37SHiroki Sato * this list of conditions and the following disclaimer.
112e322d37SHiroki Sato * - Redistributions in binary form must reproduce the above copyright notice,
122e322d37SHiroki Sato * this list of conditions and the following disclaimer in the documentation
132e322d37SHiroki Sato * and/or other materials provided with the distribution.
142e322d37SHiroki Sato * - Neither the name of Sun Microsystems, Inc. nor the names of its
152e322d37SHiroki Sato * contributors may be used to endorse or promote products derived
162e322d37SHiroki Sato * from this software without specific prior written permission.
17e8636dfdSBill Paul *
182e322d37SHiroki Sato * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
192e322d37SHiroki Sato * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
202e322d37SHiroki Sato * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
212e322d37SHiroki Sato * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
222e322d37SHiroki Sato * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
232e322d37SHiroki Sato * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
242e322d37SHiroki Sato * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
252e322d37SHiroki Sato * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
262e322d37SHiroki Sato * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
272e322d37SHiroki Sato * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
282e322d37SHiroki Sato * POSSIBILITY OF SUCH DAMAGE.
29e8636dfdSBill Paul */
30a986ef57SDavid E. O'Brien
31e8636dfdSBill Paul /*
32e8636dfdSBill Paul * Table giving odd parity in the low bit for ASCII characters
33e8636dfdSBill Paul */
34e8636dfdSBill Paul static char partab[128] = {
35e8636dfdSBill Paul 0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x07, 0x07,
36e8636dfdSBill Paul 0x08, 0x08, 0x0b, 0x0b, 0x0d, 0x0d, 0x0e, 0x0e,
37e8636dfdSBill Paul 0x10, 0x10, 0x13, 0x13, 0x15, 0x15, 0x16, 0x16,
38e8636dfdSBill Paul 0x19, 0x19, 0x1a, 0x1a, 0x1c, 0x1c, 0x1f, 0x1f,
39e8636dfdSBill Paul 0x20, 0x20, 0x23, 0x23, 0x25, 0x25, 0x26, 0x26,
40e8636dfdSBill Paul 0x29, 0x29, 0x2a, 0x2a, 0x2c, 0x2c, 0x2f, 0x2f,
41e8636dfdSBill Paul 0x31, 0x31, 0x32, 0x32, 0x34, 0x34, 0x37, 0x37,
42e8636dfdSBill Paul 0x38, 0x38, 0x3b, 0x3b, 0x3d, 0x3d, 0x3e, 0x3e,
43e8636dfdSBill Paul 0x40, 0x40, 0x43, 0x43, 0x45, 0x45, 0x46, 0x46,
44e8636dfdSBill Paul 0x49, 0x49, 0x4a, 0x4a, 0x4c, 0x4c, 0x4f, 0x4f,
45e8636dfdSBill Paul 0x51, 0x51, 0x52, 0x52, 0x54, 0x54, 0x57, 0x57,
46e8636dfdSBill Paul 0x58, 0x58, 0x5b, 0x5b, 0x5d, 0x5d, 0x5e, 0x5e,
47e8636dfdSBill Paul 0x61, 0x61, 0x62, 0x62, 0x64, 0x64, 0x67, 0x67,
48e8636dfdSBill Paul 0x68, 0x68, 0x6b, 0x6b, 0x6d, 0x6d, 0x6e, 0x6e,
49e8636dfdSBill Paul 0x70, 0x70, 0x73, 0x73, 0x75, 0x75, 0x76, 0x76,
50e8636dfdSBill Paul 0x79, 0x79, 0x7a, 0x7a, 0x7c, 0x7c, 0x7f, 0x7f,
51e8636dfdSBill Paul };
52e8636dfdSBill Paul
53e8636dfdSBill Paul /*
54e8636dfdSBill Paul * Add odd parity to low bit of 8 byte key
55e8636dfdSBill Paul */
56e8636dfdSBill Paul void
des_setparity(char * p)5768895e38SCraig Rodrigues des_setparity(char *p)
58e8636dfdSBill Paul {
59e8636dfdSBill Paul int i;
60e8636dfdSBill Paul
61e8636dfdSBill Paul for (i = 0; i < 8; i++) {
62e8636dfdSBill Paul *p = partab[*p & 0x7f];
63e8636dfdSBill Paul p++;
64e8636dfdSBill Paul }
65e8636dfdSBill Paul }
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