1 2 /*- 3 * Copyright (c) 2009, Sun Microsystems, Inc. 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions are met: 8 * - Redistributions of source code must retain the above copyright notice, 9 * this list of conditions and the following disclaimer. 10 * - Redistributions in binary form must reproduce the above copyright notice, 11 * this list of conditions and the following disclaimer in the documentation 12 * and/or other materials provided with the distribution. 13 * - Neither the name of Sun Microsystems, Inc. nor the names of its 14 * contributors may be used to endorse or promote products derived 15 * from this software without specific prior written permission. 16 * 17 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 18 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 20 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 21 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 22 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 23 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 24 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 25 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 26 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 27 * POSSIBILITY OF SUCH DAMAGE. 28 */ 29 30 #include <rpc/des_crypt.h> 31 32 /* 33 * Table giving odd parity in the low bit for ASCII characters 34 */ 35 static char partab[128] = { 36 0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x07, 0x07, 37 0x08, 0x08, 0x0b, 0x0b, 0x0d, 0x0d, 0x0e, 0x0e, 38 0x10, 0x10, 0x13, 0x13, 0x15, 0x15, 0x16, 0x16, 39 0x19, 0x19, 0x1a, 0x1a, 0x1c, 0x1c, 0x1f, 0x1f, 40 0x20, 0x20, 0x23, 0x23, 0x25, 0x25, 0x26, 0x26, 41 0x29, 0x29, 0x2a, 0x2a, 0x2c, 0x2c, 0x2f, 0x2f, 42 0x31, 0x31, 0x32, 0x32, 0x34, 0x34, 0x37, 0x37, 43 0x38, 0x38, 0x3b, 0x3b, 0x3d, 0x3d, 0x3e, 0x3e, 44 0x40, 0x40, 0x43, 0x43, 0x45, 0x45, 0x46, 0x46, 45 0x49, 0x49, 0x4a, 0x4a, 0x4c, 0x4c, 0x4f, 0x4f, 46 0x51, 0x51, 0x52, 0x52, 0x54, 0x54, 0x57, 0x57, 47 0x58, 0x58, 0x5b, 0x5b, 0x5d, 0x5d, 0x5e, 0x5e, 48 0x61, 0x61, 0x62, 0x62, 0x64, 0x64, 0x67, 0x67, 49 0x68, 0x68, 0x6b, 0x6b, 0x6d, 0x6d, 0x6e, 0x6e, 50 0x70, 0x70, 0x73, 0x73, 0x75, 0x75, 0x76, 0x76, 51 0x79, 0x79, 0x7a, 0x7a, 0x7c, 0x7c, 0x7f, 0x7f, 52 }; 53 54 /* 55 * Add odd parity to low bit of 8 byte key 56 */ 57 void 58 des_setparity(char *p) 59 { 60 int i; 61 62 for (i = 0; i < 8; i++) { 63 *p = partab[*p & 0x7f]; 64 p++; 65 } 66 } 67