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160 lines
5.2 KiB
C
160 lines
5.2 KiB
C
/*
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* mksp.c
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*
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* Generate SP tables for DES-150 library
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*
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* ***** BEGIN LICENSE BLOCK *****
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* Version: MPL 1.1/GPL 2.0/LGPL 2.1
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*
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* The contents of this file are subject to the Mozilla Public License Version
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* 1.1 (the "License"); you may not use this file except in compliance with
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* the License. You may obtain a copy of the License at
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* http://www.mozilla.org/MPL/
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*
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* Software distributed under the License is distributed on an "AS IS" basis,
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* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
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* for the specific language governing rights and limitations under the
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* License.
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*
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* The Original Code is the DES-150 library.
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*
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* The Initial Developer of the Original Code is
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* Nelson B. Bolyard, nelsonb@iname.com.
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* Portions created by the Initial Developer are Copyright (C) 1990
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* the Initial Developer. All Rights Reserved.
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*
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* Contributor(s):
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*
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* Alternatively, the contents of this file may be used under the terms of
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* either the GNU General Public License Version 2 or later (the "GPL"), or
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* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
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* in which case the provisions of the GPL or the LGPL are applicable instead
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* of those above. If you wish to allow use of your version of this file only
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* under the terms of either the GPL or the LGPL, and not to allow others to
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* use your version of this file under the terms of the MPL, indicate your
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* decision by deleting the provisions above and replace them with the notice
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* and other provisions required by the GPL or the LGPL. If you do not delete
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* the provisions above, a recipient may use your version of this file under
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* the terms of any one of the MPL, the GPL or the LGPL.
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*
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* ***** END LICENSE BLOCK ***** */
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#include <stdio.h>
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/*
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* sboxes - the tables for the s-box functions
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* from FIPS 46, pages 15-16.
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*/
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unsigned char S[8][64] = {
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/* Func S1 = */ {
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14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1,
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3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8,
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4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7,
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15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13
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},
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/* Func S2 = */ {
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15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14,
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9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5,
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0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2,
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5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9
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},
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/* Func S3 = */ {
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10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10,
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1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1,
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13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7,
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11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12
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},
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/* Func S4 = */ {
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7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3,
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1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9,
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10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8,
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15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14
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},
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/* Func S5 = */ {
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2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1,
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8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6,
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4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13,
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15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3
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},
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/* Func S6 = */ {
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12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5,
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0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8,
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9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10,
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7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13
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},
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/* Func S7 = */ {
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4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10,
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3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6,
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1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7,
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10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12
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},
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/* Func S8 = */ {
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13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4,
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10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2,
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7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13,
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0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11
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}
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};
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/*
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* Permutation function for results from s-boxes
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* from FIPS 46 pages 12 and 16.
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* P =
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*/
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unsigned char P[32] = {
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16, 7, 20, 21, 29, 12, 28, 17,
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1, 15, 23, 26, 5, 18, 31, 10,
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2, 8, 24, 14, 32, 27, 3, 9,
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19, 13, 30, 6, 22, 11, 4, 25
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};
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unsigned int Pinv[32];
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unsigned int SP[8][64];
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void
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makePinv(void)
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{
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int i;
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unsigned int Pi = 0x80000000;
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for (i = 0; i < 32; ++i) {
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int j = 32 - P[i];
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Pinv[j] = Pi;
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Pi >>= 1;
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}
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}
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void
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makeSP(void)
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{
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int box;
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for (box = 0; box < 8; ++box) {
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int item;
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printf("/* box S%d */ {\n", box + 1);
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for (item = 0; item < 64; ++item ) {
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unsigned int s = S[box][item];
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unsigned int val = 0;
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unsigned int bitnum = (7-box) * 4;
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for (; s; s >>= 1, ++bitnum) {
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if (s & 1) {
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val |= Pinv[bitnum];
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}
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}
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val = (val << 3) | (val >> 29);
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SP[box][item] = val;
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}
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for (item = 0; item < 64; item += 4) {
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printf("\t0x%08x, 0x%08x, 0x%08x, 0x%08x,\n",
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SP[box][item], SP[box][item+1], SP[box][item+2], SP[box][item+3]);
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}
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printf(" },\n");
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}
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}
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int
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main()
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{
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makePinv();
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makeSP();
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return 0;
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}
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