mksp.c
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上传日期:2007-01-12
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- /*
- * mksp.c
- *
- * Generate SP tables for DES-150 library
- *
- * The contents of this file are subject to the Mozilla Public
- * License Version 1.1 (the "License"); you may not use this file
- * except in compliance with the License. You may obtain a copy of
- * the License at http://www.mozilla.org/MPL/
- *
- * Software distributed under the License is distributed on an "AS
- * IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
- * implied. See the License for the specific language governing
- * rights and limitations under the License.
- *
- * The Original Code is the DES-150 library.
- *
- * The Initial Developer of the Original Code is Nelson B. Bolyard,
- * nelsonb@iname.com. Portions created by Nelson B. Bolyard are
- * Copyright (C) 1990, 2000 Nelson B. Bolyard, All Rights Reserved.
- *
- * Contributor(s):
- *
- * Alternatively, the contents of this file may be used under the
- * terms of the GNU General Public License Version 2 or later (the
- * "GPL"), in which case the provisions of the GPL are applicable
- * instead of those above. If you wish to allow use of your
- * version of this file only under the terms of the GPL and not to
- * allow others to use your version of this file under the MPL,
- * indicate your decision by deleting the provisions above and
- * replace them with the notice and other provisions required by
- * the GPL. If you do not delete the provisions above, a recipient
- * may use your version of this file under either the MPL or the GPL.
- */
- #include <stdio.h>
- /*
- * sboxes - the tables for the s-box functions
- * from FIPS 46, pages 15-16.
- */
- unsigned char S[8][64] = {
- /* Func S1 = */ {
- 14, 0, 4, 15, 13, 7, 1, 4, 2, 14, 15, 2, 11, 13, 8, 1,
- 3, 10, 10, 6, 6, 12, 12, 11, 5, 9, 9, 5, 0, 3, 7, 8,
- 4, 15, 1, 12, 14, 8, 8, 2, 13, 4, 6, 9, 2, 1, 11, 7,
- 15, 5, 12, 11, 9, 3, 7, 14, 3, 10, 10, 0, 5, 6, 0, 13
- },
- /* Func S2 = */ {
- 15, 3, 1, 13, 8, 4, 14, 7, 6, 15, 11, 2, 3, 8, 4, 14,
- 9, 12, 7, 0, 2, 1, 13, 10, 12, 6, 0, 9, 5, 11, 10, 5,
- 0, 13, 14, 8, 7, 10, 11, 1, 10, 3, 4, 15, 13, 4, 1, 2,
- 5, 11, 8, 6, 12, 7, 6, 12, 9, 0, 3, 5, 2, 14, 15, 9
- },
- /* Func S3 = */ {
- 10, 13, 0, 7, 9, 0, 14, 9, 6, 3, 3, 4, 15, 6, 5, 10,
- 1, 2, 13, 8, 12, 5, 7, 14, 11, 12, 4, 11, 2, 15, 8, 1,
- 13, 1, 6, 10, 4, 13, 9, 0, 8, 6, 15, 9, 3, 8, 0, 7,
- 11, 4, 1, 15, 2, 14, 12, 3, 5, 11, 10, 5, 14, 2, 7, 12
- },
- /* Func S4 = */ {
- 7, 13, 13, 8, 14, 11, 3, 5, 0, 6, 6, 15, 9, 0, 10, 3,
- 1, 4, 2, 7, 8, 2, 5, 12, 11, 1, 12, 10, 4, 14, 15, 9,
- 10, 3, 6, 15, 9, 0, 0, 6, 12, 10, 11, 1, 7, 13, 13, 8,
- 15, 9, 1, 4, 3, 5, 14, 11, 5, 12, 2, 7, 8, 2, 4, 14
- },
- /* Func S5 = */ {
- 2, 14, 12, 11, 4, 2, 1, 12, 7, 4, 10, 7, 11, 13, 6, 1,
- 8, 5, 5, 0, 3, 15, 15, 10, 13, 3, 0, 9, 14, 8, 9, 6,
- 4, 11, 2, 8, 1, 12, 11, 7, 10, 1, 13, 14, 7, 2, 8, 13,
- 15, 6, 9, 15, 12, 0, 5, 9, 6, 10, 3, 4, 0, 5, 14, 3
- },
- /* Func S6 = */ {
- 12, 10, 1, 15, 10, 4, 15, 2, 9, 7, 2, 12, 6, 9, 8, 5,
- 0, 6, 13, 1, 3, 13, 4, 14, 14, 0, 7, 11, 5, 3, 11, 8,
- 9, 4, 14, 3, 15, 2, 5, 12, 2, 9, 8, 5, 12, 15, 3, 10,
- 7, 11, 0, 14, 4, 1, 10, 7, 1, 6, 13, 0, 11, 8, 6, 13
- },
- /* Func S7 = */ {
- 4, 13, 11, 0, 2, 11, 14, 7, 15, 4, 0, 9, 8, 1, 13, 10,
- 3, 14, 12, 3, 9, 5, 7, 12, 5, 2, 10, 15, 6, 8, 1, 6,
- 1, 6, 4, 11, 11, 13, 13, 8, 12, 1, 3, 4, 7, 10, 14, 7,
- 10, 9, 15, 5, 6, 0, 8, 15, 0, 14, 5, 2, 9, 3, 2, 12
- },
- /* Func S8 = */ {
- 13, 1, 2, 15, 8, 13, 4, 8, 6, 10, 15, 3, 11, 7, 1, 4,
- 10, 12, 9, 5, 3, 6, 14, 11, 5, 0, 0, 14, 12, 9, 7, 2,
- 7, 2, 11, 1, 4, 14, 1, 7, 9, 4, 12, 10, 14, 8, 2, 13,
- 0, 15, 6, 12, 10, 9, 13, 0, 15, 3, 3, 5, 5, 6, 8, 11
- }
- };
- /*
- * Permutation function for results from s-boxes
- * from FIPS 46 pages 12 and 16.
- * P =
- */
- unsigned char P[32] = {
- 16, 7, 20, 21, 29, 12, 28, 17,
- 1, 15, 23, 26, 5, 18, 31, 10,
- 2, 8, 24, 14, 32, 27, 3, 9,
- 19, 13, 30, 6, 22, 11, 4, 25
- };
- unsigned int Pinv[32];
- unsigned int SP[8][64];
- void
- makePinv(void)
- {
- int i;
- unsigned int Pi = 0x80000000;
- for (i = 0; i < 32; ++i) {
- int j = 32 - P[i];
- Pinv[j] = Pi;
- Pi >>= 1;
- }
- }
- void
- makeSP(void)
- {
- int box;
- for (box = 0; box < 8; ++box) {
- int item;
- printf("/* box S%d */ {n", box + 1);
- for (item = 0; item < 64; ++item ) {
- unsigned int s = S[box][item];
- unsigned int val = 0;
- unsigned int bitnum = (7-box) * 4;
- for (; s; s >>= 1, ++bitnum) {
- if (s & 1) {
- val |= Pinv[bitnum];
- }
- }
- val = (val << 3) | (val >> 29);
- SP[box][item] = val;
- }
- for (item = 0; item < 64; item += 4) {
- printf("t0x%08x, 0x%08x, 0x%08x, 0x%08x,n",
- SP[box][item], SP[box][item+1], SP[box][item+2], SP[box][item+3]);
- }
- printf(" },n");
- }
- }
- int
- main()
- {
- makePinv();
- makeSP();
- return 0;
- }