| | 1 | /* -*-c-*- |
| | 2 | * |
| | 3 | * Generate tables for SAFER |
| | 4 | * |
| | 5 | * (c) 2001 Straylight/Edgeware |
| | 6 | */ |
| | 7 | |
| | 8 | /*----- Licensing notice --------------------------------------------------* |
| | 9 | * |
| | 10 | * This file is part of Catacomb. |
| | 11 | * |
| | 12 | * Catacomb is free software; you can redistribute it and/or modify |
| | 13 | * it under the terms of the GNU Library General Public License as |
| | 14 | * published by the Free Software Foundation; either version 2 of the |
| | 15 | * License, or (at your option) any later version. |
| | 16 | * |
| | 17 | * Catacomb is distributed in the hope that it will be useful, |
| | 18 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| | 19 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| | 20 | * GNU Library General Public License for more details. |
| | 21 | * |
| | 22 | * You should have received a copy of the GNU Library General Public |
| | 23 | * License along with Catacomb; if not, write to the Free |
| | 24 | * Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, |
| | 25 | * MA 02111-1307, USA. |
| | 26 | */ |
| | 27 | |
| | 28 | /*----- Header files ------------------------------------------------------*/ |
| | 29 | |
| | 30 | #include <stdio.h> |
| | 31 | #include <stdlib.h> |
| | 32 | |
| | 33 | #include <mLib/bits.h> |
| | 34 | |
| | 35 | /*----- Main code ---------------------------------------------------------*/ |
| | 36 | |
| | 37 | int main(void) |
| | 38 | { |
| | 39 | octet s[256], si[256]; |
| | 40 | unsigned x, i; |
| | 41 | |
| | 42 | x = 1; |
| | 43 | for (i = 0; i < 256; i++) { |
| | 44 | if (x < 256) { |
| | 45 | s[i] = x; |
| | 46 | si[x] = i; |
| | 47 | } |
| | 48 | x = (x * 45)%257; |
| | 49 | } |
| | 50 | s[128] = 0; |
| | 51 | si[0] = 128; |
| | 52 | |
| | 53 | fputs("\ |
| | 54 | /* -*-c-*-\n\ |
| | 55 | *\n\ |
| | 56 | * SAFER tables [generated]\n\ |
| | 57 | */\n\ |
| | 58 | \n\ |
| | 59 | #include <mLib/bits.h>\n\ |
| | 60 | \n\ |
| | 61 | ", stdout); |
| | 62 | |
| | 63 | fputs("\ |
| | 64 | /* --- S-boxes --- */\n\ |
| | 65 | \n\ |
| | 66 | const octet safer_s[256] = {\n\ |
| | 67 | ", stdout); |
| | 68 | for (i = 0; i < 256; i++) { |
| | 69 | printf("0x%02x", s[i]); |
| | 70 | if (i == 255) |
| | 71 | fputs("\n};\n\n", stdout); |
| | 72 | else if ((i + 1)%8 == 0) |
| | 73 | fputs(",\n ", stdout); |
| | 74 | else |
| | 75 | fputs(", ", stdout); |
| | 76 | } |
| | 77 | |
| | 78 | fputs("\ |
| | 79 | const octet safer_si[256] = {\n\ |
| | 80 | ", stdout); |
| | 81 | for (i = 0; i < 256; i++) { |
| | 82 | printf("0x%02x", si[i]); |
| | 83 | if (i == 255) |
| | 84 | fputs("\n};\n", stdout); |
| | 85 | else if ((i + 1)%8 == 0) |
| | 86 | fputs(",\n ", stdout); |
| | 87 | else |
| | 88 | fputs(", ", stdout); |
| | 89 | } |
| | 90 | |
| | 91 | if (fclose(stdout)) { |
| | 92 | fprintf(stderr, "error writing data\n"); |
| | 93 | exit(EXIT_FAILURE); |
| | 94 | } |
| | 95 | |
| | 96 | return (0); |
| | 97 | } |
| | 98 | |
| | 99 | /*----- That's all, folks -------------------------------------------------*/ |
projects / u / mdw / catacomb / blame_incremental