Mercurial > dropbear

annotate libtomcrypt/src/ciphers/twofish/twofish.c @ 769:b2d4205b0897

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reset terminal modes before printing a message
author Matt Johnston <matt@ucc.asn.au>
date Wed, 10 Apr 2013 21:32:44 +0800
parents 0cbe8f6dbf9e
children eef377591301
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1 /* LibTomCrypt, modular cryptographic library -- Tom St Denis
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2 *
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3 * LibTomCrypt is a library that provides various cryptographic
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4 * algorithms in a highly modular and flexible manner.
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5 *
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6 * The library is free for all purposes without any express
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7 * guarantee it works.
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8 *
382
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9 * Tom St Denis, [email protected], http://libtomcrypt.com
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10 */
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11
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12 /**
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13 @file twofish.c
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14 Implementation of Twofish by Tom St Denis
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15 */
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16 #include "tomcrypt.h"
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17
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18 #ifdef TWOFISH
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19
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20 /* first TWOFISH_ALL_TABLES must ensure TWOFISH_TABLES is defined */
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21 #ifdef TWOFISH_ALL_TABLES
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22 #ifndef TWOFISH_TABLES
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23 #define TWOFISH_TABLES
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24 #endif
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25 #endif
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26
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27 const struct ltc_cipher_descriptor twofish_desc =
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28 {
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29 "twofish",
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30 7,
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31 16, 32, 16, 16,
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32 &twofish_setup,
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33 &twofish_ecb_encrypt,
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34 &twofish_ecb_decrypt,
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35 &twofish_test,
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36 &twofish_done,
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37 &twofish_keysize,
382
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38 NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL, NULL
285
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39 };
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40
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41 /* the two polynomials */
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42 #define MDS_POLY 0x169
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43 #define RS_POLY 0x14D
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44
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45 /* The 4x4 MDS Linear Transform */
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46 #if 0
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47 static const unsigned char MDS[4][4] = {
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48 { 0x01, 0xEF, 0x5B, 0x5B },
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49 { 0x5B, 0xEF, 0xEF, 0x01 },
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50 { 0xEF, 0x5B, 0x01, 0xEF },
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51 { 0xEF, 0x01, 0xEF, 0x5B }
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52 };
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53 #endif
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54
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55 /* The 4x8 RS Linear Transform */
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56 static const unsigned char RS[4][8] = {
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57 { 0x01, 0xA4, 0x55, 0x87, 0x5A, 0x58, 0xDB, 0x9E },
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58 { 0xA4, 0x56, 0x82, 0xF3, 0X1E, 0XC6, 0X68, 0XE5 },
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59 { 0X02, 0XA1, 0XFC, 0XC1, 0X47, 0XAE, 0X3D, 0X19 },
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60 { 0XA4, 0X55, 0X87, 0X5A, 0X58, 0XDB, 0X9E, 0X03 }
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61 };
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62
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63 /* sbox usage orderings */
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64 static const unsigned char qord[4][5] = {
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65 { 1, 1, 0, 0, 1 },
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66 { 0, 1, 1, 0, 0 },
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67 { 0, 0, 0, 1, 1 },
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68 { 1, 0, 1, 1, 0 }
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69 };
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70
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