1 /* jh_simple_speed.c */
3 This file is part of the ARM-Crypto-Lib.
4 Copyright (C) 2006-2010 Daniel Otte (daniel.otte@rub.de)
6 This program is free software: you can redistribute it and/or modify
7 it under the terms of the GNU General Public License as published by
8 the Free Software Foundation, either version 3 of the License, or
9 (at your option) any later version.
11 This program is distributed in the hope that it will be useful,
12 but WITHOUT ANY WARRANTY; without even the implied warranty of
13 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 GNU General Public License for more details.
16 You should have received a copy of the GNU General Public License
17 along with this program. If not, see <http://www.gnu.org/licenses/>.
24 #include "jh_simple.h"
25 #include "jh_tables.h"
34 void jh_round(uint8_t* a, uint8_t roundno){
36 uint8_t i,r=0,u,v,x,y;
38 pr = jh_round_const + 32*roundno;
43 b[i] = jh_lutbox[((r&0xC0)<<2)|a[i]];
47 u = jh_permutation_table[2*i];
48 v = jh_permutation_table[2*i+1];
67 void group(uint8_t *a){
71 x = (((a[i/8+ 0])>>4)&0x8)
72 | (((a[i/8+ 32])>>5)&0x4)
73 | (((a[i/8+ 64])>>6)&0x2)
74 | (((a[i/8+ 96])>>7)&0x1);
75 a[i/8] <<= 1; a[i/8+32]<<=1; a[i/8+64]<<=1; a[i/8+96]<<=1;
76 y = (((a[i/8+ 16])>>4)&0x8)
77 | (((a[i/8+ 48])>>5)&0x4)
78 | (((a[i/8+ 80])>>6)&0x2)
79 | (((a[i/8+112])>>7)&0x1);
80 a[i/8+16] <<= 1; a[i/8+48]<<=1; a[i/8+80]<<=1; a[i/8+112]<<=1;
87 void degroup(uint8_t *a){
92 b[j+ 0]<<=1; b[j+ 0] |= ((a[i])>>7)&1;
93 b[j+ 32]<<=1; b[j+ 32] |= ((a[i])>>6)&1;
94 b[j+ 64]<<=1; b[j+ 64] |= ((a[i])>>5)&1;
95 b[j+ 96]<<=1; b[j+ 96] |= ((a[i])>>4)&1;
96 b[j+ 16]<<=1; b[j+ 16] |= ((a[i])>>3)&1;
97 b[j+ 48]<<=1; b[j+ 48] |= ((a[i])>>2)&1;
98 b[j+ 80]<<=1; b[j+ 80] |= ((a[i])>>1)&1;
99 b[j+112]<<=1; b[j+112] |= ((a[i])>>0)&1;
104 void jh_encrypt(uint8_t* a){
108 cli_putstr("\r\n== pre group ==\r\n");
109 cli_hexdump_block(a, 128, 4, 16);
118 cli_putstr("\r\n== pre degroup ==\r\n");
119 cli_hexdump_block(a, 128, 4, 16);
123 cli_putstr("\r\n== post degroup ==\r\n");
124 cli_hexdump_block(a, 128, 4, 16);