+/* camellia.c */
+/*
+ This file is part of the Crypto-avr-lib/microcrypt-lib.
+ Copyright (C) 2008 Daniel Otte (daniel.otte@rub.de)
+
+ This program is free software: you can redistribute it and/or modify
+ it under the terms of the GNU General Public License as published by
+ the Free Software Foundation, either version 3 of the License, or
+ (at your option) any later version.
+
+ This program is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ GNU General Public License for more details.
+
+ You should have received a copy of the GNU General Public License
+ along with this program. If not, see <http://www.gnu.org/licenses/>.
+*/
/**
*
*
uint64_t camellia_fl_inv(uint64_t y, uint64_t k);
/*****************************************************************************/
void change_endian(void* data, uint8_t length);
-
-uint64_t camellia_sigma[6]={
+/*
+uint64_t PROGMEM camellia_sigma[6]={ / * 64 byte table * /
0xA09E667F3BCC908BLL,
0xB67AE8584CAA73B2LL,
0xC6EF372FE94F82BELL,
0x10E527FADE682D1DLL,
0xB05688C2B3E6C1FDLL
};
+*/
+uint32_t PROGMEM camellia_sigma[12]={ /* 48 byte table */
+ 0x3BCC908BL, 0xA09E667FL,
+ 0x4CAA73B2L, 0xB67AE858L,
+ 0xE94F82BEL, 0xC6EF372FL,
+ 0xF1D36F1CL, 0x54FF53A5L,
+ 0xDE682D1DL, 0x10E527FAL,
+ 0xB3E6C1FDL, 0xB05688C2L
+};
+
+/* an ugly macro to load an entry form the table above */
+/*
+#define SIGMA(p) (( ((uint64_t)(pgm_read_dword((prog_uint32_t*)camellia_sigma+2*(p)+1)))<<32) | \
+ ((uint64_t)(pgm_read_dword((prog_uint32_t*)camellia_sigma+2*(p)+0))) )
+*/
+#define SIGMA(p) (( ((uint64_t)(pgm_read_dword(((prog_uint32_t*)camellia_sigma)[2*(p)+1])))<<32) | \
+ ((uint64_t)(pgm_read_dword(((prog_uint32_t*)camellia_sigma)[2*(p)+0]))) )
+
+
/*****************************************************************************/
void camellia128_ctx_dump(camellia128_ctx_t *s){
- uart_putstr("\r\n==State Dump==");
- uart_putstr("\n\rKAl: "); uart_hexdump(&(s->kal), 8);
- uart_putstr("\n\rKAr: "); uart_hexdump(&(s->kar), 8);
- uart_putstr("\n\rKLl: "); uart_hexdump(&(s->kll), 8);
- uart_putstr("\n\rKLr: "); uart_hexdump(&(s->klr), 8);
+ uart_putstr_P(PSTR("\r\n==State Dump=="));
+ uart_putstr_P(PSTR("\n\rKAl: ")); uart_hexdump(&(s->kal), 8);
+ uart_putstr_P(PSTR("\n\rKAr: ")); uart_hexdump(&(s->kar), 8);
+ uart_putstr_P(PSTR("\n\rKLl: ")); uart_hexdump(&(s->kll), 8);
+ uart_putstr_P(PSTR("\n\rKLr: ")); uart_hexdump(&(s->klr), 8);
return;
}
/*****************************************************************************/
-//*
-//extern prog_uint64_t camellia_sigma[6];
+/* extern prog_uint64_t camellia_sigma[6]; */
-void camellia128_init(camellia128_ctx_t* s, uint8_t* key){
+void camellia128_init(uint8_t* key, camellia128_ctx_t* s){
uint8_t i;
- s->kll = 0; //((uint64_t*)key)[0];
+ s->kll = 0; /* ((uint64_t*)key)[0]; */
-// / * load the key, endian-adjusted, to kll,klr * /
+ /* load the key, endian-adjusted, to kll,klr */
for(i=0; i<8; ++i){
s->kll <<= 8;
s->kll |= *key++;
s->klr <<= 8;
s->klr |= *key++;
}
-
+
s->kal = s->kll;
s->kar = s->klr;
- s->kar ^= camellia_f(s->kal, camellia_sigma[0]);
- s->kal ^= camellia_f(s->kar, camellia_sigma[1]);
+ s->kar ^= camellia_f(s->kal, SIGMA(0));
+ s->kal ^= camellia_f(s->kar, SIGMA(1));
s->kal ^= s->kll;
s->kar ^= s->klr;
- s->kar ^= camellia_f(s->kal, camellia_sigma[2]);
- s->kal ^= camellia_f(s->kar, camellia_sigma[3]);
-// / ** /
-// uart_putstr("\n\r----------------init finished--------------------");
+ s->kar ^= camellia_f(s->kal, SIGMA(2));
+ s->kal ^= camellia_f(s->kar, SIGMA(3));
}
-//*/
+
/*****************************************************************************/
void camellia128_keyop(camellia128_ctx_t* s, int8_t q);
/*****************************************************************************/
#define KEY_ROL17 0x08
#define KEY_ROL15 0x00
-void camellia_6rounds(camellia128_ctx_t* s, uint64_t* bl, uint64_t* br, uint8_t roundop, uint8_t keychoice);
+void camellia_6rounds(camellia128_ctx_t* s, uint64_t* bl, uint64_t* br,
+ uint8_t roundop, uint8_t keychoice);
/*****************************************************************************/
-void camellia128_enc(camellia128_ctx_t* s, void* block){
+void camellia128_enc(void* block, camellia128_ctx_t* s){
#define BL (((uint64_t*)block)[0])
#define BR (((uint64_t*)block)[1])
/* endian adjustment */
/*BL*/
- /* 1 2 3 4 5 6 7 8
- * 8 7 6 5 4 3 2 1
+ /* 1 2 3 4 5 6 7 8
+ * 8 7 6 5 4 3 2 1
*/
uint64_t temp64;
BR = BL;
BL = temp64;
+ camellia128_keyop(s,1);
change_endian(&BL, 64/8);
change_endian(&BR, 64/8);
/*****************************************************************************/
-void camellia128_dec(camellia128_ctx_t* s, void* block){
+void camellia128_dec(void* block, camellia128_ctx_t* s){
#define BL (((uint64_t*)block)[1])
#define BR (((uint64_t*)block)[0])