+/* seed.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/>.
+*/
/**
* \file seed.c
* \author Daniel Otte
changeendian32(&a);
return a;
}
-
+*/
/******************************************************************************/
-static
+/* static */
uint32_t bigendian_sub32(uint32_t a, uint32_t b);/*{
changeendian32(&a);
changeendian32(&b);
changeendian32(&a);
return a;
}
-
+*/
/******************************************************************************/
static inline
uint64_t bigendian_rotl8_64(uint64_t a){
keypair_t ret;
if (curround>15){
/* ERROR */
+ ret.k0 = ret.k1 = 0;
} else {
/* ret.k0 = g_function(keystate[0] + keystate[2] - pgm_read_dword(&(seed_kc[curround])));
ret.k1 = g_function(keystate[1] - keystate[3] + pgm_read_dword(&(seed_kc[curround]))); */
keypair_t ret;
if (curround>15){
/* ERROR */
+ ret.k0 = ret.k1 = 0;
} else {
if (curround & 1){
/* odd round (1,3,5, ..., 15) */
/******************************************************************************/
-void seed_init(seed_ctx_t * ctx, uint8_t * key){
+void seed_init(uint8_t * key, seed_ctx_t * ctx){
memcpy(ctx->k, key, 128/8);
}
#define L (((uint64_t*)buffer)[0])
#define R (((uint64_t*)buffer)[1])
-void seed_encrypt(seed_ctx_t * ctx, void * buffer){
+void seed_enc(void * buffer, seed_ctx_t * ctx){
uint8_t r;
keypair_t k;
for(r=0; r<8; ++r){
#define L (((uint64_t*)buffer)[0])
#define R (((uint64_t*)buffer)[1])
-void seed_decrypt(seed_ctx_t * ctx, void * buffer){
+void seed_dec(void * buffer, seed_ctx_t * ctx){
int8_t r;
keypair_t k;
for(r=7; r>=0; --r){