new makefile and modified build process

[avr-crypto-lib.git] / threefish256_enc.c

diff --git a/threefish256_enc.c b/threefish256_enc.c
deleted file mode 100644 (file)
index 8bfbf9d..0000000
--- a/threefish256_enc.c
+++ /dev/null
@@ -1,86 +0,0 @@
-/* threefish256_enc.c */
-/*
-    This file is part of the AVR-Crypto-Lib.
-    Copyright (C) 2009  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/>.
-*/
-/*
- * \author  Daniel Otte
- * \email   daniel.otte@rub.de
- * \date    2009-03-12
- * \license GPLv3 or later
- * 
- * 
- * 
- */
-
-#include <stdint.h>
-#include <string.h>
-#include "threefish.h"
-
-#define X(a) (((uint64_t*)data)[(a)])
-static
-void permute_4(void* data){
-       uint64_t t;
-       t = X(1);
-       X(1) = X(3);
-       X(3) = t;
-}
-
-#define THREEFISH_KEY_CONST 0x5555555555555555LL /* 2**64/3 */
-
-#define K(s) (((uint64_t*)key)[(s)])
-#define T(s) (((uint64_t*)tweak)[(s)])
-
-void threefish256_init(const void* key, const void* tweak, threefish256_ctx_t* ctx){
-       memcpy(ctx->k, key, 4*8);
-       if(tweak){
-               memcpy(ctx->t, tweak, 2*8);
-               ctx->t[2] = T(0) ^ T(1);
-       }else{
-               memset(ctx->t, 0, 3*8);
-       }
-       uint8_t i;
-       ctx->k[4] = THREEFISH_KEY_CONST;
-       for(i=0; i<4; ++i){
-               ctx->k[4] ^= K(i);
-       }
-}
-
-static
-void add_key_4(void* data, const threefish256_ctx_t* ctx, uint8_t s){
-       X(0) += ctx->k[(s+0)%5];
-       X(1) += ctx->k[(s+1)%5] + ctx->t[s%3];
-       X(2) += ctx->k[(s+2)%5] + ctx->t[(s+1)%3];
-       X(3) += ctx->k[(s+3)%5] + s;
-}
-
-void threefish256_enc(void* data, const threefish256_ctx_t* ctx){
-       uint8_t i=0,s=0;
-       uint8_t r0[8] = { 5, 36, 13, 58, 26, 53, 11, 59}; 
-       uint8_t r1[8] = {56, 28, 46, 44, 20, 35, 42, 50};
-       do{
-               if(i%4==0){
-                       add_key_4(data, ctx, s);
-                       ++s;
-               }
-               threefish_mix(data, r0[i%8]);
-               threefish_mix((uint8_t*)data + 16, r1[i%8]);
-               permute_4(data);
-               ++i;
-       }while(i!=72);
-       add_key_4(data, ctx, s);
-}
-