new makefile and modified build process

[avr-crypto-lib.git] / threefish1024_dec.c

diff --git a/threefish1024_dec.c b/threefish1024_dec.c
deleted file mode 100644 (file)
index edb46d4..0000000
--- a/threefish1024_dec.c
+++ /dev/null
@@ -1,96 +0,0 @@
-/* threefish1024_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_inv16(void* data){
-       uint64_t t;
-       t = X(15);
-       X(15) = X(7);
-       X(7) = X(9);
-       X(9) = X(1);
-       X(1) = t;
-       t = X(11);
-       X(11) = X(5);
-       X(5) = X(13);
-       X(13) = X(3);
-       X(3) = t;               
-       t = X(4);
-       X(4) = X(6);
-       X(6) = t;
-       t = X(14);
-       X(14) = X(12);
-       X(12) = X(10);
-       X(10) = X(8);
-       X(8) = t;
-}
-
-static
-void add_key_16(void* data, const threefish1024_ctx_t* ctx, uint8_t s){
-       uint8_t i;
-       for(i=0; i<13; ++i){
-               X(i) -= ctx->k[(s+i)%17];
-       }
-       X(13) -= ctx->k[(s+13)%17] + ctx->t[s%3];
-       X(14) -= ctx->k[(s+14)%17] + ctx->t[(s+1)%3];
-       X(15) -= ctx->k[(s+15)%17] + s;
-}
-
-void threefish1024_dec(void* data, const threefish1024_ctx_t* ctx){
-       uint8_t i=0,s=20;
-       uint8_t r0[8] = {47, 58, 17, 28, 34, 33, 25, 55};
-       uint8_t r1[8] = {49,  7,  6,  7, 43,  8, 25, 43};
-       uint8_t r2[8] = {27, 32, 18, 47, 25, 18, 46, 37};
-       uint8_t r3[8] = {58, 45, 25, 48, 60, 57, 13, 40};
-       uint8_t r4[8] = {37, 19, 43, 51, 44, 21, 14, 16};
-       uint8_t r5[8] = {48, 18, 42,  9,  9, 12, 13, 22};
-       uint8_t r6[8] = {53,  2, 40, 35, 59, 32, 52, 38};
-       uint8_t r7[8] = {56, 56, 15, 41, 34, 54, 57, 12};
-       do{
-               if(i%4==0){
-                       add_key_16(data, ctx, s);
-                       --s;
-               }
-               permute_inv16(data);
-               threefish_invmix((uint8_t*)data +  0, r0[i%8]);
-               threefish_invmix((uint8_t*)data + 16, r1[i%8]);
-               threefish_invmix((uint8_t*)data + 32, r2[i%8]);
-               threefish_invmix((uint8_t*)data + 48, r3[i%8]);
-               threefish_invmix((uint8_t*)data + 64, r4[i%8]);
-               threefish_invmix((uint8_t*)data + 80, r5[i%8]);
-               threefish_invmix((uint8_t*)data + 96, r6[i%8]);
-               threefish_invmix((uint8_t*)data +112, r7[i%8]);
-               ++i;
-       }while(i!=80);
-       add_key_16(data, ctx, s);
-}