X-Git-Url: https://git.cryptolib.org/?a=blobdiff_plain;f=threefish512_enc.c;fp=threefish512_enc.c;h=0000000000000000000000000000000000000000;hb=4f50c75ee5a6cc88bf7ea71957ed509e298e6c25;hp=620276fed44a24cf2174c7eae8b482e12d0707fe;hpb=7701e318e4e2bac7f84dbf6e368f1501814948fc;p=avr-crypto-lib.git

diff --git a/threefish512_enc.c b/threefish512_enc.c
deleted file mode 100644
index 620276f..0000000
--- a/threefish512_enc.c
+++ /dev/null
@@ -1,115 +0,0 @@
-/* threefish512_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_8(void* data){
-	uint64_t t;
-	t = X(0);
-	X(0) = X(2);
-	X(2) = X(4);
-	X(4) = X(6);
-	X(6) = t;
-	t = X(3);
-	X(3) = X(7);
-	X(7) = t;
-}
-/*
-static
-void permute_inv8(void* data){
-	uint64_t t;
-	t = X(6);
-	X(6) = X(4);
-	X(4) = X(2);
-	X(2) = X(0);
-	X(0) = t;
-	t = X(7);
-	X(7) = 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 threefish512_init(const void* key, const void* tweak, threefish512_ctx_t* ctx){
-	memcpy(ctx->k, key, 8*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[8] = THREEFISH_KEY_CONST;
-	for(i=0; i<8; ++i){
-		ctx->k[8] ^= K(i);
-	}
-}
-
-static
-void add_key_8(void* data, const threefish512_ctx_t* ctx, uint8_t s){
-	uint8_t i;
-	for(i=0; i<5; ++i){
-		X(i) += ctx->k[(s+i)%9];
-	}
-	X(5) += ctx->k[(s+5)%9] + ctx->t[s%3];
-	X(6) += ctx->k[(s+6)%9] + ctx->t[(s+1)%3];
-	X(7) += ctx->k[(s+7)%9] + s;
-}
-
-void threefish512_enc(void* data, const threefish512_ctx_t* ctx){
-	uint8_t i=0,s=0;
-	uint8_t r0[8] = {38, 48, 34, 26, 33, 39, 29, 33}; 
-	uint8_t r1[8] = {30, 20, 14, 12, 49, 27, 26, 51};
-	uint8_t r2[8] = {50, 43, 15, 58,  8, 41, 11, 39};
-	uint8_t r3[8] = {53, 31, 27,  7, 42, 14,  9, 35};
-	do{
-		if(i%4==0){
-			add_key_8(data, ctx, s);
-			++s;
-		}
-		threefish_mix((uint8_t*)data +  0, r0[i%8]);
-		threefish_mix((uint8_t*)data + 16, r1[i%8]);
-		threefish_mix((uint8_t*)data + 32, r2[i%8]);
-		threefish_mix((uint8_t*)data + 48, r3[i%8]);
-		permute_8(data);
-		++i;
-	}while(i!=72);
-	add_key_8(data, ctx, s);
-}
-