]> git.cryptolib.org Git - avr-crypto-lib.git/blobdiff - grain_h_lutgen.c
modyfied copyright
[avr-crypto-lib.git] / grain_h_lutgen.c
diff --git a/grain_h_lutgen.c b/grain_h_lutgen.c
deleted file mode 100644 (file)
index 4b5ede0..0000000
+++ /dev/null
@@ -1,60 +0,0 @@
-/**
- * 
- * author: Daniel Otte
- * email:  daniel.otte@rub.de
- * license: GPLv3
- *
- * this program generate a lookuptable for the h-function in grain 
- */
-
-#include <stdint.h>
-#include <stdio.h>
-
-#define X(i) ((x)>>((i)))
-uint8_t h(uint8_t x){
-       uint8_t h;
-       
-       h = (X(1)) ^ (X(4)) ^ 
-           (X(0)&X(3)) ^ (X(2)&X(3)) ^ (X(3)&X(4)) ^ 
-           (X(0)&X(1)&X(2)) ^ (X(0)&X(2)&X(3)) ^ (X(0)&X(2)&X(4)) ^ 
-           (X(1)&X(2)&X(4)) ^ (X(2)&X(3)&X(4)) ;
-       
-       return h&1;
-}
-
-int main(void){
-       uint8_t i; 
-       uint32_t lut;
-       puts(
-       "/* \n"
-       " * author: Daniel Otte \n"
-       " * email:  daniel.otte@rub.de  \n"
-       " * license: GPLv3 \n"
-       " *  \n"
-       " * this program generate a lookuptable for the h-function in grain  \n"
-       " *  \n"
-       " */ \n");
-       puts("/* \n"
-            " * x0 x1 x2 x3 x4 - h");
-       
-       for(i=0; i<0x20; ++i){
-               printf(" *  %c  %c  %c  %c  %c - %c\n",
-                       (i&0x01)?'1':'0',
-                       (i&0x02)?'1':'0',
-                       (i&0x04)?'1':'0',
-                       (i&0x08)?'1':'0',
-                       (i&0x10)?'1':'0',
-                       (h(i))?'1':'0' );
-                       lut >>=1;
-                       lut |= h(i)?0x80000000:0x00000000;
-                       if(i%4==3){     
-                               puts(" * --");
-                       }
-       }
-       puts(" */\n");
-       printf(" uint8_t lut[4]= {0x%2.2X, 0x%2.2X, 0x%2.2X, 0x%2.2X} \n",
-               lut&0xFF, (lut>>8)&0xFF, (lut>>16)&0xFF, (lut>>24)&0xFF);
-               
-       return 0; 
-}
-