X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Cipher_code.git/blobdiff_plain/a3e6fe442440811ebd5f7288bf01d9782f3a7ea7..2f7c730dc00e0060885091f4002d903a233c6db4:/OneRoundIoT/OneRound/rc4_hash2.cpp

diff --git a/OneRoundIoT/OneRound/rc4_hash2.cpp b/OneRoundIoT/OneRound/rc4_hash2.cpp
index 013d657..386ddf7 100644
--- a/OneRoundIoT/OneRound/rc4_hash2.cpp
+++ b/OneRoundIoT/OneRound/rc4_hash2.cpp
@@ -168,46 +168,35 @@ void hash_DSD_BIN(uchar* seq_in, uchar* RM1,int len, uchar *S, int h) {
 
   // Goal: Calculate the hash value
   // Output: RM (hash value)
-
-//  uchar *X=new uchar[h2];
-//  uchar *fX=new uchar[h2];
   uchar X[h];
   int ind1,ind2;
 
 
   uint64_t *rm=(uint64_t*)RM1;
-  uint64_t *xx=(uint64_t*)X;
+  //  uint64_t *xx=(uint64_t*)X;
   uint64_t *ss=(uint64_t*)seq_in;
 
 
   
   for(int it=0;it<len;it++) {
-    //ind1=Pbox[it]*h;
-    //ind2=Pbox[(it+len/2)]*h;
 
-    ind1=it*h/8;
+    ind1=(it*h)>>3;
     // Mix with dynamic RM
     uint64_t sum=0;
-    /*     for(int a=0;a<h;a+=4) {
-       X[a]=RM1[a]^seq_in[ind1+a];
-       X[a+1]=RM1[a+1]^seq_in[ind1+a+1];
-       X[a+2]=RM1[a+2]^seq_in[ind1+a+2];
-       X[a+3]=RM1[a+3]^seq_in[ind1+a+3];
-     }
-    */
 
     
-     for(int a=0;a<h/8;a++) {
-       xx[a]=rm[a]^ss[ind1+a];
-       sum+=xx[a];
+    for(int a=0;a<(h>>3);a++) {
+       rm[a]=rm[a]^ss[ind1+a];
+       sum^=rm[a];
      }
 
 
 
 
      rm[0]=xorshift64(sum);
-     for(int a=1;a<h/8;a++) {
-       rm[a]^=xorshift64(rm[a-1]);
+     for(int a=1;a<(h>>3);a++) {
+       rm[a]=xorshift64(rm[a-1]);
+       //rm[a]=splitmix64(rm[a-1]);
      }
 
 
@@ -309,10 +298,12 @@ int main(int argc, char** argv) {
   if(change==1) {
     
     seq[4]++;
+    seq[5]--;
   }
   if(change==2) {
     
     seq[9]++;
+    seq[10]--;
   }
 
   printf("seq 4 %d\n",seq[4]);