arduino

[Cipher_code.git] / OneRoundIoT / OneRound / one_round_new.cpp

diff --git a/OneRoundIoT/OneRound/one_round_new.cpp b/OneRoundIoT/OneRound/one_round_new.cpp
index e7b98ae1d430e37b93c51052b1b5b64712fcbe6a..76fb91c57cda4621aabc11585511bb38910e0245 100644 (file)
--- a/OneRoundIoT/OneRound/one_round_new.cpp
+++ b/OneRoundIoT/OneRound/one_round_new.cpp
@@ -147,8 +147,11 @@ void encrypt_ctr(uchar* seq_in, uchar *seq_out, int len,uchar* RM1,int *Pbox, in
   int ind1,ind2;
 
   
-   for(int a=0;a<h2;a++) {
+   for(int a=0;a<h2;a+=4) {
      X[a]=Sbox1[a&0xFF];           //Warning according to the size of h2, we can be outsize of Sbox1[a]
+     X[a+1]=Sbox1[(a+1)&0xFF];
+     X[a+2]=Sbox1[(a+2)&0xFF];
+     X[a+3]=Sbox1[(a+3)&0xFF];           
    }
 
    
@@ -164,19 +167,12 @@ void encrypt_ctr(uchar* seq_in, uchar *seq_out, int len,uchar* RM1,int *Pbox, in
        
 
     for(int a=0;a<h2;a+=4) {
-      X[a]=X[Sbox1[a]];
-      X[a+1]=X[Sbox1[a+1]];
-      X[a+2]=X[Sbox1[a+2]];
-      X[a+3]=X[Sbox1[a+3]];
+      X[a]=Sbox1[X[a]];
+      X[a+1]=Sbox1[X[a+1]];
+      X[a+2]=Sbox1[X[a+2]];
+      X[a+3]=Sbox1[X[a+3]];
     }
-    
-    for(int a=0;a<h2;a+=4){
-      fX[a]=X[a];
-      fX[a+1]=X[a+1];
-      fX[a+2]=X[a+2];
-      fX[a+3]=X[a+3];
-    }
-
+   
 
     
 //    *(int*)&fX[0]^=it;
@@ -192,19 +188,19 @@ void encrypt_ctr(uchar* seq_in, uchar *seq_out, int len,uchar* RM1,int *Pbox, in
 
     
     for(int a=0;a<h2;a+=4) {
-      fX[a]=fX[a]^RM1[a];
-      fX[a+1]=fX[a+1]^RM1[a+1];
-      fX[a+2]=fX[a+2]^RM1[a+2];
-      fX[a+3]=fX[a+3]^RM1[a+3];
+      fX[a]=X[a]^RM1[a];
+      fX[a+1]=X[a+1]^RM1[a+1];
+      fX[a+2]=X[a+2]^RM1[a+2];
+      fX[a+3]=X[a+3]^RM1[a+3];
     }
 
  
-    for(int a=0;a<h2;a+=4) {
+    /*   for(int a=0;a<h2;a+=4) {
       fX[a]=Sbox2[fX[a]];
       fX[a+1]=Sbox2[fX[a+1]];
       fX[a+2]=Sbox2[fX[a+2]];
       fX[a+3]=Sbox2[fX[a+3]];
-    }
+      }*/
     
      for(int a=0;a<h2;a+=4) {
       fX[a]=fX[a]^seq_in[ind2+a];