X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Cipher_code.git/blobdiff_plain/1c5994c77784086a9fc557f039afc3c03847e249..54769a8ee0ec8e6038b44fdbf9656585e7d3e31c:/OneRoundIoT/OneRound/one_round_new.cpp?ds=sidebyside

diff --git a/OneRoundIoT/OneRound/one_round_new.cpp b/OneRoundIoT/OneRound/one_round_new.cpp
index b936005..b7940af 100644
--- a/OneRoundIoT/OneRound/one_round_new.cpp
+++ b/OneRoundIoT/OneRound/one_round_new.cpp
@@ -135,7 +135,7 @@ void prga(uchar *sc, int ldata, uchar *r) {
   uchar j0=0;
 
   for (int it=0; it<ldata; it++) {
-    i0 = ((i0+1)&0xFE); //%255);
+    i0 = ((i0+1)%255);
     j0 = (j0 + sc[i0])&0xFF;
     uchar tmp = sc[i0];
     sc[i0] = sc[j0];
@@ -160,10 +160,16 @@ 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]=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];
+    myrand=xorshift32(myrand);
+    uint mm=myrand;
+    
+    X[a]=Sbox2[mm&255];
+    mm>>=8;
+    X[a+1]=Sbox1[mm&255];
+    mm>>=8;
+    X[a+2]=Sbox2[mm&255];
+    mm>>=8;
+    X[a+3]=Sbox1[mm&255];
   }
 
 
@@ -178,32 +184,44 @@ void encrypt_ctr(uchar* seq_in, uchar *seq_out, int len,uchar* RM1,int *Pbox, in
     }
 
 
+    for(int a=0;a<h2;a+=4) {
+
+      myrand=xorshift32(myrand);
+      uint mm=myrand;
+
+      X[a]=X[a]^(mm&255);
+      mm>>=8;
+      X[a+1]=X[a+1]^(mm&255);
+      mm>>=8;
+      X[a+2]=X[a+2]^(mm&255);
+      mm>>=8;
+      X[a+3]=X[a+3]^(mm&255);
+    }
+
+
+
+
+    
     for(int a=0;a<h2;a+=4) {
       X[a]=Sbox1[X[a]];
-      X[a+1]=Sbox1[X[a+1]];
+      X[a+1]=Sbox2[X[a+1]];
       X[a+2]=Sbox1[X[a+2]];
-      X[a+3]=Sbox1[X[a+3]];
+      X[a+3]=Sbox2[X[a+3]];
     }
 
     for(int a=0;a<h2;a+=4) {
-      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];
+      X[a]=X[a]^RM1[a];
+      X[a+1]=X[a+1]^RM1[a+1];
+      X[a+2]=X[a+2]^RM1[a+2];
+      X[a+3]=X[a+3]^RM1[a+3];
     }
 
     for(int a=0;a<h2;a+=4) {
+      fX[a]=X[a]^seq_in[ind2+a];
+      fX[a+1]=X[a+1]^seq_in[ind2+a+1];
+      fX[a+2]=X[a+2]^seq_in[ind2+a+2];
+      fX[a+3]=X[a+3]^seq_in[ind2+a+3];
 
-      myrand=xorshift32(myrand);
-      uint mm=myrand;
-
-      fX[a]=fX[a]^seq_in[ind2+a]^(mm&255);
-      mm>>=8;
-      fX[a+1]=fX[a+1]^seq_in[ind2+a+1]^(mm&255);
-      mm>>=8;
-      fX[a+2]=fX[a+2]^seq_in[ind2+a+2]^(mm&255);
-      mm>>=8;
-      fX[a+3]=fX[a+3]^seq_in[ind2+a+3]^(mm&255);
     }
 
 
@@ -255,9 +273,9 @@ void encrypt(uchar* seq_in, uchar *seq_out, int len,uchar* RM1, int *Pbox, int *
 
     for(int a=0;a<h2;a+=4){
       fX[a]=Sbox1[X[a]];
-      fX[a+1]=Sbox1[X[a+1]];
+      fX[a+1]=Sbox2[X[a+1]];
       fX[a+2]=Sbox1[X[a+2]];
-      fX[a+3]=Sbox1[X[a+3]];
+      fX[a+3]=Sbox2[X[a+3]];
     }
 
 
@@ -271,16 +289,16 @@ void encrypt(uchar* seq_in, uchar *seq_out, int len,uchar* RM1, int *Pbox, int *
 
     for(int a=0;a<h2;a+=4) {
       seq_out[ind1+a]=Sbox2[fX[a]];
-      seq_out[ind1+a+1]=Sbox2[fX[a+1]];
+      seq_out[ind1+a+1]=Sbox1[fX[a+1]];
       seq_out[ind1+a+2]=Sbox2[fX[a+2]];
-      seq_out[ind1+a+3]=Sbox2[fX[a+3]];
+      seq_out[ind1+a+3]=Sbox1[fX[a+3]];
     }
 
     for(int a=0;a<h2;a+=4) {
-      RM1[a]=RM1[PboxRM[a]];
-      RM1[a+1]=RM1[PboxRM[a+1]];
-      RM1[a+2]=RM1[PboxRM[a+2]];
-      RM1[a+3]=RM1[PboxRM[a+3]];
+      RM1[a]=Sbox1[RM1[PboxRM[a]]];
+      RM1[a+1]=Sbox2[RM1[PboxRM[a+1]]];
+      RM1[a+2]=Sbox1[RM1[PboxRM[a+2]]];
+      RM1[a+3]=Sbox2[RM1[PboxRM[a+3]]];
 
     }
 
@@ -302,7 +320,7 @@ void encrypt(uchar* seq_in, uchar *seq_out, int len,uchar* RM1, int *Pbox, int *
 
 
 template<int h2>
-void decrypt(uchar* seq_in, uchar *seq_out, int len, uchar* RM1, int *Pbox, int *PboxRM, uchar *Inv_Sbox1, uchar *Inv_Sbox2,  uint myrand, int debug) {
+void decrypt(uchar* seq_in, uchar *seq_out, int len, uchar* RM1, int *Pbox, int *PboxRM, uchar *Sbox1, uchar *Sbox2, uchar *Inv_Sbox1, uchar *Inv_Sbox2,  uint myrand, int debug) {
 
 
 
@@ -327,9 +345,9 @@ void decrypt(uchar* seq_in, uchar *seq_out, int len, uchar* RM1, int *Pbox, int
     }
     for(int a=0;a<h2;a+=4) {
       fX[a]=Inv_Sbox2[fX[a]];
-      fX[a+1]=Inv_Sbox2[fX[a+1]];
+      fX[a+1]=Inv_Sbox1[fX[a+1]];
       fX[a+2]=Inv_Sbox2[fX[a+2]];
-      fX[a+3]=Inv_Sbox2[fX[a+3]];
+      fX[a+3]=Inv_Sbox1[fX[a+3]];
     }
     for(int a=0;a<h2;a+=4) {
       fX[a]=fX[a]^RM1[a];
@@ -338,24 +356,26 @@ void decrypt(uchar* seq_in, uchar *seq_out, int len, uchar* RM1, int *Pbox, int
       fX[a+3]=fX[a+3]^RM1[a+3];
     }
 
+
     for(int a=0;a<h2;a+=4) {
-      RM1[a]=RM1[PboxRM[a]];
-      RM1[a+1]=RM1[PboxRM[a+1]];
-      RM1[a+2]=RM1[PboxRM[a+2]];
-      RM1[a+3]=RM1[PboxRM[a+3]];
+      RM1[a]=Sbox1[RM1[PboxRM[a]]];
+      RM1[a+1]=Sbox2[RM1[PboxRM[a+1]]];
+      RM1[a+2]=Sbox1[RM1[PboxRM[a+2]]];
+      RM1[a+3]=Sbox2[RM1[PboxRM[a+3]]];
     }
 
+
     for(int a=0;a<h2;a+=4) {
       myrand=xorshift32(myrand);
 
       uint mm=myrand;
       seq_out[ind2+a]=Inv_Sbox1[fX[a]]^(mm&255);
       mm>>=8;
-      seq_out[ind2+a+1]=Inv_Sbox1[fX[a+1]]^(mm&255);
+      seq_out[ind2+a+1]=Inv_Sbox2[fX[a+1]]^(mm&255);
       mm>>=8;
       seq_out[ind2+a+2]=Inv_Sbox1[fX[a+2]]^(mm&255);
       mm>>=8;
-      seq_out[ind2+a+3]=Inv_Sbox1[fX[a+3]]^(mm&255);
+      seq_out[ind2+a+3]=Inv_Sbox2[fX[a+3]]^(mm&255);
     }
 
 
@@ -654,7 +674,7 @@ int main(int argc, char** argv) {
       if(ctr)
 	encrypt_ctr<4*4>(seq2, seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,myrand,0);
       else
-	decrypt<4*4>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Inv_Sbox1,Inv_Sbox2,myrand,0);
+	decrypt<4*4>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 8:
@@ -662,7 +682,7 @@ int main(int argc, char** argv) {
       if(ctr)
 	encrypt_ctr<8*8>(seq2, seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,myrand,0);
       else
-	decrypt<8*8>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Inv_Sbox1,Inv_Sbox2,myrand,0);
+	decrypt<8*8>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 16:
@@ -670,7 +690,7 @@ int main(int argc, char** argv) {
       if(ctr)
 	encrypt_ctr<16*16>(seq2, seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,myrand,0);
       else
-	decrypt<16*16>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Inv_Sbox1,Inv_Sbox2,myrand,0);
+	decrypt<16*16>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 32:
@@ -678,7 +698,7 @@ int main(int argc, char** argv) {
       if(ctr)
 	encrypt_ctr<32*32>(seq2, seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,myrand,0);
       else
-	decrypt<32*32>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Inv_Sbox1,Inv_Sbox2,myrand,0);
+	decrypt<32*32>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 64:
@@ -686,7 +706,7 @@ int main(int argc, char** argv) {
       if(ctr)
 	encrypt_ctr<64*64>(seq2, seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,myrand,0);
       else
-	decrypt<64*64>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Inv_Sbox1,Inv_Sbox2,myrand,0);
+	decrypt<64*64>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 128:
@@ -694,7 +714,7 @@ int main(int argc, char** argv) {
       if(ctr)
 	encrypt_ctr<128*128>(seq2, seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,myrand,0);
       else
-	decrypt<128*128>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Inv_Sbox1,Inv_Sbox2,myrand,0);
+	decrypt<128*128>(seq2,seq,len,RM1_copy,Pbox,PboxRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   }