X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Cipher_code.git/blobdiff_plain/8ecaf9b70f89bea2b5f99256ea91716eb438b4a9..4f3a74558527f668369c0aab957185545f5d5b45:/OneRoundIoT/EnhancedOneRound/enhanced_oneround.cpp?ds=inline

diff --git a/OneRoundIoT/EnhancedOneRound/enhanced_oneround.cpp b/OneRoundIoT/EnhancedOneRound/enhanced_oneround.cpp
index 37ecfaf..ee0e04b 100644
--- a/OneRoundIoT/EnhancedOneRound/enhanced_oneround.cpp
+++ b/OneRoundIoT/EnhancedOneRound/enhanced_oneround.cpp
@@ -32,13 +32,13 @@ using namespace std;
 int key_size=256;
 int nb_test=1;
 int cbcprng=0;
-int cbc=0;
-int ecb=0;
+int cbcrm=0;
+int ecbrm=0;
 int ecbprng=0;
 
 
 
-
+typedef __uint64_t mylong;
 
 
 typedef unsigned char   uchar;
@@ -73,18 +73,22 @@ uint xorshift32(const uint t)
   return x;
 }
 
-ulong xorshift64(ulong t)
+
+mylong xorseed;
+
+mylong xorshift64()
 {
         /* Algorithm "xor" from p. 4 of Marsaglia, "Xorshift RNGs" */
-        ulong x = t;
+        mylong x = xorseed;
         x ^= x >> 12; // a
         x ^= x << 25; // b
         x ^= x >> 27; // c
 
 
-        return x;
+        return xorseed=x;
 }
 
+/*
 __uint128_t g_lehmer64_state;
 
 inline uint64_t splitmix64_stateless(uint64_t index) {
@@ -106,7 +110,7 @@ inline uint64_t lehmer64() {
   return g_lehmer64_state >> 64;
 }
 
-
+*/
 
 
 
@@ -187,7 +191,262 @@ void prga(uchar *sc, int ldata, uchar *r) {
 
 
 template<int h>
-void encrypt_ecb(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, ulong myrand, int debug) {
+void encrypt_ecb_prng(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, mylong myrand, int debug) {
+
+  uchar X[h];
+  uchar Y[h];
+  uchar fX[h];
+  uchar gY[h];
+  uchar *RM1=&RM[0];
+  uchar *RM2=&RM[h];
+  uchar tmp[h];
+  mylong *rm1=(mylong*)RM1;
+  mylong *rm2=(mylong*)RM2;
+
+  
+  
+  for(int it=0;it<len/2;it++) {
+    int ind1=Pbox[it]*h;
+    int ind2=Pbox[it+len/2]*h;
+
+    
+    for(int a=0;a<(h>>3);a++) {
+      myrand=xorshift64();
+      rm1[a]=myrand;
+      myrand=xorshift64();
+      rm2[a]=myrand;
+    }  
+
+
+  
+    for(int a=0;a<h;a+=4) {
+      X[a]=seq_in[ind2+a];
+      X[a+1]=seq_in[ind2+a+1];
+      X[a+2]=seq_in[ind2+a+2];
+      X[a+3]=seq_in[ind2+a+3];
+    }
+
+    for(int a=0;a<h;a+=4) {
+      Y[a]=seq_in[ind1+a];
+      Y[a+1]=seq_in[ind1+a+1];
+      Y[a+2]=seq_in[ind1+a+2];
+      Y[a+3]=seq_in[ind1+a+3];
+    }
+
+
+    for(int a=0;a<h;a+=4) {
+      tmp[a]=Sbox1[X[a]^RM1[a]];
+      tmp[a+1]=Sbox1[X[a+1]^RM1[a+1]];
+      tmp[a+2]=Sbox1[X[a+2]^RM1[a+2]];
+      tmp[a+3]=Sbox1[X[a+3]^RM1[a+3]];
+    }
+    
+    for(int a=0;a<h;a+=4) {
+      fX[a]=Sbox2[tmp[a]^Y[a]];
+      fX[a+1]=Sbox2[tmp[a+1]^Y[a+1]];
+      fX[a+2]=Sbox2[tmp[a+2]^Y[a+2]];
+      fX[a+3]=Sbox2[tmp[a+3]^Y[a+3]];
+    }
+
+      
+    /*for(int a=0;a<h;a+=4) {
+      fX[a]=Sbox2[Sbox1[X[a]^RM1[a]]^Y[a]];
+      fX[a+1]=Sbox2[Sbox1[X[a+1]^RM1[a+1]]^Y[a+1]];
+      fX[a+2]=Sbox2[Sbox1[X[a+2]^RM1[a+2]]^Y[a+2]];
+      fX[a+3]=Sbox2[Sbox1[X[a+3]^RM1[a+3]]^Y[a+3]];
+      }
+    */
+
+
+
+    for(int a=0;a<h;a+=4) {
+      tmp[a]=Sbox2[fX[a]^Y[a]];
+      tmp[a+1]=Sbox2[fX[a+1]^Y[a+1]];
+      tmp[a+2]=Sbox2[fX[a+2]^Y[a+2]];
+      tmp[a+3]=Sbox2[fX[a+3]^Y[a+3]];
+
+    }   
+    for(int a=0;a<h;a+=4) {
+      gY[a]=Sbox1[tmp[a]^RM2[a]];
+      gY[a+1]=Sbox1[tmp[a+1]^RM2[a+1]];
+      gY[a+2]=Sbox1[tmp[a+2]^RM2[a+2]];
+      gY[a+3]=Sbox1[tmp[a+3]^RM2[a+3]];
+
+    }   
+    
+    
+    /* for(int a=0;a<h;a+=4) {
+      gY[a]=Sbox1[Sbox2[fX[a]^Y[a]]^RM2[a]];
+      gY[a+1]=Sbox1[Sbox2[fX[a+1]^Y[a+1]]^RM2[a+1]];
+      gY[a+2]=Sbox1[Sbox2[fX[a+2]^Y[a+2]]^RM2[a+2]];
+      gY[a+3]=Sbox1[Sbox2[fX[a+3]^Y[a+3]]^RM2[a+3]];
+
+      } */  
+    
+
+  
+
+
+
+    for(int a=0;a<h;a+=4) {
+      seq_out[ind2+a]=gY[a];
+      seq_out[ind2+a+1]=gY[a+1];
+      seq_out[ind2+a+2]=gY[a+2];
+      seq_out[ind2+a+3]=gY[a+3];
+    }
+
+    for(int a=0;a<h;a+=4) {
+      seq_out[ind1+a]=fX[a];
+      seq_out[ind1+a+1]=fX[a+1];
+      seq_out[ind1+a+2]=fX[a+2];
+      seq_out[ind1+a+3]=fX[a+3];
+    }
+
+
+
+  }
+  
+
+
+
+}
+
+
+
+
+
+
+
+
+template<int h>
+void decrypt_ecb_prng(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uchar *Inv_Sbox1, uchar *Inv_Sbox2,  mylong myrand, int debug) {
+
+  uchar invfX[h];
+  uchar invgY[h];
+  uchar fX[h];
+  uchar gY[h];
+  uchar RM1[h];
+  uchar RM2[h];
+  uchar tmp[h];
+  mylong *rm1=(mylong*)RM1;
+  mylong *rm2=(mylong*)RM2;
+
+  
+  for(int it=0;it<len/2;it++) {
+    int ind1=Pbox[it]*h;
+    int ind2=Pbox[it+len/2]*h;
+
+
+    for(int a=0;a<(h>>3);a++) {
+      myrand=xorshift64();
+      rm1[a]=myrand;
+      myrand=xorshift64();
+      rm2[a]=myrand;
+    }
+
+
+    
+    for(int a=0;a<h;a+=4) {
+      gY[a]=seq_in[ind2+a];
+      gY[a+1]=seq_in[ind2+a+1];
+      gY[a+2]=seq_in[ind2+a+2];
+      gY[a+3]=seq_in[ind2+a+3];
+    }
+
+    for(int a=0;a<h;a+=4) {
+      fX[a]=seq_in[ind1+a];
+      fX[a+1]=seq_in[ind1+a+1];
+      fX[a+2]=seq_in[ind1+a+2];
+      fX[a+3]=seq_in[ind1+a+3];
+    }
+
+
+
+
+    for(int a=0;a<h;a+=4) {
+      tmp[a]=Inv_Sbox1[gY[a]]^RM2[a];
+      tmp[a+1]=Inv_Sbox1[gY[a+1]]^RM2[a+1];
+      tmp[a+2]=Inv_Sbox1[gY[a+2]]^RM2[a+2];
+      tmp[a+3]=Inv_Sbox1[gY[a+3]]^RM2[a+3];
+    } 
+
+
+    for(int a=0;a<h;a+=4) {
+      invgY[a]=Inv_Sbox2[tmp[a]]^fX[a];
+      invgY[a+1]=Inv_Sbox2[tmp[a+1]]^fX[a+1];
+      invgY[a+2]=Inv_Sbox2[tmp[a+2]]^fX[a+2];
+      invgY[a+3]=Inv_Sbox2[tmp[a+3]]^fX[a+3];
+    } 
+
+
+
+    /*  for(int a=0;a<h;a+=4) {
+      invgY[a]=Inv_Sbox2[Inv_Sbox1[gY[a]]^RM2[a]]^fX[a];
+      invgY[a+1]=Inv_Sbox2[Inv_Sbox1[gY[a+1]]^RM2[a+1]]^fX[a+1];
+      invgY[a+2]=Inv_Sbox2[Inv_Sbox1[gY[a+2]]^RM2[a+2]]^fX[a+2];
+      invgY[a+3]=Inv_Sbox2[Inv_Sbox1[gY[a+3]]^RM2[a+3]]^fX[a+3];
+      } */    
+
+
+
+
+    for(int a=0;a<h;a+=4) {
+      tmp[a]=Inv_Sbox2[fX[a]]^invgY[a];
+      tmp[a+1]=Inv_Sbox2[fX[a+1]]^invgY[a+1];
+      tmp[a+2]=Inv_Sbox2[fX[a+2]]^invgY[a+2];
+      tmp[a+3]=Inv_Sbox2[fX[a+3]]^invgY[a+3];
+
+    }
+    
+    for(int a=0;a<h;a+=4) {
+      invfX[a]=Inv_Sbox1[tmp[a]]^RM1[a];
+      invfX[a+1]=Inv_Sbox1[tmp[a+1]]^RM1[a+1];
+      invfX[a+2]=Inv_Sbox1[tmp[a+2]]^RM1[a+2];
+      invfX[a+3]=Inv_Sbox1[tmp[a+3]]^RM1[a+3];
+
+    }
+
+    
+    /*  
+    for(int a=0;a<h;a+=4) {
+      invfX[a]=Inv_Sbox1[Inv_Sbox2[fX[a]]^invgY[a]]^RM1[a];
+      invfX[a+1]=Inv_Sbox1[Inv_Sbox2[fX[a+1]]^invgY[a+1]]^RM1[a+1];
+      invfX[a+2]=Inv_Sbox1[Inv_Sbox2[fX[a+2]]^invgY[a+2]]^RM1[a+2];
+      invfX[a+3]=Inv_Sbox1[Inv_Sbox2[fX[a+3]]^invgY[a+3]]^RM1[a+3];
+
+    }
+    */
+
+    for(int a=0;a<h;a+=4) {
+      seq_out[ind2+a]=invfX[a];
+      seq_out[ind2+a+1]=invfX[a+1];
+      seq_out[ind2+a+2]=invfX[a+2];
+      seq_out[ind2+a+3]=invfX[a+3];
+    }
+
+    for(int a=0;a<h;a+=4) {
+      seq_out[ind1+a]=invgY[a];
+      seq_out[ind1+a+1]=invgY[a+1];
+      seq_out[ind1+a+2]=invgY[a+2];
+      seq_out[ind1+a+3]=invgY[a+3];
+    }
+
+
+
+  }
+  
+
+
+
+}
+
+
+
+
+
+
+template<int h>
+void encrypt_ecb_rm(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, mylong myrand, int debug) {
 
   uchar X[h];
   uchar Y[h];
@@ -196,8 +455,8 @@ void encrypt_ecb(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, in
   uchar RM1[h];
   uchar RM2[h];
   uchar tmp[h];
-  ulong *rm1=(ulong*)RM1;
-  ulong *rm2=(ulong*)RM2;
+  mylong *rm1=(mylong*)RM1;
+  mylong *rm2=(mylong*)RM2;
   
   for(int it=0;it<len/2;it++) {
     int ind1=Pbox[it]*h;
@@ -205,9 +464,9 @@ void encrypt_ecb(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, in
 
     
     for(int a=0;a<(h>>3);a++) {
-      myrand=lehmer64();
+      myrand=xorshift64();
       rm1[a]=myrand;
-      myrand=lehmer64();
+      myrand=xorshift64();
       rm2[a]=myrand;
     }  
 
@@ -313,7 +572,7 @@ void encrypt_ecb(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, in
 
 
 template<int h>
-void decrypt_ecb(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uchar *Inv_Sbox1, uchar *Inv_Sbox2,  ulong myrand, int debug) {
+void decrypt_ecb_rm(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uchar *Inv_Sbox1, uchar *Inv_Sbox2,  mylong myrand, int debug) {
 
   uchar invfX[h];
   uchar invgY[h];
@@ -322,8 +581,8 @@ void decrypt_ecb(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, i
   uchar RM1[h];
   uchar RM2[h];
   uchar tmp[h];
-  ulong *rm1=(ulong*)RM1;
-  ulong *rm2=(ulong*)RM2;
+  mylong *rm1=(mylong*)RM1;
+  mylong *rm2=(mylong*)RM2;
   
   for(int it=0;it<len/2;it++) {
     int ind1=Pbox[it]*h;
@@ -331,9 +590,9 @@ void decrypt_ecb(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, i
 
 
     for(int a=0;a<(h>>3);a++) {
-      myrand=lehmer64();
+      myrand=xorshift64();
       rm1[a]=myrand;
-      myrand=lehmer64();
+      myrand=xorshift64();
       rm2[a]=myrand;
     }
 
@@ -606,11 +865,14 @@ void encrypt_cbc_prng(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbo
   uchar gY[h];
   uchar IV1[h];
   uchar IV2[h];
-  uchar RM1[h];
-  uchar RM2[h];
+  uchar *RM1=&RM[0];
+  uchar *RM2=&RM[h];
   uchar tmp[h];
-  ulong *rm1=(ulong*)RM1;
-  ulong *rm2=(ulong*)RM2;
+  mylong *rm1=(mylong*)RM1;
+  mylong *rm2=(mylong*)RM2;
+
+
+
   
   for(int it=0;it<len/2;it++) {
     int ind1=Pbox[it]*h;
@@ -618,9 +880,9 @@ void encrypt_cbc_prng(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbo
 
     
     for(int a=0;a<(h>>3);a++) {
-      myrand=lehmer64();
+      myrand=xorshift64();
       rm1[a]=myrand;
-      myrand=lehmer64();
+      myrand=xorshift64();
       rm2[a]=myrand;
     }  
 
@@ -775,11 +1037,13 @@ void decrypt_cbc_prng(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pb
   uchar gY[h];
   uchar IV1[h];
   uchar IV2[h];
-  uchar RM1[h];
-  uchar RM2[h];
+  uchar *RM1=&RM[0];
+  uchar *RM2=&RM[h];
+//  uchar RM1[h];
+//  uchar RM2[h];
   uchar tmp[h];
-  ulong *rm1=(ulong*)RM1;
-  ulong *rm2=(ulong*)RM2;
+  mylong *rm1=(mylong*)RM1;
+  mylong *rm2=(mylong*)RM2;
   
   for(int it=0;it<len/2;it++) {
     int ind1=Pbox[it]*h;
@@ -787,9 +1051,9 @@ void decrypt_cbc_prng(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pb
 
     
     for(int a=0;a<(h>>3);a++) {
-      myrand=lehmer64();
+      myrand=xorshift64();
       rm1[a]=myrand;
-      myrand=lehmer64();
+      myrand=xorshift64();
       rm2[a]=myrand;
     }  
     
@@ -905,7 +1169,7 @@ void decrypt_cbc_prng(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pb
 
 
 template<int h>
-void encrypt_cbc_rm(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uint myrand, int debug) {
+void encrypt_cbc_rm(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uchar *IV, int debug) {
 
   uchar X[h];
   uchar Y[h];
@@ -917,30 +1181,32 @@ void encrypt_cbc_rm(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox,
   uchar *RM2;
   uchar tmp[h];
 
+
+
   for(int a=0;a<h;a+=4) {
-    IV1[a]=RM[h+a];
-    IV1[a+1]=RM[h+a+1];
-    IV1[a+2]=RM[h+a+2];
-    IV1[a+3]=RM[h+a+3];
+    IV1[a]=IV[a];
+    IV1[a+1]=IV[a+1];
+    IV1[a+2]=IV[a+2];
+    IV1[a+3]=IV[a+3];
   }
 
+
   for(int a=0;a<h;a+=4) {
-    IV2[a]=RM[h*h+a];
-    IV2[a+1]=RM[h*h+a+1];
-    IV2[a+2]=RM[h*h+a+2];
-    IV2[a+3]=RM[h*h+a+3];
+    IV2[a]=IV[h+a];
+    IV2[a+1]=IV[h+a+1];
+    IV2[a+2]=IV[h+a+2];
+    IV2[a+3]=IV[h+a+3];
 
   }
- 
-
 
   for(int it=0;it<len/2;it++) {
     int ind1=Pbox[it]*h;
     int ind2=Pbox[it+len/2]*h;
 
     RM1=&RM[PboxSRM[it]*h];
-    RM2=&RM[h*h+PboxSRM[it]*h];
-  
+    RM2=&RM[h*h+PboxSRM[len/2-it]*h];
+
+    
     for(int a=0;a<h;a+=4) {
       X[a]=seq_in[ind2+a];
       X[a+1]=seq_in[ind2+a+1];
@@ -1082,7 +1348,7 @@ void encrypt_cbc_rm(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox,
 
 
 template<int h>
-void decrypt_cbc_rm(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uchar *Inv_Sbox1, uchar *Inv_Sbox2,  uint myrand, int debug) {
+void decrypt_cbc_rm(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uchar *Inv_Sbox1, uchar *Inv_Sbox2,   uchar *IV, int debug) {
 
   uchar invfX[h];
   uchar invgY[h];
@@ -1094,22 +1360,22 @@ void decrypt_cbc_rm(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox
   uchar *RM2;
   uchar tmp[h];
 
- for(int a=0;a<h;a+=4) {
-    IV1[a]=RM[h+a];
-    IV1[a+1]=RM[h+a+1];
-    IV1[a+2]=RM[h+a+2];
-    IV1[a+3]=RM[h+a+3];
-  }
 
   for(int a=0;a<h;a+=4) {
-    IV2[a]=RM[h*h+a];
-    IV2[a+1]=RM[h*h+a+1];
-    IV2[a+2]=RM[h*h+a+2];
-    IV2[a+3]=RM[h*h+a+3];
-
+    IV1[a]=IV[a];
+    IV1[a+1]=IV[a+1];
+    IV1[a+2]=IV[a+2];
+    IV1[a+3]=IV[a+3];
   }
 
 
+  for(int a=0;a<h;a+=4) {
+    IV2[a]=IV[h+a];
+    IV2[a+1]=IV[h+a+1];
+    IV2[a+2]=IV[h+a+2];
+    IV2[a+3]=IV[h+a+3];
+
+  }
   
   for(int it=0;it<len/2;it++) {
     int ind1=Pbox[it]*h;
@@ -1117,8 +1383,9 @@ void decrypt_cbc_rm(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox
 
 
     RM1=&RM[PboxSRM[it]*h];
-    RM2=&RM[h*h+PboxSRM[it]*h];
-    
+    RM2=&RM[h*h+PboxSRM[len/2-it]*h];
+
+
 
     
     for(int a=0;a<h;a+=4) {
@@ -1504,24 +1771,24 @@ int main(int argc, char** argv) {
   
   for(int i=1; i<argc; i++){
     if(strncmp(argv[i],"nb",2)==0)    nb_test = atoi(&(argv[i][2]));    //nb of test         
-    if(strncmp(argv[i],"cbc",3)==0) cbc=1;       
-    if(strncmp(argv[i],"cbcprng",7)==0) {cbcprng=1;cbc=0;}
-    if(strncmp(argv[i],"ecb",3)==0) ecb = 1;
-    if(strncmp(argv[i],"ecbprng",7)==0) {ecbprng=1; ecb=0;}
+    if(strncmp(argv[i],"cbcrm",5)==0) cbcrm=1;       
+    if(strncmp(argv[i],"cbcprng",7)==0) {cbcprng=1;cbcrm=0;}
+    if(strncmp(argv[i],"ecbrm",5)==0) ecbrm = 1;
+    if(strncmp(argv[i],"ecbprng",7)==0) {ecbprng=1; ecbrm=0;}
     if(strncmp(argv[i],"h",1)==0) h = atoi(&(argv[i][1]));          //size of block
     if(strncmp(argv[i],"sizebuf",7)==0) size_buf = atoi(&(argv[i][7]));          //SIZE of the buffer
     if(strncmp(argv[i],"lena",4)==0) lena = atoi(&(argv[i][4]));          //Use Lena or buffer
   }
 
   printf("nb times %d\n",nb_test);
-  printf("cbc %d\n",cbc);
+  printf("cbcrm %d\n",cbcrm);
   printf("cbcprng %d\n",cbcprng);
-  printf("ecb %d\n",ecb);
+  printf("ecbrm %d\n",ecbrm);
+  printf("ecbprng %d\n",ecbprng);
   printf("h %d\n",h);
   printf("lena %d\n",lena);
   printf("size_buf %d\n",size_buf);
 
-  int h2=h*h;
   
 
       
@@ -1639,12 +1906,12 @@ int main(int argc, char** argv) {
   uchar Sbox2[256];  
   uchar Inv_Sbox1[256];
   uchar Inv_Sbox2[256];
-  uchar sc[h2*2];  
-  uchar RM[h2*2];
-
-
-  ulong myrand=0;
+  uchar sc[256];  
+  uchar RM[h*h*2+256];
+  uchar IV[2*h];
 
+  mylong myrand=0;
+ 
 
   double time_encrypt=0;
   double time_decrypt=0;
@@ -1657,7 +1924,7 @@ int main(int argc, char** argv) {
   rc4key(&DK[8], Sbox2, 8);
   
   rc4key(&DK[16], sc, 16);
-  prga(sc, h2*2, RM);
+  prga(sc, h*h*2+256, RM);
 
 
 
@@ -1703,8 +1970,8 @@ int main(int argc, char** argv) {
   inverse_tables(Sbox2,256,Inv_Sbox2);
 
 
-
-  lehmer64_seed(myrand);
+  xorseed=myrand;
+//  lehmer64_seed(myrand);
   time_encrypt=0;
   t=TimeStart();
 
@@ -1715,10 +1982,12 @@ int main(int argc, char** argv) {
     {
       if(cbcprng)
 	encrypt_cbc_prng<4>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(cbc)
-	encrypt_cbc_rm<4>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(ecb)
-	encrypt_ecb<4>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(cbcrm)
+	encrypt_cbc_rm<4>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,IV,0);
+      if(ecbrm)
+	encrypt_ecb_rm<4>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(ecbprng)
+	encrypt_ecb_prng<4>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
     }
     break;
   case 8: 
@@ -1726,10 +1995,12 @@ int main(int argc, char** argv) {
     {
       if(cbcprng)
 	encrypt_cbc_prng<8>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(cbc)
-	encrypt_cbc_rm<8>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(ecb)
-	encrypt_ecb<8>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(cbcrm)
+	encrypt_cbc_rm<8>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,IV,0);
+      if(ecbrm)
+	encrypt_ecb_rm<8>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(ecbprng)
+	encrypt_ecb_prng<8>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
     }
     break;
   case 16: 
@@ -1737,10 +2008,12 @@ int main(int argc, char** argv) {
     {
       if(cbcprng)
 	encrypt_cbc_prng<16>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(cbc)
-	encrypt_cbc_rm<16>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(ecb)
-	encrypt_ecb<16>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(cbcrm)
+	encrypt_cbc_rm<16>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,IV,0);
+      if(ecbrm)
+	encrypt_ecb_rm<16>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(ecbprng)
+	encrypt_ecb_prng<16>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
     }
     break;
   case 32: 
@@ -1748,10 +2021,12 @@ int main(int argc, char** argv) {
     {
       if(cbcprng)
 	encrypt_cbc_prng<32>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(cbc)
-	encrypt_cbc_rm<32>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(ecb)
-	encrypt_ecb<32>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(cbcrm)
+	encrypt_cbc_rm<32>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,IV,0);
+      if(ecbrm)
+	encrypt_ecb_rm<32>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(ecbprng)
+	encrypt_ecb_prng<32>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
     }
     break;
   case 64: 
@@ -1759,10 +2034,12 @@ int main(int argc, char** argv) {
     {
       if(cbcprng)
 	encrypt_cbc_prng<64>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(cbc)
-	encrypt_cbc_rm<64>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(ecb)
-	encrypt_ecb<64>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(cbcrm)
+	encrypt_cbc_rm<64>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,IV,0);
+      if(ecbrm)
+	encrypt_ecb_rm<64>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(ecbprng)
+	encrypt_ecb_prng<64>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
       
     }
     break;
@@ -1771,10 +2048,12 @@ int main(int argc, char** argv) {
     {
       if(cbcprng)
 	encrypt_cbc_prng<128>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(cbc)
-	encrypt_cbc_rm<128>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(ecb)
-	encrypt_ecb<128>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(cbcrm)
+	encrypt_cbc_rm<128>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,IV,0);
+      if(ecbrm)
+	encrypt_ecb_rm<128>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(ecbprng)
+	encrypt_ecb_prng<128>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
       
     }
     break;
@@ -1783,10 +2062,12 @@ int main(int argc, char** argv) {
     {
       if(cbcprng)
 	encrypt_cbc_prng<256>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(cbc)
-	encrypt_cbc_rm<256>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      if(ecb)
-	encrypt_ecb<256>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(cbcrm)
+	encrypt_cbc_rm<256>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,IV,0);
+      if(ecbrm)
+	encrypt_ecb_rm<256>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
+      if(ecbprng)
+	encrypt_ecb_prng<256>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
       
     }
     break;
@@ -1805,8 +2086,9 @@ int main(int argc, char** argv) {
     store_RGB_pixmap("lena2.ppm", data_R, data_G, data_B, width, height);
   }
 
-  
-  lehmer64_seed(myrand);
+
+  xorseed=myrand;
+  // lehmer64_seed(myrand);
   time_decrypt=0;
   t=TimeStart();
   switch(h) {
@@ -1814,68 +2096,84 @@ int main(int argc, char** argv) {
     for(i=0;i<nb_test;i++) {
       if(cbcprng)
 	decrypt_cbc_prng<4>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(cbc)
-	decrypt_cbc_rm<4>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(ecb)
-	decrypt_ecb<4>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(cbcrm)
+	decrypt_cbc_rm<4>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,IV,0);
+      if(ecbrm)
+	decrypt_ecb_rm<4>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(ecbprng)
+	decrypt_ecb_prng<4>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 8:
     for(i=0;i<nb_test;i++) {
       if(cbcprng)
 	decrypt_cbc_prng<8>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(cbc)
-	decrypt_cbc_rm<8>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(ecb)
-	decrypt_ecb<8>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(cbcrm)
+	decrypt_cbc_rm<8>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,IV,0);
+      if(ecbrm)
+	decrypt_ecb_rm<8>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(ecbprng)
+	decrypt_ecb_prng<8>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 16:
     for(i=0;i<nb_test;i++) {
       if(cbcprng)
 	decrypt_cbc_prng<16>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(cbc)
-	decrypt_cbc_rm<16>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(ecb)
-	decrypt_ecb<16>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(cbcrm)
+	decrypt_cbc_rm<16>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,IV,0);
+      if(ecbrm)
+	decrypt_ecb_rm<16>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(ecbprng)
+	decrypt_ecb_prng<16>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 32:
     for(i=0;i<nb_test;i++) {
-      if(cbc)
+      if(cbcprng)
 	decrypt_cbc_prng<32>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      else
-	decrypt_ecb<32>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(cbcrm)
+	decrypt_cbc_rm<32>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,IV,0);
+      if(ecbrm)
+	decrypt_ecb_rm<32>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(ecbprng)
+	decrypt_ecb_prng<32>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 64:
     for(i=0;i<nb_test;i++) {
       if(cbcprng)
 	decrypt_cbc_prng<64>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(cbc)
-	decrypt_cbc_rm<64>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(ecb)
-	decrypt_ecb<64>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(cbcrm)
+	decrypt_cbc_rm<64>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,IV,0);
+      if(ecbrm)
+	decrypt_ecb_rm<64>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(ecbprng)
+	decrypt_ecb_prng<64>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 128:
     for(i=0;i<nb_test;i++) {
       if(cbcprng)
 	decrypt_cbc_prng<128>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(cbc)
-	decrypt_cbc_rm<128>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(ecb)
-	decrypt_ecb<128>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(cbcrm)
+	decrypt_cbc_rm<128>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,IV,0);
+      if(ecbrm)
+	decrypt_ecb_rm<128>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(ecbprng)
+	decrypt_ecb_prng<128>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   case 256:
     for(i=0;i<nb_test;i++) {
       if(cbcprng)
 	decrypt_cbc_prng<256>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(cbc)
-	decrypt_cbc_rm<256>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      if(ecb)
-	decrypt_ecb<256>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(cbcrm)
+	decrypt_cbc_rm<256>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,IV,0);
+      if(ecbrm)
+	decrypt_ecb_rm<256>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+      if(ecbprng)
+	decrypt_ecb_prng<256>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
     }
     break;
   }
@@ -1904,6 +2202,5 @@ int main(int argc, char** argv) {
   }
   
 
-
   return 0;
 }