From 8ecaf9b70f89bea2b5f99256ea91716eb438b4a9 Mon Sep 17 00:00:00 2001
From: couturie <you@example.com>
Date: Mon, 22 Oct 2018 21:11:04 +0200
Subject: [PATCH] GROS BUG PRGA !!!!!!!!!!!!!!!!!!!!!!!!! A CORRIGER PARTOUT
 !!!!!!!!!

---
 OneRoundIoT/EnhancedOneRound/Makefile         |    6 +-
 .../EnhancedOneRound/enhanced_oneround.cpp    | 1206 +++++++++++++++--
 OneRoundIoT/OneRound/one_round_hash.cpp       |    2 +-
 OneRoundIoT/OneRound/one_round_new.cpp        |    2 +-
 4 files changed, 1095 insertions(+), 121 deletions(-)

diff --git a/OneRoundIoT/EnhancedOneRound/Makefile b/OneRoundIoT/EnhancedOneRound/Makefile
index 43e0b73..da280af 100644
--- a/OneRoundIoT/EnhancedOneRound/Makefile
+++ b/OneRoundIoT/EnhancedOneRound/Makefile
@@ -3,12 +3,12 @@ C=gcc
 
 uname_m := $(shell uname -m)
 ifeq ($(uname_m),armv7l)
-CFLAGS=-O3  -march=armv7-a -mtune=cortex-a8 -mfpu=neon -ftree-vectorize -lrt `pkg-config --cflags --libs glib-2.0`
+CFLAGS=-O3  -march=armv7-a -mtune=cortex-a8 -mfpu=neon -ftree-vectorize -lrt `pkg-config --cflags --libs glib-2.0` 
 else
 ifeq ($(uname_m),armv6l)
-CFLAGS=-O3   -march=armv6 -mfpu=vfp -mfloat-abi=hard -lrt `pkg-config --cflags --libs glib-2.0`
+CFLAGS=-O3   -march=armv6 -mfpu=vfp -mfloat-abi=hard -lrt `pkg-config --cflags --libs glib-2.0` 
 else
-CFLAGS=-O3 `pkg-config --cflags --libs glib-2.0`
+CFLAGS=-O3 `pkg-config --cflags --libs glib-2.0` 
 endif
 endif
 
diff --git a/OneRoundIoT/EnhancedOneRound/enhanced_oneround.cpp b/OneRoundIoT/EnhancedOneRound/enhanced_oneround.cpp
index 954a127..37ecfaf 100644
--- a/OneRoundIoT/EnhancedOneRound/enhanced_oneround.cpp
+++ b/OneRoundIoT/EnhancedOneRound/enhanced_oneround.cpp
@@ -31,8 +31,10 @@ using namespace std;
 
 int key_size=256;
 int nb_test=1;
+int cbcprng=0;
 int cbc=0;
-
+int ecb=0;
+int ecbprng=0;
 
 
 
@@ -61,87 +63,838 @@ double TimeStop(double t)
 
 
 
-uint xorshift32(const uint t)
-{
-  /* Algorithm "xor" from p. 4 of Marsaglia, "Xorshift RNGs" */
-  uint x = t;
-  x ^= x << 13;
-  x ^= x >> 17;
-  x ^= x << 5;
-  return x;
-}
+uint xorshift32(const uint t)
+{
+  /* Algorithm "xor" from p. 4 of Marsaglia, "Xorshift RNGs" */
+  uint x = t;
+  x ^= x << 13;
+  x ^= x >> 17;
+  x ^= x << 5;
+  return x;
+}
+
+ulong xorshift64(ulong t)
+{
+        /* Algorithm "xor" from p. 4 of Marsaglia, "Xorshift RNGs" */
+        ulong x = t;
+        x ^= x >> 12; // a
+        x ^= x << 25; // b
+        x ^= x >> 27; // c
+
+
+        return x;
+}
+
+__uint128_t g_lehmer64_state;
+
+inline uint64_t splitmix64_stateless(uint64_t index) {
+  uint64_t z = (index + UINT64_C(0x9E3779B97F4A7C15));
+  z = (z ^ (z >> 30)) * UINT64_C(0xBF58476D1CE4E5B9);
+  z = (z ^ (z >> 27)) * UINT64_C(0x94D049BB133111EB);
+  return z ^ (z >> 31);
+}
+
+
+inline void lehmer64_seed(uint64_t seed) {
+  g_lehmer64_state = (((__uint128_t)splitmix64_stateless(seed)) << 64) +
+                     splitmix64_stateless(seed + 1);
+}
+
+inline uint64_t lehmer64() {
+  g_lehmer64_state *= UINT64_C(0xda942042e4dd58b5);
+  ;
+  return g_lehmer64_state >> 64;
+}
+
+
+
+
+
+void inverse_tables(uchar *tab, int size_tab,uchar *inv_perm_tabs) {
+
+  for(int i=0;i<size_tab;i++) {
+    inv_perm_tabs[tab[i]] = i;
+  }
+
+}
+
+void inverse_tables_int(int *tab, int size_tab,int *inv_perm_tabs) {
+
+  for(int i=0;i<size_tab;i++) {
+    inv_perm_tabs[tab[i]] = i;
+  }
+
+}
+
+
+
+void rc4key(uchar *key, uchar *sc, int size_DK) {
+
+  for(int i=0;i<256;i++) {
+    sc[i]=i;
+  }
+
+
+  uchar j0 = 0;
+  for(int i0=0; i0<256; i0++) {
+    j0 = (j0 + sc[i0] + key[i0%size_DK] )&0xFF;
+    uchar tmp = sc[i0];
+    sc[i0] = sc[j0 ];
+    sc[j0] = tmp;
+  }
+}
+
+
+
+void rc4keyperm(uchar *key,int len, int rp,int *sc, int size_DK) {
+
+  //sc=1:len;
+
+
+  
+  for (int i=0;i<len;i++) {
+    sc[i]=i;
+  }
+  for (int it = 0; it < rp; it++) {
+    int j0 = 1;
+    for(int i0 = 0; i0<len; i0++) {
+      j0 = (j0 + sc[i0] + sc[j0] + key[i0%size_DK] )% len;
+      int tmp = sc[i0];
+      sc[i0] = sc[j0];
+      sc[j0] = tmp;
+    }
+
+  }
+}
+
+void prga(uchar *sc, int ldata, uchar *r) {
+  uchar i0=0;
+  uchar j0=0;
+
+  for (int it=0; it<ldata; it++) {
+    i0 = ((i0+1)%255);
+    j0 = (j0 + sc[i0])&0xFF;
+    uchar tmp = sc[i0];
+    sc[i0] = sc[j0];
+    sc[j0] = tmp;
+    r[it]=sc[(sc[i0]+sc[j0])&0xFF];
+  }
+}
+
+
+
+
+
+
+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) {
+
+  uchar X[h];
+  uchar Y[h];
+  uchar fX[h];
+  uchar gY[h];
+  uchar RM1[h];
+  uchar RM2[h];
+  uchar tmp[h];
+  ulong *rm1=(ulong*)RM1;
+  ulong *rm2=(ulong*)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=lehmer64();
+      rm1[a]=myrand;
+      myrand=lehmer64();
+      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(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) {
+
+  uchar invfX[h];
+  uchar invgY[h];
+  uchar fX[h];
+  uchar gY[h];
+  uchar RM1[h];
+  uchar RM2[h];
+  uchar tmp[h];
+  ulong *rm1=(ulong*)RM1;
+  ulong *rm2=(ulong*)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=lehmer64();
+      rm1[a]=myrand;
+      myrand=lehmer64();
+      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(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uint myrand, int debug) {
+
+  uchar X[h];
+  uchar Y[h];
+  uchar fX[h];
+  uchar gY[h];
+  uchar *RM1;
+  uchar *RM2;
+  
+  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];
+
+    
+    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) {
+      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) {
+      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(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) {
+
+  uchar invfX[h];
+  uchar invgY[h];
+  uchar fX[h];
+  uchar gY[h];
+  uchar *RM1;
+  uchar *RM2;
+  
+  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];
+
+    
+    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) {
+      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) {
+      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_cbc_prng(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uint myrand, int debug) {
+
+  uchar X[h];
+  uchar Y[h];
+  uchar fX[h];
+  uchar gY[h];
+  uchar IV1[h];
+  uchar IV2[h];
+  uchar RM1[h];
+  uchar RM2[h];
+  uchar tmp[h];
+  ulong *rm1=(ulong*)RM1;
+  ulong *rm2=(ulong*)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=lehmer64();
+      rm1[a]=myrand;
+      myrand=lehmer64();
+      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]=X[a]^RM1[a]^IV1[a];
+      tmp[a+1]=X[a+1]^RM1[a+1]^IV1[a+1];
+      tmp[a+2]=X[a+2]^RM1[a+2]^IV1[a+2];
+      tmp[a+3]=X[a+3]^RM1[a+3]^IV1[a+3];
+    }
+
+    for(int a=0;a<h;a+=4) {
+      tmp[a]=Sbox1[tmp[a]];
+      tmp[a+1]=Sbox1[tmp[a+1]];
+      tmp[a+2]=Sbox1[tmp[a+2]];
+      tmp[a+3]=Sbox1[tmp[a+3]];
+    }
+
+    
+    /*for(int a=0;a<h;a+=4) {
+      tmp[a]=Sbox1[X[a]^RM1[a]^IV1[a]];
+      tmp[a+1]=Sbox1[X[a+1]^RM1[a+1]^IV1[a+1]];
+      tmp[a+2]=Sbox1[X[a+2]^RM1[a+2]^IV1[a+2]];
+      tmp[a+3]=Sbox1[X[a+3]^RM1[a+3]^IV1[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]^IV1[a]]^Y[a]];
+      fX[a+1]=Sbox2[Sbox1[X[a+1]^RM1[a+1]^IV1[a+1]]^Y[a+1]];
+      fX[a+2]=Sbox2[Sbox1[X[a+2]^RM1[a+2]^IV1[a+2]]^Y[a+2]];
+      fX[a+3]=Sbox2[Sbox1[X[a+3]^RM1[a+3]^IV1[a+3]]^Y[a+3]];
+      }*/
+
+
+ for(int a=0;a<h;a+=4) {
+      tmp[a]=fX[a]^Y[a]^IV2[a];
+      tmp[a+1]=fX[a+1]^Y[a+1]^IV2[a+1];
+      tmp[a+2]=fX[a+2]^Y[a+2]^IV2[a+2];
+      tmp[a+3]=fX[a+3]^Y[a+3]^IV2[a+3];
+
+    }     
+
+ for(int a=0;a<h;a+=4) {
+      tmp[a]=Sbox2[tmp[a]];
+      tmp[a+1]=Sbox2[tmp[a+1]];
+      tmp[a+2]=Sbox2[tmp[a+2]];
+      tmp[a+3]=Sbox2[tmp[a+3]];
+
+    }     
+
+ /*
+    for(int a=0;a<h;a+=4) {
+      tmp[a]=Sbox2[fX[a]^Y[a]^IV2[a]];
+      tmp[a+1]=Sbox2[fX[a+1]^Y[a+1]^IV2[a+1]];
+      tmp[a+2]=Sbox2[fX[a+2]^Y[a+2]^IV2[a+2]];
+      tmp[a+3]=Sbox2[fX[a+3]^Y[a+3]^IV2[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]^IV2[a]]^RM2[a]];
+      gY[a+1]=Sbox1[Sbox2[fX[a+1]^Y[a+1]^IV2[a+1]]^RM2[a+1]];
+      gY[a+2]=Sbox1[Sbox2[fX[a+2]^Y[a+2]^IV2[a+2]]^RM2[a+2]];
+      gY[a+3]=Sbox1[Sbox2[fX[a+3]^Y[a+3]^IV2[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];
+    }
+    for(int a=0;a<h;a+=4) {
+      IV1[a]=fX[a];
+      IV1[a+1]=fX[a+1];
+      IV1[a+2]=fX[a+2];
+      IV1[a+3]=fX[a+3];
+    }
+
+    for(int a=0;a<h;a+=4) {
+      IV2[a]=gY[a];
+      IV2[a+1]=gY[a+1];
+      IV2[a+2]=gY[a+2];
+      IV2[a+3]=gY[a+3];
+    }
+
+  }
+  
+
+
+
+}
+
+
+
+
+
+
+
+
+template<int h>
+void decrypt_cbc_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,  uint myrand, int debug) {
+
+  uchar invfX[h];
+  uchar invgY[h];
+  uchar fX[h];
+  uchar gY[h];
+  uchar IV1[h];
+  uchar IV2[h];
+  uchar RM1[h];
+  uchar RM2[h];
+  uchar tmp[h];
+  ulong *rm1=(ulong*)RM1;
+  ulong *rm2=(ulong*)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=lehmer64();
+      rm1[a]=myrand;
+      myrand=lehmer64();
+      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) {
+      tmp[a]=Inv_Sbox2[tmp[a]];
+      tmp[a+1]=Inv_Sbox2[tmp[a+1]];
+      tmp[a+2]=Inv_Sbox2[tmp[a+2]];
+      tmp[a+3]=Inv_Sbox2[tmp[a+3]];
+    }   
 
 
-void inverse_tables(uchar *tab, int size_tab,uchar *inv_perm_tabs) {
+    
+    for(int a=0;a<h;a+=4) {
+      invgY[a]=tmp[a]^fX[a]^IV2[a];
+      invgY[a+1]=tmp[a+1]^fX[a+1]^IV2[a+1];
+      invgY[a+2]=tmp[a+2]^fX[a+2]^IV2[a+2];
+      invgY[a+3]=tmp[a+3]^fX[a+3]^IV2[a+3];
+    }   
 
-  for(int i=0;i<size_tab;i++) {
-    inv_perm_tabs[tab[i]] = i;
-  }
 
-}
+    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];
 
-void inverse_tables_int(int *tab, int size_tab,int *inv_perm_tabs) {
+    }
 
-  for(int i=0;i<size_tab;i++) {
-    inv_perm_tabs[tab[i]] = i;
-  }
 
-}
+    for(int a=0;a<h;a+=4) {
+      tmp[a]=Inv_Sbox1[tmp[a]];
+      tmp[a+1]=Inv_Sbox1[tmp[a+1]];
+      tmp[a+2]=Inv_Sbox1[tmp[a+2]];
+      tmp[a+3]=Inv_Sbox1[tmp[a+3]];
 
+    }
 
 
-void rc4key(uchar *key, uchar *sc, int size_DK) {
 
-  for(int i=0;i<256;i++) {
-    sc[i]=i;
-  }
 
+    for(int a=0;a<h;a+=4) {
+      invfX[a]=tmp[a]^RM1[a]^IV1[a];
+      invfX[a+1]=tmp[a+1]^RM1[a+1]^IV1[a+1];
+      invfX[a+2]=tmp[a+2]^RM1[a+2]^IV1[a+2];
+      invfX[a+3]=tmp[a+3]^RM1[a+3]^IV1[a+3];
 
-  uchar j0 = 0;
-  for(int i0=0; i0<256; i0++) {
-    j0 = (j0 + sc[i0] + key[i0%size_DK] )&0xFF;
-    uchar tmp = sc[i0];
-    sc[i0] = sc[j0 ];
-    sc[j0] = tmp;
-  }
-}
+    }
 
 
+    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];
+    }
 
-void rc4keyperm(uchar *key,int len, int rp,int *sc, int size_DK) {
+    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];
+    }
+    for(int a=0;a<h;a+=4) {
+      IV1[a]=fX[a];
+      IV1[a+1]=fX[a+1];
+      IV1[a+2]=fX[a+2];
+      IV1[a+3]=fX[a+3];
+    }
 
-  //sc=1:len;
+    for(int a=0;a<h;a+=4) {
+      IV2[a]=gY[a];
+      IV2[a+1]=gY[a+1];
+      IV2[a+2]=gY[a+2];
+      IV2[a+3]=gY[a+3];
+    }
 
 
-  
-  for (int i=0;i<len;i++) {
-    sc[i]=i;
   }
-  for (int it = 0; it < rp; it++) {
-    int j0 = 1;
-    for(int i0 = 0; i0<len; i0++) {
-      j0 = (j0 + sc[i0] + sc[j0] + key[i0%size_DK] )% len;
-      int tmp = sc[i0];
-      sc[i0] = sc[j0];
-      sc[j0] = tmp;
-    }
+  
 
-  }
-}
 
-void prga(uchar *sc, int ldata, uchar *r) {
-  uchar i0=0;
-  uchar j0=0;
 
-  for (int it=0; it<ldata; it++) {
-    i0 = ((i0+1)&0xFE); //%255);
-    j0 = (j0 + sc[i0])&0xFF;
-    uchar tmp = sc[i0];
-    sc[i0] = sc[j0];
-    sc[j0] = tmp;
-    r[it]=sc[(sc[i0]+sc[j0])&0xFF];
-  }
 }
 
 
@@ -149,26 +902,45 @@ 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, 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, uint myrand, int debug) {
 
   uchar X[h];
   uchar Y[h];
   uchar fX[h];
   uchar gY[h];
+  uchar IV1[h];
+  uchar IV2[h];
   uchar *RM1;
   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];
+
+  }
+ 
+
+
   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];
-
-    
+  
     for(int a=0;a<h;a+=4) {
       X[a]=seq_in[ind2+a];
       X[a+1]=seq_in[ind2+a+1];
@@ -185,20 +957,89 @@ void encrypt_ecb(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, in
 
 
     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]];
+      tmp[a]=X[a]^RM1[a]^IV1[a];
+      tmp[a+1]=X[a+1]^RM1[a+1]^IV1[a+1];
+      tmp[a+2]=X[a+2]^RM1[a+2]^IV1[a+2];
+      tmp[a+3]=X[a+3]^RM1[a+3]^IV1[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]];
+      tmp[a]=Sbox1[tmp[a]];
+      tmp[a+1]=Sbox1[tmp[a+1]];
+      tmp[a+2]=Sbox1[tmp[a+2]];
+      tmp[a+3]=Sbox1[tmp[a+3]];
+    }
+
+    
+    /*for(int a=0;a<h;a+=4) {
+      tmp[a]=Sbox1[X[a]^RM1[a]^IV1[a]];
+      tmp[a+1]=Sbox1[X[a+1]^RM1[a+1]^IV1[a+1]];
+      tmp[a+2]=Sbox1[X[a+2]^RM1[a+2]^IV1[a+2]];
+      tmp[a+3]=Sbox1[X[a+3]^RM1[a+3]^IV1[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]^IV1[a]]^Y[a]];
+      fX[a+1]=Sbox2[Sbox1[X[a+1]^RM1[a+1]^IV1[a+1]]^Y[a+1]];
+      fX[a+2]=Sbox2[Sbox1[X[a+2]^RM1[a+2]^IV1[a+2]]^Y[a+2]];
+      fX[a+3]=Sbox2[Sbox1[X[a+3]^RM1[a+3]^IV1[a+3]]^Y[a+3]];
+      }*/
+
+
+ for(int a=0;a<h;a+=4) {
+      tmp[a]=fX[a]^Y[a]^IV2[a];
+      tmp[a+1]=fX[a+1]^Y[a+1]^IV2[a+1];
+      tmp[a+2]=fX[a+2]^Y[a+2]^IV2[a+2];
+      tmp[a+3]=fX[a+3]^Y[a+3]^IV2[a+3];
+
+    }     
+
+ for(int a=0;a<h;a+=4) {
+      tmp[a]=Sbox2[tmp[a]];
+      tmp[a+1]=Sbox2[tmp[a+1]];
+      tmp[a+2]=Sbox2[tmp[a+2]];
+      tmp[a+3]=Sbox2[tmp[a+3]];
+
+    }     
+
+ /*
+    for(int a=0;a<h;a+=4) {
+      tmp[a]=Sbox2[fX[a]^Y[a]^IV2[a]];
+      tmp[a+1]=Sbox2[fX[a+1]^Y[a+1]^IV2[a+1]];
+      tmp[a+2]=Sbox2[fX[a+2]^Y[a+2]^IV2[a+2]];
+      tmp[a+3]=Sbox2[fX[a+3]^Y[a+3]^IV2[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]^IV2[a]]^RM2[a]];
+      gY[a+1]=Sbox1[Sbox2[fX[a+1]^Y[a+1]^IV2[a+1]]^RM2[a+1]];
+      gY[a+2]=Sbox1[Sbox2[fX[a+2]^Y[a+2]^IV2[a+2]]^RM2[a+2]];
+      gY[a+3]=Sbox1[Sbox2[fX[a+3]^Y[a+3]^IV2[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];
@@ -212,8 +1053,19 @@ void encrypt_ecb(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, in
       seq_out[ind1+a+2]=fX[a+2];
       seq_out[ind1+a+3]=fX[a+3];
     }
+    for(int a=0;a<h;a+=4) {
+      IV1[a]=fX[a];
+      IV1[a+1]=fX[a+1];
+      IV1[a+2]=fX[a+2];
+      IV1[a+3]=fX[a+3];
+    }
 
-
+    for(int a=0;a<h;a+=4) {
+      IV2[a]=gY[a];
+      IV2[a+1]=gY[a+1];
+      IV2[a+2]=gY[a+2];
+      IV2[a+3]=gY[a+3];
+    }
 
   }
   
@@ -230,14 +1082,34 @@ 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,  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,  uint myrand, int debug) {
 
   uchar invfX[h];
   uchar invgY[h];
   uchar fX[h];
   uchar gY[h];
+  uchar IV1[h];
+  uchar IV2[h];
   uchar *RM1;
   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];
+
+  }
+
+
   
   for(int it=0;it<len/2;it++) {
     int ind1=Pbox[it]*h;
@@ -246,6 +1118,7 @@ void decrypt_ecb(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, i
 
     RM1=&RM[PboxSRM[it]*h];
     RM2=&RM[h*h+PboxSRM[it]*h];
+    
 
     
     for(int a=0;a<h;a+=4) {
@@ -262,20 +1135,57 @@ void decrypt_ecb(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, i
       fX[a+3]=seq_in[ind1+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];
-    }     
+      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) {
+      tmp[a]=Inv_Sbox2[tmp[a]];
+      tmp[a+1]=Inv_Sbox2[tmp[a+1]];
+      tmp[a+2]=Inv_Sbox2[tmp[a+2]];
+      tmp[a+3]=Inv_Sbox2[tmp[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];
+      invgY[a]=tmp[a]^fX[a]^IV2[a];
+      invgY[a+1]=tmp[a+1]^fX[a+1]^IV2[a+1];
+      invgY[a+2]=tmp[a+2]^fX[a+2]^IV2[a+2];
+      invgY[a+3]=tmp[a+3]^fX[a+3]^IV2[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) {
+      tmp[a]=Inv_Sbox1[tmp[a]];
+      tmp[a+1]=Inv_Sbox1[tmp[a+1]];
+      tmp[a+2]=Inv_Sbox1[tmp[a+2]];
+      tmp[a+3]=Inv_Sbox1[tmp[a+3]];
+
+    }
+
+
+
+
+    for(int a=0;a<h;a+=4) {
+      invfX[a]=tmp[a]^RM1[a]^IV1[a];
+      invfX[a+1]=tmp[a+1]^RM1[a+1]^IV1[a+1];
+      invfX[a+2]=tmp[a+2]^RM1[a+2]^IV1[a+2];
+      invfX[a+3]=tmp[a+3]^RM1[a+3]^IV1[a+3];
 
     }
 
@@ -293,7 +1203,19 @@ void decrypt_ecb(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, i
       seq_out[ind1+a+2]=invgY[a+2];
       seq_out[ind1+a+3]=invgY[a+3];
     }
+    for(int a=0;a<h;a+=4) {
+      IV1[a]=fX[a];
+      IV1[a+1]=fX[a+1];
+      IV1[a+2]=fX[a+2];
+      IV1[a+3]=fX[a+3];
+    }
 
+    for(int a=0;a<h;a+=4) {
+      IV2[a]=gY[a];
+      IV2[a+1]=gY[a+1];
+      IV2[a+2]=gY[a+2];
+      IV2[a+3]=gY[a+3];
+    }
 
 
   }
@@ -307,6 +1229,8 @@ void decrypt_ecb(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, i
 
 
 
+/*
+
 template<int h>
 void encrypt_cbc(uchar* seq_in, uchar *seq_out, int len,uchar* RM, int *Pbox, int *PboxSRM, uchar *Sbox1, uchar *Sbox2, uint myrand, int debug) {
 
@@ -565,6 +1489,8 @@ void decrypt_cbc(uchar* seq_in, uchar *seq_out, int len, uchar* RM, int *Pbox, i
 
 
 }
+*/
+
 
 
 int main(int argc, char** argv) {
@@ -578,18 +1504,23 @@ 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 = atoi(&(argv[i][3]));          //CBC ? 1  otherwise CBC like
+    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],"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("ctr %d\n",ctr);
+  printf("nb times %d\n",nb_test);
+  printf("cbc %d\n",cbc);
+  printf("cbcprng %d\n",cbcprng);
+  printf("ecb %d\n",ecb);
   printf("h %d\n",h);
   printf("lena %d\n",lena);
   printf("size_buf %d\n",size_buf);
-*/
+
   int h2=h*h;
   
 
@@ -708,11 +1639,11 @@ int main(int argc, char** argv) {
   uchar Sbox2[256];  
   uchar Inv_Sbox1[256];
   uchar Inv_Sbox2[256];
-  uchar sc[256];  
+  uchar sc[h2*2];  
   uchar RM[h2*2];
 
 
-  uint myrand=0;
+  ulong myrand=0;
 
 
   double time_encrypt=0;
@@ -757,11 +1688,10 @@ int main(int argc, char** argv) {
 
 
   myrand=0;
-  for(int i=0;i<32;i++) {
+  for(int i=0;i<64;i++) {
     myrand|=DK[i]&1;
     myrand<<=1;
   }
-  uint myrand_copy=myrand;
 
  
 
@@ -774,7 +1704,7 @@ int main(int argc, char** argv) {
 
 
 
-  
+  lehmer64_seed(myrand);
   time_encrypt=0;
   t=TimeStart();
 
@@ -783,45 +1713,55 @@ int main(int argc, char** argv) {
   case 4: 
     for(i=0;i<nb_test;i++)
     {
+      if(cbcprng)
+	encrypt_cbc_prng<4>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
       if(cbc)
-	encrypt_cbc<4>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      else
+	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);
     }
     break;
   case 8: 
     for(i=0;i<nb_test;i++)
     {
+      if(cbcprng)
+	encrypt_cbc_prng<8>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
       if(cbc)
-	encrypt_cbc<8>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      else
+	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);
     }
     break;
   case 16: 
     for(i=0;i<nb_test;i++)
     {
+      if(cbcprng)
+	encrypt_cbc_prng<16>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
       if(cbc)
-	encrypt_cbc<16>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      else
+	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);
     }
     break;
   case 32: 
     for(i=0;i<nb_test;i++)
     {
+      if(cbcprng)
+	encrypt_cbc_prng<32>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
       if(cbc)
-	encrypt_cbc<32>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      else
+	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);
     }
     break;
   case 64: 
     for(i=0;i<nb_test;i++)
     {
+      if(cbcprng)
+	encrypt_cbc_prng<64>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
       if(cbc)
-	encrypt_cbc<64>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      else
+	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);
       
     }
@@ -829,11 +1769,25 @@ int main(int argc, char** argv) {
   case 128: 
     for(i=0;i<nb_test;i++)
     {
+      if(cbcprng)
+	encrypt_cbc_prng<128>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
       if(cbc)
-	encrypt_cbc<128>(seq, seq2,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,myrand,0);
-      else
+	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);
       
+    }
+    break;
+  case 256: 
+    for(i=0;i<nb_test;i++)
+    {
+      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);
+      
     }
     break;
   }
@@ -852,58 +1806,78 @@ int main(int argc, char** argv) {
   }
 
   
-
+  lehmer64_seed(myrand);
   time_decrypt=0;
   t=TimeStart();
   switch(h) {
   case 4:
     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<4>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      else
+	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);
     }
     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<8>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      else
+	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);
     }
     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<16>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      else
+	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);
     }
     break;
   case 32:
     for(i=0;i<nb_test;i++) {
       if(cbc)
-	decrypt_cbc<32>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
+	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);
     }
     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<64>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      else
+	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);
     }
     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<128>(seq2,seq,len,RM,Pbox,PboxSRM,Sbox1,Sbox2,Inv_Sbox1,Inv_Sbox2,myrand,0);
-      else
+	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);
     }
     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);
+    }
+    break;
   }
 
   time_decrypt+=TimeStop(t);
diff --git a/OneRoundIoT/OneRound/one_round_hash.cpp b/OneRoundIoT/OneRound/one_round_hash.cpp
index 2688609..9733449 100644
--- a/OneRoundIoT/OneRound/one_round_hash.cpp
+++ b/OneRoundIoT/OneRound/one_round_hash.cpp
@@ -128,7 +128,7 @@ 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];
diff --git a/OneRoundIoT/OneRound/one_round_new.cpp b/OneRoundIoT/OneRound/one_round_new.cpp
index 5022573..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];
-- 
2.39.5