X-Git-Url: https://bilbo.iut-bm.univ-fcomte.fr/and/gitweb/Cipher_code.git/blobdiff_plain/2850bb6426a5db0bc65b0b6c32c1e8ab651165f8..f225228275940ffb8cd10ee63028c0063b3e1810:/OneRoundIoT/NEW/scprng.cpp?ds=inline

diff --git a/OneRoundIoT/NEW/scprng.cpp b/OneRoundIoT/NEW/scprng.cpp
index 5f1a3d5..98e27c6 100644
--- a/OneRoundIoT/NEW/scprng.cpp
+++ b/OneRoundIoT/NEW/scprng.cpp
@@ -2,7 +2,7 @@
 #include <stdlib.h>
 #include <stdint.h>
 #include <sys/time.h>
-
+#include<string.h>
 
 typedef unsigned char uchar;
 
@@ -192,23 +192,35 @@ void rc4keyperm(uchar *key,int len, int rp,int *sc, int size_DK) {
   }
 }
 
+#define ROR64(x,r) (((x)>>(r))|((x)<<(64-(r))))
+#define ROL64(x,r) (((x)<<(r))|((x)>>(64-(r))))
+#define R(x,y,k) (x=ROR64(x,18), x+=y, x^=k, y=ROL64(y,13), y^=x)
 
-void scprng(uint64_t *plain, uint64_t* cipher, int bufsize, int nb_bloc, uint64_t *Val, uchar *Sbox1, uchar *Sbox2, int *Pbox, int *Pbox2, uchar *DK, int delta) {
-  int update=0;
 
 
-  for(int nb=0;nb<nb_bloc;nb++) {
+void scprng(uint64_t *plain, uint64_t* cipher, int bufsize, int nb_bloc, uint64_t *Val, uint64_t* Val2,uchar *Sbox1, uchar *Sbox2, uchar * Sbox3, uchar *Sbox4, int *Pbox, int *Pbox2, int *Pbox3, int *Pbox4, uchar *DK, int delta) {
+  int update=0;
+
+  
   
+  for(int nb=0;nb<nb_bloc;nb++) {
+
+    // #pragma omp parallel   
     for(int j=0;j<bufsize;j++) {
       //Val[j]=splitmix64_stateless(Val[j])^Val[Pbox[j]];
       //Val[j]=xorshift64(Val[j])^Val[Pbox[j]];  //fail
-      Val[j]=xorshift64(Val[j])^Val[Pbox[j]]^Val[Pbox2[j]];  
+//      Val[j]=xorshift64(Val[j])^Val[Pbox[j]]^Val[Pbox2[j]];
+
+      Val2[j]=xorshift64(Val[j])^Val[Pbox[j]]^Val[Pbox2[j]];      
       //Val[j]=xoroshiro128plus(&xoro[j])^Val[Pbox[j]];
       //Val[j]=jsf(&ctx[j])^Val[Pbox[j]];  //good
       //Val[j]=sfc(&sfcd[j])^Val[Pbox[j]];  //good
     }
+
+
     
     for(int j=0;j<bufsize;j++) {
+      Val[j]=ROR64(Val2[j],Pbox[j]&63);
       cipher[nb*bufsize+j]=Val[j]^plain[nb*bufsize+j];
     }
   
@@ -217,16 +229,37 @@ void scprng(uint64_t *plain, uint64_t* cipher, int bufsize, int nb_bloc, uint64_
     
     if(update==delta) {
       update=0;
-      uchar *ptr=(uchar*)Val;
+      /*      uchar *ptr=(uchar*)Val;
       for(int j=0;j<bufsize*8;j++)
 	ptr[j]^=Sbox2[Sbox1[ptr[j]+DK[j&63]]];
-      rc4keyperm(ptr, bufsize, 1, Pbox, 64);
-      //only for xorshift
-      rc4keyperm(&ptr[32], bufsize, 1, Pbox2, 64);
-    
+      */
+
+      for(int j=0;j<bufsize;j++) {
+	Val[j]=R(Val[j],Val[Pbox[j]],Val[Pbox2[j]]);
+      }
+
+      /*      
+      for(int j=0;j<256;j++)
+	Sbox1[j]=Sbox3[Sbox1[j]];
+
+      for(int j=0;j<256;j++)
+	Sbox2[j]=Sbox4[Sbox2[j]];
+
+      for(int j=0;j<256;j++)
+	Sbox3[j]=Sbox4[Sbox3[j]];
+      */
+
+      for(int j=0;j<bufsize;j++)
+	Pbox[j]=Pbox3[Pbox[j]];
+
+      for(int j=0;j<bufsize;j++)
+	Pbox2[j]=Pbox4[Pbox2[j]];
+
+      for(int j=0;j<bufsize;j++)
+	Pbox3[j]=Pbox4[Pbox3[j]];
+
+
       
-      rc4key(ptr, Sbox1, 64);
-      rc4key(&ptr[64], Sbox2, 64);
     }
     else
       update++;
@@ -237,19 +270,34 @@ void scprng(uint64_t *plain, uint64_t* cipher, int bufsize, int nb_bloc, uint64_
 }
 
 
-int main() {
-  printf("%d %d \n",sizeof(__uint64_t),sizeof(ulong));
+int main(int argc, char **argv) {
+//  printf("%d %d \n",sizeof(__uint64_t),sizeof(ulong));
 
 
+  uint nb_test=1;
+  
   int width;
   int height;
   uchar *data_R, *data_G, *data_B;
   int imsize;
   uchar *buffer;
 
-  int size_buf=512;
+  int size_buf=128;
+  
+  int lena=0;
+  int h=128;
+  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],"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
+  }
+
+
+
+
+
   
-  int lena=1;
 
    if(lena==1) {
     load_RGB_pixmap("lena.ppm", &width, &height, &data_R, &data_G, &data_B);
@@ -301,48 +349,51 @@ int main() {
 
   uchar Sbox1[256];
   uchar Sbox2[256];
+  uchar Sbox3[256];
+  uchar Sbox4[256];
   rc4key(DK, Sbox1, 8);
   rc4key(&DK[8], Sbox2, 8);
+  rc4key(&DK[16], Sbox3, 8);
+  rc4key(&DK[24], Sbox4, 8);
 
-  const int bufsize=128;
-  int Pbox[bufsize];
-  int Pbox2[bufsize];
-  rc4keyperm(&DK[16], bufsize, 1, Pbox, 16);
-  rc4keyperm(&DK[32], bufsize, 1, Pbox2, 16);
+  int Pbox[h];
+  int Pbox2[h];
+  int Pbox3[h];
+  int Pbox4[h];
+  rc4keyperm(&DK[16], h, 1, Pbox, 16);
+  rc4keyperm(&DK[32], h, 1, Pbox2, 16);
+  rc4keyperm(&DK[8], h, 1, Pbox3, 16);
+  rc4keyperm(&DK[48], h, 1, Pbox4, 16);
 
 
 //  uint64_t plain[bufsize];
 //  uint64_t cipher[bufsize];
   
-  ulong2 xoro[bufsize];
-
-  ranctx ctx[bufsize];
-  sfcctx sfcd[bufsize];
-
   
-  uint64_t Val[bufsize];
-  for(int i=0;i<bufsize;i++) {
+  uint64_t Val[h];
+  uint64_t Val2[h];
+  for(int i=0;i<h;i++) {
     Val[Pbox[i]]=splitmix64_stateless(i+DK[i&63]);
   }
   
   
-  int delta=8;
+  int delta=16;
 
 
   
-  uint nb_test=100;
+
   double t=TimeStart();
   
-  int nb_bloc=imsize/(bufsize*8);  //8 because we use 64bits numbers
+  int nb_bloc=imsize/(h*8);  //8 because we use 64bits numbers
   
 
 
   for(uint iter=0;iter<nb_test;iter++) {
-    scprng(SEQ, SEQ2, bufsize, nb_bloc, Val,Sbox1, Sbox2, Pbox, Pbox2, DK, delta);
+    scprng(SEQ, SEQ2, h, nb_bloc, Val,Val2,Sbox1, Sbox2, Sbox3, Sbox4, Pbox, Pbox2, Pbox3, Pbox4, DK, delta);
   }
 
   double time=TimeStop(t);
-  printf("time %e\n",nb_test*nb_bloc*bufsize*8/time);
+  printf("%e  ",nb_test*nb_bloc*h*8/time);
 
   if(lena) {
     for(int i=0;i<oneD;i++) {
@@ -354,20 +405,35 @@ int main() {
   }
 
 
+
   //reinit of parameters
+
   rc4key(DK, Sbox1, 8);
   rc4key(&DK[8], Sbox2, 8);
+  rc4key(&DK[16], Sbox3, 8);
+  rc4key(&DK[24], Sbox4, 8);
+
+  rc4keyperm(&DK[16], h, 1, Pbox, 16);
+  rc4keyperm(&DK[32], h, 1, Pbox2, 16);
+  rc4keyperm(&DK[8], h, 1, Pbox3, 16);
+  rc4keyperm(&DK[48], h, 1, Pbox4, 16);
 
-  rc4keyperm(&DK[16], bufsize, 1, Pbox, 16);
-  rc4keyperm(&DK[32], bufsize, 1, Pbox2, 16);
-  for(int i=0;i<bufsize;i++) {
+
+  for(int i=0;i<h;i++) {
     Val[Pbox[i]]=splitmix64_stateless(i+DK[i&63]);
   }
 
+  t=TimeStart();
+
+
   for(uint iter=0;iter<nb_test;iter++) {
-    scprng(SEQ2, SEQ, bufsize, nb_bloc, Val,Sbox1, Sbox2, Pbox, Pbox2, DK, delta);
+    scprng(SEQ2, SEQ, h, nb_bloc, Val,Val2,Sbox1, Sbox2, Sbox3, Sbox4, Pbox, Pbox2, Pbox3, Pbox4, DK, delta);
   }
 
+
+  time=TimeStop(t);
+  printf("%e\n",nb_test*nb_bloc*h*8/time);
+  
   if(lena) {
     for(int i=0;i<oneD;i++) {
       data_R[i]=seq[i];