2 //g++ -O3 one_round_new.cpp pixmap_io.o -o one_round_new -std=c++11
13 /*#include <cryptopp/hex.h>
14 #include <cryptopp/sha.h>
15 #include <cryptopp/osrng.h>
16 #include <cryptopp/secblock.h>
21 int load_RGB_pixmap(char *filename, int *width, int *height, unsigned char**R_data, unsigned char**G_data, unsigned char**B_data);
22 void store_RGB_pixmap(char *filename, unsigned char *R_data, unsigned char *G_data, unsigned char *B_data, int width, int height);
26 //using namespace CryptoPP;
40 typedef unsigned char uchar;
45 struct timeval tstart;
46 gettimeofday(&tstart,0);
47 return( (double) (tstart.tv_sec + tstart.tv_usec*1e-6) );
50 double TimeStop(double t)
54 gettimeofday(&tend,0);
55 t = (double) (tend.tv_sec + tend.tv_usec*1e-6) - t;
64 void inverse_tables(uchar *tab, int size_tab,uchar *inv_perm_tabs) {
66 for(int i=0;i<size_tab;i++) {
67 inv_perm_tabs[tab[i]] = i;
72 void inverse_tables_int(int *tab, int size_tab,int *inv_perm_tabs) {
74 for(int i=0;i<size_tab;i++) {
75 inv_perm_tabs[tab[i]] = i;
82 void rc4key(uchar *key, uchar *sc, int size_DK) {
84 for(int i=0;i<256;i++) {
90 for(int i0=0; i0<256; i0++) {
91 j0 = (j0 + sc[i0] + key[i0%size_DK] )&0xFF;
100 void rc4keyperm(uchar *key,int len, int rp,int *sc, int size_DK) {
106 for (int i=0;i<len;i++) {
109 for (int it = 0; it < rp; it++) {
111 for(int i0 = 0; i0<len; i0++) {
112 j0 = (j0 + sc[i0] + sc[j0] + key[i0%size_DK] )% len;
121 void prga(uchar *sc, int ldata, uchar *r) {
125 for (int it=0; it<ldata; it++) {
127 j0 = (j0 + sc[i0])&0xFF;
131 r[it]=sc[(sc[i0]+sc[j0])&0xFF];
139 void encrypt_ctr(uchar* seq_in, uchar *seq_out, int len,uchar* RM1,int *Pbox, int *PboxRM, uchar *Sbox1, uchar *Sbox2, int enc) {
142 uchar *X=new uchar[h2];
143 uchar *fX=new uchar[h2];
147 for(int a=0;a<h2;a++) {
152 for(int it=0;it<len;it++) {
164 for(int a=0;a<h2;a+=4){
172 for(int a=0;a<h2;a++)
177 for(int a=0;a<h2;a+=4) {
179 fX[a+1]=fX[a+1]^RM1[a+1];
180 fX[a+2]=fX[a+2]^RM1[a+2];
181 fX[a+3]=fX[a+3]^RM1[a+3];
185 for(int a=0;a<h2;a+=4) {
187 fX[a+1]=Sbox2[fX[a+1]];
188 fX[a+2]=Sbox2[fX[a+2]];
189 fX[a+3]=Sbox2[fX[a+3]];
192 for(int a=0;a<h2;a+=4) {
193 fX[a]=fX[a]^seq_in[ind2+a];
194 fX[a+1]=fX[a+1]^seq_in[ind2+a+1];
195 fX[a+2]=fX[a+2]^seq_in[ind2+a+2];
196 fX[a+3]=fX[a+3]^seq_in[ind2+a+3];
200 for(int a=0;a<h2;a+=4) {
201 seq_out[ind1+a]=fX[a];
202 seq_out[ind1+a+1]=fX[a+1];
203 seq_out[ind1+a+2]=fX[a+2];
204 seq_out[ind1+a+3]=fX[a+3];
207 for(int a=0;a<h2;a+=4) {
208 RM1[a]=RM1[PboxRM[a]];
209 RM1[a+1]=RM1[PboxRM[a+1]];
210 RM1[a+2]=RM1[PboxRM[a+2]];
211 RM1[a+3]=RM1[PboxRM[a+3]];
223 void encrypt(uchar* seq_in, uchar *seq_out, int len,uchar* RM1,int *Pbox, int *PboxRM, uchar *Sbox1, uchar *Sbox2, int debug) {
226 uchar *X=new uchar[h2];
227 uchar *fX=new uchar[h2];
228 unsigned int *lX=(unsigned int*)X;
229 unsigned int *lseq_in=(unsigned int*)seq_in;
232 for(int it=0;it<len;it++) {
234 int ind2=Pbox[it]*h2;
236 for(int a=0;a<h2;a+=4) {
238 X[a+1]=seq_in[ind2+a+1];
239 X[a+2]=seq_in[ind2+a+2];
240 X[a+3]=seq_in[ind2+a+3];
243 for(int a=0;a<h2;a+=4){
245 fX[a+1]=Sbox1[X[a+1]];
246 fX[a+2]=Sbox1[X[a+2]];
247 fX[a+3]=Sbox1[X[a+3]];
251 for(int a=0;a<h2;a+=4) {
253 fX[a+1]=fX[a+1]^RM1[a+1];
254 fX[a+2]=fX[a+2]^RM1[a+2];
255 fX[a+3]=fX[a+3]^RM1[a+3];
259 for(int a=0;a<h2;a+=4) {
260 seq_out[ind1+a]=Sbox2[fX[a]];
261 seq_out[ind1+a+1]=Sbox2[fX[a+1]];
262 seq_out[ind1+a+2]=Sbox2[fX[a+2]];
263 seq_out[ind1+a+3]=Sbox2[fX[a+3]];
266 for(int a=0;a<h2;a+=4) {
267 RM1[a]=RM1[PboxRM[a]];
268 RM1[a+1]=RM1[PboxRM[a+1]];
269 RM1[a+2]=RM1[PboxRM[a+2]];
270 RM1[a+3]=RM1[PboxRM[a+3]];
284 void decrypt(uchar* seq_in, uchar *seq_out, int len,uchar* RM1,int *Pbox, int *PboxRM, uchar *Sbox1, uchar *Sbox2, int debug) {
287 uchar *fX=new uchar[h2];
290 uchar *Inv_Sbox1=new uchar[256];
291 inverse_tables(Sbox1,256,Inv_Sbox1);
293 uchar *Inv_Sbox2=new uchar[256];
294 inverse_tables(Sbox2,256,Inv_Sbox2);
299 for(int it=0;it<len;it++) {
302 int ind2=Pbox[it]*h2;
307 for(int a=0;a<h2;a+=4) {
308 fX[a]=seq_in[ind1+a];
309 fX[a+1]=seq_in[ind1+a+1];
310 fX[a+2]=seq_in[ind1+a+2];
311 fX[a+3]=seq_in[ind1+a+3];
314 for(int a=0;a<h2;a+=4) {
315 fX[a]=Inv_Sbox2[fX[a]];
316 fX[a+1]=Inv_Sbox2[fX[a+1]];
317 fX[a+2]=Inv_Sbox2[fX[a+2]];
318 fX[a+3]=Inv_Sbox2[fX[a+3]];
320 for(int a=0;a<h2;a+=4) {
322 fX[a+1]=fX[a+1]^RM1[a+1];
323 fX[a+2]=fX[a+2]^RM1[a+2];
324 fX[a+3]=fX[a+3]^RM1[a+3];
327 for(int a=0;a<h2;a+=4) {
328 RM1[a]=RM1[PboxRM[a]];
329 RM1[a+1]=RM1[PboxRM[a+1]];
330 RM1[a+2]=RM1[PboxRM[a+2]];
331 RM1[a+3]=RM1[PboxRM[a+3]];
334 for(int a=0;a<h2;a+=4) {
335 seq_out[ind2+a]=Inv_Sbox1[fX[a]];
336 seq_out[ind2+a+1]=Inv_Sbox1[fX[a+1]];
337 seq_out[ind2+a+2]=Inv_Sbox1[fX[a+2]];
338 seq_out[ind2+a+3]=Inv_Sbox1[fX[a+3]];
348 int main(int argc, char** argv) {
351 for(int i=1; i<argc; i++){
352 if(strncmp(argv[i],"nb",2)==0) nb_test = atoi(&(argv[i][2])); //nb of test
353 if(strncmp(argv[i],"ctr",3)==0) ctr = atoi(&(argv[i][3])); //CTR ? 1 otherwise CBC like
354 // if(strncmp(argv[i],"h",1)==0) h = atoi(&(argv[i][1])); //CTR ? 1 otherwise CBC like
357 printf("nb times %d\n",nb_test);
358 printf("ctr %d\n",ctr);
369 uchar Secretkey[key_size];
371 uchar counter[key_size];
373 for(int i=0;i<key_size;i++) {
374 Secretkey[i]=lrand48()&0xFF;
375 counter[i]=lrand48()&0xFF;
387 uchar *data_R, *data_G, *data_B;
388 load_RGB_pixmap("lena.ppm", &width, &height, &data_R, &data_G, &data_B);
389 // load_RGB_pixmap("No_ecb_mode_picture.ppm", &width, &height, &data_R, &data_G, &data_B);
395 int imsize=width*height*3;
396 uchar* seq= new uchar[imsize];
397 uchar* seq2= new uchar[imsize];
399 int oneD=width*height;
400 for(int i=0;i<oneD;i++) {
402 seq[oneD+i]=data_G[i];
403 seq[2*oneD+i]=data_B[i];
410 int total_len=imsize;
412 int len= total_len/h2;
416 uchar *mix=new uchar[256];
421 for (int i = 0; i < 256 ; i++) {
422 mix[i]=Secretkey[i]^counter[i];
427 for (int i = 0; i < 64 ; i++) {
436 rc4key(DK, Sbox1, 16);
439 rc4key(&DK[16], Sbox2, 16);
444 rc4key(&DK[32], sc, 16);
446 uchar outd[2*(h * h)];
447 prga(sc, 2*(h * h), outd);
452 for(int i=0;i<h2;i++){
463 for (int i = 48; i < 64; i++)
467 int *Pbox=new int[len];
468 int *PboxRM=new int[h2];
470 rc4keyperm(keyp, len, rp, Pbox, 16);
472 printf("len %d\n",len);
473 for(int i=0;i<len;i++) {
474 // printf("%d \n",Pbox[i]);
477 rc4keyperm(RM2, h2, rp, PboxRM, h2);
479 for(int i=0;i<h2;i++){
482 int *Inv_Pbox=new int[len];
483 inverse_tables_int(Pbox,len,Inv_Pbox);
487 double t=TimeStart();
490 for(i=0;i<nb_test;i++)
493 encrypt_ctr(seq, seq2,len,RM1,Pbox,PboxRM,Sbox1,Sbox2,1);
495 encrypt(seq, seq2,len,RM1,Pbox,PboxRM,Sbox1,Sbox2,0);
500 cout<<"Time encrypt "<<time<<endl;
503 for(int i=0;i<oneD;i++) {
505 data_G[i]=seq2[oneD+i];
506 data_B[i]=seq2[2*oneD+i];
508 store_RGB_pixmap("lena2.ppm", data_R, data_G, data_B, width, height);
513 for(i=0;i<nb_test;i++) {
515 encrypt_ctr(seq2, seq,len,RM2,Pbox,PboxRM,Sbox1,Sbox2,0);
517 decrypt(seq2,seq,len,RM2,Pbox,PboxRM,Sbox1,Sbox2,0);
522 cout<<"Time decrypt "<<time<<endl;
525 for(int i=0;i<oneD;i++) {
527 data_G[i]=seq[oneD+i];
528 data_B[i]=seq[2*oneD+i];
530 store_RGB_pixmap("lena3.ppm", data_R, data_G, data_B, width, height);