2 //g++ -O3 one_round_hash_new.cpp pixmap_io.o -o one_round_hash_new -std=c++11
16 /*#include <cryptopp/hex.h>
17 #include <cryptopp/sha.h>
18 #include <cryptopp/osrng.h>
19 #include <cryptopp/secblock.h>
24 int load_RGB_pixmap(char *filename, int *width, int *height, unsigned char**R_data, unsigned char**G_data, unsigned char**B_data);
25 void store_RGB_pixmap(char *filename, unsigned char *R_data, unsigned char *G_data, unsigned char *B_data, int width, int height);
29 //using namespace CryptoPP;
43 typedef unsigned char uchar;
48 struct timeval tstart;
49 gettimeofday(&tstart,0);
50 return( (double) (tstart.tv_sec + tstart.tv_usec*1e-6) );
53 double TimeStop(double t)
57 gettimeofday(&tend,0);
58 t = (double) (tend.tv_sec + tend.tv_usec*1e-6) - t;
67 void inverse_tables(uchar *tab, int size_tab,uchar *inv_perm_tabs) {
69 for(int i=0;i<size_tab;i++) {
70 inv_perm_tabs[tab[i]] = i;
75 void inverse_tables_int(int *tab, int size_tab,int *inv_perm_tabs) {
77 for(int i=0;i<size_tab;i++) {
78 inv_perm_tabs[tab[i]] = i;
85 void rc4key(uchar *key, uchar *sc, int size_DK) {
87 for(int i=0;i<256;i++) {
93 for(int i0=0; i0<256; i0++) {
94 j0 = (j0 + sc[i0] + key[i0%size_DK] )&0xFF;
103 void rc4keyperm(uchar *key,int len, int rp,int *sc, int size_DK) {
109 for (int i=0;i<len;i++) {
112 for (int it = 0; it < rp; it++) {
114 for(int i0 = 0; i0<len; i0++) {
115 j0 = (j0 + sc[i0] + sc[j0] + key[i0%size_DK] )% len;
124 void prga(uchar *sc, int ldata, uchar *r) {
128 for (int it=0; it<ldata; it++) {
129 i0 = ((i0+1)&0xFE); //%255);
130 j0 = (j0 + sc[i0])&0xFF;
134 r[it]=sc[(sc[i0]+sc[j0])&0xFF];
138 inline uchar circ(uchar x,int n) {return (x << n) | (x >> (8 - n));}
141 //the proposed hash function, which is based on DSD structure. Sensitivity is ensured by employing the binary diffusion
143 void hash_DSD_BIN(uchar* seq_in, uchar* RM1,int len, int *PboxRM, uchar *Sbox1, uchar *Sbox2, int h) {
146 // Goal: Calculate the hash value
147 // Output: RM (hash value)
149 // uchar *X=new uchar[h2];
150 // uchar *fX=new uchar[h2];
158 for(int it=0;it<len;it++) {
162 // Mix with dynamic RM
164 for(int a=0;a<h;a+=4) {
165 X[a]=RM1[a]^seq_in[ind2+a];
166 X[a+1]=RM1[a+1]^seq_in[ind2+a+1];
167 X[a+2]=RM1[a+2]^seq_in[ind2+a+2];
168 X[a+3]=RM1[a+3]^seq_in[ind2+a+3];
171 /* Y[0]=Sbox1[X[0]^X[h-1]];
172 for(int a=1;a<h;a++) {
173 Y[a]=Sbox1[Y[a-1]^X[a-1]];
176 Z[h-1]=Sbox2[Y[h-1]^Y[0]];
177 for(int a=h-1;a>0;a--) {
178 Z[a-1]=Sbox2[Z[a]^Y[a]];
183 for(int a=1;a<h;a++) {
187 for(int a=0;a<h;a+=4) {
193 for(int a=h-1;a>0;a--) {
197 for(int a=0;a<h;a+=4) {
204 for(int a=0;a<h;a+=4) {
211 RM1[a]=Z[a]^RM1[PboxRM[a]];
212 RM1[a+1]=Z[a+1]^RM1[PboxRM[a+1]];
213 RM1[a+2]=Z[a+2]^RM1[PboxRM[a+2]];
214 RM1[a+3]=Z[a+3]^RM1[PboxRM[a+3]];
232 int main(int argc, char** argv) {
241 for(int i=1; i<argc; i++){
242 if(strncmp(argv[i],"nb",2)==0) nb_test = atoi(&(argv[i][2])); //nb of test
243 if(strncmp(argv[i],"ctr",3)==0) ctr = atoi(&(argv[i][3])); //CTR ? 1 otherwise CBC like
244 if(strncmp(argv[i],"h",1)==0) h = atoi(&(argv[i][1])); //size of block
245 if(strncmp(argv[i],"sizebuf",7)==0) size_buf = atoi(&(argv[i][7])); //SIZE of the buffer
246 if(strncmp(argv[i],"lena",4)==0) lena = atoi(&(argv[i][4])); //Use Lena or buffer
247 if(strncmp(argv[i],"c",1)==0) change = atoi(&(argv[i][1])); //Use Lena or buffer
251 cout<<size_buf<<endl;
257 uchar Secretkey[key_size];
259 uchar counter[key_size];
261 for(int i=0;i<key_size;i++) {
262 Secretkey[i]=lrand48()&0xFF;
263 counter[i]=lrand48()&0xFF;
276 uchar *data_R, *data_G, *data_B;
281 load_RGB_pixmap("lena.ppm", &width, &height, &data_R, &data_G, &data_B);
282 imsize=width*height*3;
283 // load_RGB_pixmap("No_ecb_mode_picture.ppm", &width, &height, &data_R, &data_G, &data_B);
287 buffer=new uchar[imsize];
288 for(int i=0;i<imsize;i++) {
296 uchar* seq= new uchar[imsize];
297 uchar* seq2= new uchar[imsize];
302 for(int i=0;i<oneD;i++) {
304 seq[oneD+i]=data_G[i];
305 seq[2*oneD+i]=data_B[i];
310 for(int i=0;i<oneD;i++) {
329 int total_len=imsize;
331 int len= total_len/h;
335 uchar *mix=new uchar[256];
340 for (int i = 0; i < 256 ; i++) {
341 mix[i]=Secretkey[i]^counter[i];
345 // cout<<"hash "<<endl;
346 for (int i = 0; i < 64 ; i++) {
354 int *PboxRM=new int[h];
365 double t=TimeStart();
366 rc4key(DK, Sbox1, 8);
367 rc4key(&DK[8], Sbox2, 8);
369 rc4key(&DK[16], sc, 8);
376 rc4keyperm(&DK[24], h, rp, PboxRM, 8);
379 cout<<"Time initializaton "<<time<<endl;
391 for(int i=0;i<h;i++){
395 cout<<"imsize "<<imsize<<endl;
397 /* for(int i=0;i<imsize;i++){
398 cout<<(int)seq[i]<<" ";
405 for(int i=0;i<nb_test;i++)
407 hash_DSD_BIN(seq, RM1,len,PboxRM,Sbox1,Sbox2,h);
414 cout<<"Hash Time "<<time<<endl;
415 cout<<(double)imsize*nb_test/time<<"\t";
417 for(int i=0;i<h;i++){
418 cout<<(int)RM1[i]<<" ";