//the proposed hash function, which is based on DSD structure. Sensitivity is ensured by employing the binary diffusion
-void hash_DSD_BIN(uchar* seq_in, uchar* RM1,int len, uchar *S, int h) {
+void hash_DSD_BIN(uint64_t * ss, uint64_t* rm,int len,int h) {
- // Goal: Calculate the hash value
- // Output: RM (hash value)
- //uchar X[h];
- //uint64_t rm2[h>>8];
int ind1=0;
- uint64_t *rm=(uint64_t*)RM1;
- // uint64_t *xx=(uint64_t*)X;
- uint64_t *ss=(uint64_t*)seq_in;
int a=0;
for(int it=0;it<len;it++) {
- // Mix with dynamic RM
rm[0]=rm[h-1]^ss[ind1];
rm[0]=xorshift64(rm[0] );
for(a=1;a<h;a++) {
rm[a]=rm[a-1]^ss[ind1+a];
rm[a]=xorshift64(rm[a]);
}
- // printf("argh %d\n",a);
- //rm[0]=xorshift64(rm[a-1]);
-
ind1+=h;
}
time=0;
+ uint64_t *rm=(uint64_t*)RM1;
+ uint64_t *ss=(uint64_t*)seq;
+
+
+
t=TimeStart();
for(int i=0;i<nb_test;i++)
{
- hash_DSD_BIN(seq, RM1,len,Sbox1,h>>3);
+ hash_DSD_BIN(ss, rm,len,h>>3);
}