int mcl_ecpbs_verify(mcl_ecpbs_signature *signature, char *info, char *message,
mcl_ecpbs_parameters *parameters, mcl_ecpbs_pk *pk, mcl_ecpbs_workspace *workspace) {
add(signature->omega, signature->delta, workspace->result);
mcl_ecpbs_mod(workspace->result, parameters->q);
mcl_ecpbs_Fhash(workspace->z, info, parameters);
ecurve_mult2(signature->rho, parameters->g, signature->omega, pk->key,
workspace->alpha);
ecurve_mult2(signature->sigma, parameters->g, signature->delta,
workspace->z, workspace->beta);
mcl_ecpbs_hash_epsilon(workspace->check, workspace->alpha, workspace->beta,
workspace->z, message, parameters);
return mr_compare(workspace->result, workspace->check);
}
double mult_double(int eb,epoint *g)
{
big e1,e2;
int iterations=0;
clock_t start;
double elapsed;
char *mem1;
char *mem2;
epoint *w;
epoint *r1;
epoint *r2;
mem1=(char *)memalloc(2);
mem2=(char *)ecp_memalloc(3);
e1=mirvar_mem(mem1,0);
e2=mirvar_mem(mem1,1);
w=epoint_init_mem(mem2,0);
r1=epoint_init_mem(mem2,1);
r2=epoint_init_mem(mem2,2);
bigbits(eb,e1);
ecurve_mult(e1,g,r1); /* generate a random point on the curve */
bigbits(eb,e2);
ecurve_mult(e2,g,r2); /* generate a random point on the curve */
bigbits(eb,e1);
bigbits(eb,e2);
start=clock();
do {
ecurve_mult2(e1,r1,e2,r2,w);
iterations++;
elapsed=(clock()-start)/(double)CLOCKS_PER_SEC;
} while (elapsed<MIN_TIME || iterations<MIN_ITERS);
elapsed=1000.0*elapsed/iterations;
printf("ED - %8d iterations ",iterations);
printf(" %8.2lf ms per iteration\n",elapsed);
ecp_memkill(mem2,3);
memkill(mem1,2);
return elapsed;
}
ECn mul(const Big& e1,const ECn& p1,const Big& e2,const ECn& p2)
{
ECn t;
ecurve_mult2(e1.getbig(),p1.get_point(),e2.getbig(),p2.get_point(),t.get_point());
return t;
}