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pkeygen.c
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pkeygen.c
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#include <stdio.h>
#include <stdlib.h>
#include <time.h>
#include <math.h>
#include <string.h>
#include <gmp.h>
#include "flint/fmpz_vec.h"
#include "flint/fmpz_poly.h"
#include "flint/fmpz_poly_mat.h"
#include "flint/fmpz.h"
#include "flint/fmpz_mat.h"
#include "libbgv.h"
char str[100000];
void print(pk_node_t *node);
int main(int argc, char *args[])/*setup.txt,sk.txt{row, col, poly}*/
{
FILE *fp;
if((fp = fopen(args[1], "r")) == NULL)
{
printf("file read error\n");
exit(0);
}
fmpz_t t, tmp;
fmpz_init(t);
fmpz_init(tmp);
fgets(str, 100, fp);
fmpz_set_str(t, str, 10);
fgets(str, 100, fp);
fmpz_set_str(tmp, str, 10);
long lev, d, i, j;
lev = fmpz_get_si(tmp);
fgets(str, 100, fp);
fmpz_set_str(tmp, str, 10);
d = fmpz_get_si(tmp);
fmpz_poly_t fx;
fmpz_poly_init(fx);
fmpz_poly_set_coeff_si(fx, 0, 1);
fmpz_poly_set_coeff_si(fx, d, 1);
param_node_t *ph, *pr, *ps, *param, *pam;
ph = param_node_init(ph);
ps = ph;
for( i = 0 ; i <= lev; i++ ) {
pr = param_node_init(pr);
fgets(str, 100, fp);
fmpz_set_str(pr->q, str, 10);
fgets(str, 100, fp);
fmpz_set_str(tmp, str, 10);
pr->n = fmpz_get_si(tmp);
fgets(str, 100, fp);
fmpz_set_str(tmp, str, 10);
pr->bign = fmpz_get_si(tmp);
ps->next = pr;
ps = pr;
}
ps->next = NULL;
fclose(fp);
long row, col;
if((fp = fopen(args[2], "r")) == NULL)
{
printf("file read error\n");
exit(0);
}
long l;
sk_node_t *sh, *ss, *sr;
sh = (sk_node_t *)malloc(sizeof(sk_node_t));
ss = sh;
for(l = 0; l <= lev ; l++){
sr = (sk_node_t *)malloc(sizeof(sk_node_t));
fgets(str, 30, fp);
fmpz_set_str(tmp, str,10);
row = fmpz_get_si(tmp);
fgets(str, 30, fp);
fmpz_set_str(tmp, str,10);
col = fmpz_get_si(tmp);
fmpz_poly_mat_init(sr->sk, row, col);
for( i = 0 ; i < row ; i++) {
for(j = 0; j < col ; j++) {
fgets(str, 100000, fp);
fmpz_poly_set_str(fmpz_poly_mat_entry(sr->sk, i, j), str);
}
}
ss->next = sr;
ss = sr;
}
ss->next = NULL;
fclose(fp);
pk_node_t *pk;
param = ph->next;
pam = param->next;
sh = sh->next;
pk = (pk_node_t *)malloc(sizeof(pk_node_t));
fmpz_poly_mat_init(pk->pkb, 1, 1);
fmpz_poly_mat_zero(pk->pkb);
fmpz_poly_mat_init(pk->pka, param->bign, 1 + (param->n));
e_pkeygen(pk->pka, param, sh->sk, d, t, fx);
print(pk);
free(pk);
ss = sh;
sr = ss->next;
fmpz_poly_mat_t s1, s2, tensor;
long row1, row2, len, llog;
for( i = lev ; i > 0 ; i-- ) {
llog = fmpz_clog(pam->q, t);
pk = (pk_node_t *)malloc(sizeof(pk_node_t));
fmpz_poly_mat_init(pk->pka, pam->bign, 1 + (pam->n));
e_pkeygen(pk->pka, pam, sr->sk, d, t, fx);
row1 = fmpz_poly_mat_nrows(ss->sk);
row2 = row1 * row1;
fmpz_poly_mat_init(tensor, row2, 1);
vec_tensor(tensor, ss->sk, param->q, fx);
len = fmpz_clog(param->q, t);
row2 = row2 * len;
fmpz_poly_mat_init(s1, row2, 1);
fmpz_poly_mat_init(s2, row2, 1);
bitdecomp(s1, tensor, param->q, t, d);
scale(s2, s1, param->q, pam->q, t);
row1 = fmpz_poly_mat_nrows(s2) * llog;
row2 = fmpz_poly_mat_nrows(sr->sk);
fmpz_poly_mat_init(pk->pkb, row1, row2);
switchkeygen(pk->pkb, s2, sr->sk, pam->q, d, t, fx);
fmpz_poly_mat_clear(s1);
fmpz_poly_mat_clear(s2);
fmpz_poly_mat_clear(tensor);
pam = pam->next;
param = param->next;
ss = sr;
sr = sr->next;
print(pk);
free(pk);
}
return 0;
}
void print(pk_node_t *node)
{
long row, col, i, j;
row = fmpz_poly_mat_nrows(node->pka);
col = fmpz_poly_mat_ncols(node->pka);
printf("%ld\n%ld\n", row, col);
char *str;
for( i = 0 ; i < row ; i++ ) {
for( j = 0 ; j < col ; j++ ) {
str = fmpz_poly_get_str(fmpz_poly_mat_entry(node->pka, i, j));
printf("%s\n", str);
}
}
row = fmpz_poly_mat_nrows(node->pkb);
col = fmpz_poly_mat_ncols(node->pkb);
printf("%ld\n%ld\n", row, col);
for( i = 0 ; i < row ; i++ ) {
for( j = 0 ; j < col ; j++ ) {
str = fmpz_poly_get_str(fmpz_poly_mat_entry(node->pkb, i, j));
printf("%s\n", str);
}
}
}