int main(void)
{
int min, max, col, col_limit, row, set_col=0;
int chk_num,value,reset,holder;
printf ("Enter the lower limit:");
scanf ("%d",&min);
printf ("Enter the upper limit:");
scanf ("%d",&max);
printf ("Enter the number of columns:");
scanf ("%d",&col);
printf("\n");
chk_num=min;
while(chk_num<max)
{
while(set_col<col && chk_num<max)
{
value=primeNum(chk_num);
if(value>0)
{
printf("\t%d",value);
set_col=set_col+1;
chk_num=chk_num+1;
}
else
{
chk_num=chk_num+1;
}
}
set_col=0;
printf("\n");
}
return 0;
}
int main(int argc, char **argv) {
BIGNUM *p, *q, *pmq, *n, *e, *d, *psi, *pm1, *qm1;
int key_len;
BN_CTX *ctx = BN_CTX_new();
p = BN_new();
q = BN_new();
pmq = BN_new();
n = BN_new();
e = BN_new();
d = BN_new();
psi = BN_new();
pm1 = BN_new();
qm1 = BN_new();
if (argc != 2) {
printf("./keygen [keylen]\n");
return 1;
}
key_len = atoi(argv[1]) / 8;
int length = atoi(argv[1]);
printf("Key length: %d bits\n", length);
uint8_t num[8], num2[8];
primeNum(num, length);
p = BN_bin2bn((const unsigned char *) num,length/8 , NULL);
printf("p = %s !\n", BN_bn2dec(p)) ;
printf("\nGenerated p...\n");
primeNum(num2, length);
q= BN_bin2bn((const unsigned char *) num2, length/8 , NULL);
printf("q = %s !\n", BN_bn2dec(q)) ;
printf("\n Generated q...\n");
BN_mul(n, p, q, ctx);
BN_sub(pm1, p, BN_value_one());
BN_sub(qm1, q, BN_value_one());
BN_mul(psi, pm1, qm1, ctx);
BN_zero(e);
BN_add_word(e, (BN_ULONG) (65539));
BN_mod_inverse(d, e, psi, ctx);
printf("N: ");
BN_print_fp(stdout, n);
printf("\n");
printf("P: ");
BN_print_fp(stdout, p);
printf("\n");
printf("Q: ");
BN_print_fp(stdout, q);
printf("\n");
printf("E: ");
BN_print_fp(stdout, e);
printf("\n");
printf("D: ");
BN_print_fp(stdout, d);
printf("\n");
BN_free(p);
BN_free(q);
BN_free(n);
BN_free(e);
BN_free(d);
BN_free(psi);
BN_free(pm1);
BN_free(qm1);
BN_free(pmq);
BN_CTX_free(ctx);
return 0;
}
