C++ (Cpp) esign_priv::verify Examples

Example #1

File: test_esign.C Project: Sidnicious/sfslite

void
test_key_sign (esign_priv &sk)
{
  u_int64_t tmp, tmp2, tmp3;
  bool ret;
  for (int i = 0; i < 50; i++) {
    size_t len = rnd.getword () % 256;
    wmstr wmsg (len);
    rnd.getbytes (wmsg, len);
    str msg1 = wmsg;

    tmp = get_time ();
    bigint m = sk.sign (msg1);
    tmp2 = get_time ();
    ret = sk.verify (msg1, m);
    tmp3 = get_time ();

    vtime += (tmp3 - tmp2);
    signtime += (tmp2 - tmp);

    if (!ret)
      panic << "Verify failed\n"
	    << "  p = " << sk.p << "\n"
	    << "  q = " << sk.q << "\n"
	    << "msg = " << hexdump (msg1.cstr (), msg1.len ()) << "\n"
	    << "sig = " << m << "\n";
    int bitno = rnd.getword () % mpz_sizeinbase2 (&m);
    m.setbit (bitno, !m.getbit (bitno));
    if (sk.verify (msg1, m))
      panic << "Verify should have failed\n"
	    << "  p = " << sk.p << "\n"
	    << "  q = " << sk.q << "\n"
	    << "msg = " << hexdump (msg1.cstr (), msg1.len ()) << "\n"
	    << "sig = " << m << "\n";
  }
}