static void test_large_secret()
{
for (UInt32 i = 0; i < 1000000; ++i)
{
shared_secret ss = new shared_secret(11, 5);
byte[] secret = new byte[32];
using (RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider())
{
rng.GetBytes(secret);
}
List <UInt16[]> share_arrays = ss.make_shares(secret);
byte[] plaintext = ss.get_secret(share_arrays);
if (!check_result(plaintext, secret))
{
throw new Exception("test_large_secret failed");
}
if ((i + 1) % 100000 == 0)
{
Console.WriteLine("{0} iterations", i + 1);
}
}
Console.WriteLine("test_large_secret - success");
}
static void single_byte_test(byte shares, UInt16 required)
{
for (UInt16 i = 0; i < (UInt16)0x100; ++i)
{
shared_secret secret = new shared_secret(shares, required);
UInt16[] share_array = secret.make_shares((byte)i);
UInt16 result = secret.get_secret(share_array);
if (i != result)
{
throw new Exception("single_byte_test failed");
}
}
}
static void random_single_byte_test()
{
byte shares = 126;
UInt16 required = 16;
for (UInt32 i = 0; i < 100000; ++i)
{
// just use i % 256 as the secret
byte secret_value = (byte)(i % 256);
shared_secret secret = new shared_secret(shares, required);
UInt16[] share_array = secret.make_shares(secret_value);
// Put them into a List so that we can pick them out
List <UInt16> tmp_array = new List <UInt16>();
foreach (UInt16 u in share_array)
{
tmp_array.Add(u);
}
// Now need to randomly pick values
UInt16[] random_shares = new UInt16[required];
random_bits bits = new random_bits(required);
for (UInt32 j = 0; j < required; ++j)
{
// Yes, I really only need a byte, but this is test code
UInt16 r = bits.get_word();
Int32 pos = (Int32)(r % tmp_array.Count);
random_shares[j] = tmp_array[pos];
tmp_array.RemoveAt(pos);
}
UInt16 result = secret.get_secret(random_shares);
if (result != secret_value)
{
throw new Exception("random_single_byte_test failed");
}
}
Console.WriteLine("random_single_byte_test - success");
}