public void ElGamalLongMessageEncryption()
{
var elgamal = new SimpleElGamal(12, 17, 3, 74);
var message = new List <uint> {
13, 7, 22, 43, 56, 64, 8, 1, 12
};
var expected = new List <uint>();
foreach (var value in message)
{
expected.Add(NumericUtilities.SolveModulo(value * elgamal.Key, 1, elgamal.Modulo));
}
var encrypted = elgamal.Encrypt(message);
Assert.IsTrue(expected.SequenceEqual(encrypted));
Assert.IsTrue(message.SequenceEqual(elgamal.Decrypt(encrypted)));
}
public void RSALongMessageEncryption()
{
var rsa = new SimpleRSA(3, 11);
Assert.AreEqual(rsa.Modulo, 33u);
Assert.AreEqual(rsa.PublicKey, 3u);
Assert.AreEqual(rsa.PrivateKey, 7u);
var message = new List <uint> {
1, 5, 31, 14, 8
};
var expected = new List <uint>();
foreach (var value in message)
{
expected.Add(NumericUtilities.SolveModulo(value, rsa.PublicKey, rsa.Modulo));
}
var encrypted = rsa.Encrypt(message);
Assert.IsTrue(expected.SequenceEqual(encrypted));
Assert.IsTrue(message.SequenceEqual(rsa.Decrypt(encrypted)));
}
public void SolveModulo()
{
Assert.AreEqual(NumericUtilities.SolveModulo(2, 4, 5), 1u);
Assert.AreEqual(NumericUtilities.SolveModulo(142, 41, 96), 64u);
Assert.AreEqual(NumericUtilities.SolveModulo(2, 128, 41), 10u);
}
