public void RSANumberEncryptionTest(int encrypted, int publicKey, int commonKey, int message)
{
// private key = -1, we won't need it for encryption!
var rsaKey = new RivestShamirAdleman(-1, publicKey, commonKey);
Assert.AreEqual(new BigInteger(encrypted), rsaKey.Encrypt(message));
}
public void RSANumberDecryptionTest(int message, int privateKey, int commonKey, int encrypted)
{
// public key = -1, we won't need it for decryption!
var rsaKey = new RivestShamirAdleman(privateKey, -1, commonKey);
Assert.AreEqual(new BigInteger(message), rsaKey.Decrypt(encrypted));
}
public void PrimeGenerationTest()
{
Assert.AreEqual(new List <BigInteger> {
2, 3, 5, 7, 11, 13, 17, 19
},
RivestShamirAdleman.GenerateListOfPrimes(20));
}
public void RSATest()
{
var rsaKey = new RivestShamirAdleman();
TestContext.WriteLine(
$"privateKey: {rsaKey.PrivateKey}, publicKey: {rsaKey.PublicKey}, commonKey: {rsaKey.CommonKey}");
var encrypted = rsaKey.Encrypt("topSecret123");
TestContext.WriteLine(encrypted);
Assert.AreEqual("topSecret123", rsaKey.Decrypt(encrypted));
}
// TODO Fix RSA algorithm for longer numbers
// [TestCase(7)]
// [TestCase(8)]
// [TestCase(9)]
// [TestCase(10)]
// [TestCase(20)]
// [TestCase(100)]
public void RSAKeyPairGenerationTest(int messageLength)
{
for (var i = 0; i < 5; i++)
{
var rsaKey = new RivestShamirAdleman();
for (var j = 0; j < 10; j++)
{
var number = BigInteger.Parse(GenerateRandomNumberString(messageLength));
var encrypted = rsaKey.Encrypt(number);
var decrypted = rsaKey.Decrypt(encrypted);
TestContext.WriteLine(
$"privateKey: {rsaKey.PrivateKey}, publicKey: {rsaKey.PublicKey}, commonKey: {rsaKey.CommonKey}");
TestContext.WriteLine($"input: {number}, encrypted: {encrypted}, decrypted: {decrypted}");
Assert.AreEqual(number, decrypted);
}
}
}
public void ModularMultiplicativeInverseTest(string expected, string a, string m)
{
Assert.AreEqual(BigInteger.Parse(expected),
RivestShamirAdleman.ModularMultiplicativeInverse(BigInteger.Parse(a), BigInteger.Parse(m)));
}
public void LeastCommonMultipleTest(string expected, string a, string b)
{
Assert.AreEqual(BigInteger.Parse(expected),
RivestShamirAdleman.LeastCommonMultiple(BigInteger.Parse(a), BigInteger.Parse(b)));
}
public void GreatestCommonDivisorTest(string expected, string a, string b)
{
Assert.AreEqual(BigInteger.Parse(expected),
RivestShamirAdleman.GreatestCommonDivisor(BigInteger.Parse(a), BigInteger.Parse(b)));
}
