public void TestMethod1()
{
Elgamal elgamal = new Elgamal();
NumberGenerator ng = new NumberGenerator();
ElgamalDecryptor decryptor = new ElgamalDecryptor();
int[] one = { 1 };
elgamal.P = NumberConverter.IntToBits(547);
elgamal.G = NumberConverter.IntToBits(9);
elgamal.A = NumberConverter.IntToBits(23);
elgamal.M = NumberConverter.IntToBits(100);
elgamal.K = NumberConverter.IntToBits(125);
elgamal.B = elgamal.GenerateB();
Assert.AreEqual("81", NumberConverter.BitsArraystoString(elgamal.B).ToString());
elgamal.Kprim = elgamal.GenerateKprim();
Assert.AreEqual("83", NumberConverter.BitsArraystoString(elgamal.Kprim).ToString());
elgamal.R = elgamal.GenerateR();
Assert.AreEqual("304", NumberConverter.BitsArraystoString(elgamal.R).ToString());
elgamal.S = ng.GetS(elgamal.Kprim, elgamal.M, elgamal.A, elgamal.R, MathOperations.BitsSubstraction(elgamal.P, one));
Assert.AreEqual("172", NumberConverter.BitsArraystoString(elgamal.S).ToString());
Assert.AreEqual("81", NumberConverter.BitsArraystoString(decryptor.GetX2(elgamal)).ToString());
Assert.AreEqual("304", NumberConverter.BitsArraystoString(decryptor.GetBR(elgamal)).ToString());
Assert.AreEqual("182", NumberConverter.BitsArraystoString(decryptor.GetRS(elgamal)).ToString());
Assert.AreEqual("81", NumberConverter.BitsArraystoString(decryptor.GetX1(elgamal, decryptor.GetBR(elgamal), decryptor.GetRS(elgamal))).ToString());
Assert.AreEqual(true, decryptor.IsCorrect(elgamal));
}
public void Equal()
{
Assert.AreEqual(0, MathOperations.HigherThan(NumberConverter.IntToBits(200), NumberConverter.IntToBits(200)));
Assert.AreEqual(0, MathOperations.HigherThan(NumberConverter.IntToBits(231), NumberConverter.IntToBits(231)));
Assert.AreEqual(0, MathOperations.HigherThan(NumberConverter.IntToBits(2500), NumberConverter.IntToBits(2500)));
Assert.AreEqual(0, MathOperations.HigherThan(NumberConverter.IntToBits(12458), NumberConverter.IntToBits(12458)));
}
public void BIsHigher()
{
Assert.AreEqual(-1, MathOperations.HigherThan(NumberConverter.IntToBits(231), NumberConverter.IntToBits(232)));
Assert.AreEqual(-1, MathOperations.HigherThan(NumberConverter.IntToBits(231), NumberConverter.IntToBits(232)));
Assert.AreEqual(-1, MathOperations.HigherThan(NumberConverter.IntToBits(2), NumberConverter.IntToBits(2500)));
Assert.AreEqual(-1, MathOperations.HigherThan(NumberConverter.IntToBits(12458), NumberConverter.IntToBits(2738514)));
}
public void Modulo()
{
Assert.AreEqual(1, NumberConverter.BitsToInt(MathOperations.Modulo(NumberConverter.IntToBits(7), NumberConverter.IntToBits(2))));
Assert.AreEqual(2, NumberConverter.BitsToInt(MathOperations.Modulo(NumberConverter.IntToBits(200), NumberConverter.IntToBits(3))));
Assert.AreEqual(1, NumberConverter.BitsToInt(MathOperations.Modulo(NumberConverter.IntToBits(742), NumberConverter.IntToBits(13))));
Assert.AreEqual(4, NumberConverter.BitsToInt(MathOperations.Modulo(NumberConverter.IntToBits(789), NumberConverter.IntToBits(5))));
Assert.AreEqual(172, NumberConverter.BitsToInt(MathOperations.Modulo(NumberConverter.IntToBits(7888896), NumberConverter.IntToBits(874))));
Assert.AreEqual(21, NumberConverter.BitsToInt(MathOperations.Modulo(NumberConverter.IntToBits(4523106), NumberConverter.IntToBits(1743))));
}
public void IsPrime()
{
int[] tmp = { 1, 0, 1, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 0, 1, 0, 0, 0, 1, 0, 1, 1, 0, 0, 1, 1, 1, 0, 0, 1, 1, 0, 0, 1 };
Array.Reverse(tmp);
Assert.AreEqual(false, NumberGenerator.IsPrime(NumberConverter.IntToBits(18)));
Assert.AreEqual(false, NumberGenerator.IsPrime(NumberConverter.IntToBits(123)));
Assert.AreEqual(true, NumberGenerator.IsPrime(NumberConverter.IntToBits(324239)));
Assert.AreEqual(true, NumberGenerator.IsPrime(NumberConverter.IntToBits(324251)));
Assert.AreEqual(false, NumberGenerator.IsPrime(NumberConverter.IntToBits(324250)));
Assert.AreEqual(true, NumberGenerator.IsPrime(tmp));
}
public void GCD()
{
int[] tmp = { 1, 1, 1, 0, 0, 1, 0, 1, 1, 1, 1, 0, 1, 0, 0, 1, 0, 0, 1, 1, 1, 0, 0, 0, 0, 0, 0, 1, 0, 0, 0, 0, 0, 0, 1, 1, 0 };
Array.Reverse(tmp);
Assert.AreEqual(1, NumberConverter.BitsToInt(MathOperations.GCD(NumberConverter.IntToBits(7), NumberConverter.IntToBits(5))));
Assert.AreEqual(7, NumberConverter.BitsToInt(MathOperations.GCD(NumberConverter.IntToBits(175), NumberConverter.IntToBits(7))));
Assert.AreEqual(7, NumberConverter.BitsToInt(MathOperations.GCD(NumberConverter.IntToBits(7), NumberConverter.IntToBits(175))));
Assert.AreEqual(1, NumberConverter.BitsToInt(MathOperations.GCD(NumberConverter.IntToBits(1236589), NumberConverter.IntToBits(2567))));
Assert.AreEqual(1, NumberConverter.BitsToInt(MathOperations.GCD(NumberConverter.IntToBits(6519413), NumberConverter.IntToBits(122))));
Assert.AreEqual(1, NumberConverter.BitsToInt(MathOperations.GCD(NumberConverter.IntToBits(6519413), NumberConverter.IntToBits(12))));
Assert.AreEqual(9, NumberConverter.BitsToInt(MathOperations.GCD(NumberConverter.IntToBits(123432534), NumberConverter.IntToBits(12123))));
}
public void Multiply()
{
Assert.AreEqual(20, NumberConverter.BitsToInt(MathOperations.BitsMultiplier(NumberConverter.IntToBits(2), NumberConverter.IntToBits(10))));
Assert.AreEqual(200, NumberConverter.BitsToInt(MathOperations.BitsMultiplier(NumberConverter.IntToBits(2), NumberConverter.IntToBits(100))));
Assert.AreEqual(4914, NumberConverter.BitsToInt(MathOperations.BitsMultiplier(NumberConverter.IntToBits(63), NumberConverter.IntToBits(78))));
Assert.AreEqual(978750, NumberConverter.BitsToInt(MathOperations.BitsMultiplier(NumberConverter.IntToBits(1250), NumberConverter.IntToBits(783))));
Assert.AreEqual(1000000, NumberConverter.BitsToInt(MathOperations.BitsMultiplier(NumberConverter.IntToBits(1000), NumberConverter.IntToBits(1000))));
Assert.AreEqual(473859433, NumberConverter.BitsToInt(MathOperations.BitsMultiplier(NumberConverter.IntToBits(5413), NumberConverter.IntToBits(87541))));
}
public void Substract()
{
Assert.AreEqual(2, NumberConverter.BitsToInt(MathOperations.BitsSubstraction(NumberConverter.IntToBits(32), NumberConverter.IntToBits(30))));
Assert.AreEqual(20, NumberConverter.BitsToInt(MathOperations.BitsSubstraction(NumberConverter.IntToBits(84), NumberConverter.IntToBits(64))));
Assert.AreEqual(200, NumberConverter.BitsToInt(MathOperations.BitsSubstraction(NumberConverter.IntToBits(876), NumberConverter.IntToBits(676))));
Assert.AreEqual(123, NumberConverter.BitsToInt(MathOperations.BitsSubstraction(NumberConverter.IntToBits(723), NumberConverter.IntToBits(600))));
Assert.AreEqual(8756, NumberConverter.BitsToInt(MathOperations.BitsSubstraction(NumberConverter.IntToBits(100000), NumberConverter.IntToBits(91244))));
}
public void InversePow()
{
Assert.AreEqual(3, NumberConverter.BitsToInt(MathOperations.InversePow(NumberConverter.IntToBits(5), NumberConverter.IntToBits(7))));
}
public void Addition()
{
Assert.AreEqual(20, NumberConverter.BitsToInt(MathOperations.BitsAddition(NumberConverter.IntToBits(10), NumberConverter.IntToBits(10))));
//Assert.AreEqual(123, NumberConverter.BitsToInt(MathOperations.BitsAddition(NumberConverter.IntToBits(10), NumberConverter.IntToBits(113))));
//Assert.AreEqual(201234, NumberConverter.BitsToInt(MathOperations.BitsAddition(NumberConverter.IntToBits(1789), NumberConverter.IntToBits(199445))));
}