public void AddPoints_SamePointOnCurve_InfResult()
{
EllipticCurve ECC = new EllipticCurve(1, 9, pField: 97, groupOrder: 90);
Point P = new Point(19, 0);
Assert.IsNull(ECC.AddPoints(P, P));
}
public void AddPoints_SamePointOnCurve_CorrectResult()
{
EllipticCurve ECC = new EllipticCurve(1, 9, pField: 97, groupOrder: 90);
Point P = new Point(22, 3);
Point expected = new Point(10, 90);
Point actual = ECC.AddPoints(P, P);
Assert.AreEqual(expected, actual);
}
public void TestAddPointsSwapArg()
{
EllipticCurve curve = new EllipticCurve(a: 1, b: 1, modulus: 23);
Point[] expected = new Point[] {
(0, 1), (6, 19), (3, 13), (13, 16), (18, 3), (7, 11),
(11, 3), (5, 19), (19, 18), (12, 4), (1, 16), (17, 20),
(9, 16), (4, 0), (9, 7), (17, 3), (1, 7), (12, 19),
(19, 5), (5, 4), (11, 20), (7, 12), (18, 20), (13, 7),
(3, 10), (6, 4), (0, 22), null
};
Point p = (0, 1);
Point[] actual = new Point[expected.Length];
actual[0] = p;
for (int i = 1; i < expected.Length; i++)
{
actual[i] = curve.AddPoints(p, actual[i - 1]);
}
CollectionAssert.AreEqual(expected, actual);
}
