public void TestSumOfTwoMultiplies()
{
foreach (X9ECParameters x9 in GetTestCurves())
{
ECPoint p = GetRandomPoint(x9);
BigInteger a = GetRandomScalar(x9);
for (int i = 0; i < SCALE; ++i)
{
ECPoint q = GetRandomPoint(x9);
BigInteger b = GetRandomScalar(x9);
ECPoint u = p.Multiply(a).Add(q.Multiply(b));
ECPoint v = ECAlgorithms.ShamirsTrick(p, a, q, b);
ECPoint w = ECAlgorithms.SumOfTwoMultiplies(p, a, q, b);
ECPoint[] results = new ECPoint[] { u, v, w };
x9.Curve.NormalizeAll(results);
AssertPointsEqual("ECAlgorithms.ShamirsTrick is incorrect", results[0], results[1]);
AssertPointsEqual("ECAlgorithms.SumOfTwoMultiplies is incorrect", results[0], results[2]);
p = q;
a = b;
}
}
}
