public void TestIsElementForPointAtInfinity()
{
var algebra = new EllipticCurveAlgebra(EllipticCurveID.Prime256v1);
Assert.That(algebra.IsPotentialElement(algebra.NeutralElement), "point at infinity not accepted by IsPotentialElement!");
Assert.That(!algebra.IsSafeElement(algebra.NeutralElement), "point at infinity accepted by IsSafeElement!");
}
public void TestIsElement()
{
var algebra = new EllipticCurveAlgebra(EllipticCurveID.Prime256v1);
var groupHandle = algebra.Handle;
var ctx = BigNumberContextHandle.Create();
var index = new BigInteger(3);
var point = new ECPoint(groupHandle);
ECPointHandle.Multiply(groupHandle, point.Handle, new BigNumber(index).Handle, ECPointHandle.Null, BigNumberHandle.Null, ctx);
Assert.That(algebra.IsPotentialElement(point), "valid point not accepted by IsPotentialElement!");
Assert.That(algebra.IsSafeElement(point), "valid point not accepted by IsSafeElement!");
}