public override byte[] GetEncoded(bool compressed)
    {
        if (this.IsInfinity)
        {
            return new byte[1];
        }

        ECPoint normed = Normalize();

        byte[] X = normed.XCoord.GetEncoded();

        if (compressed)
        {
            byte[] PO = new byte[X.Length + 1];
            PO[0] = (byte)(normed.CompressionYTilde ? 0x03 : 0x02);
            Array.Copy(X, 0, PO, 1, X.Length);
            return PO;
        }

        byte[] Y = normed.YCoord.GetEncoded();

        {
            byte[] PO = new byte[X.Length + Y.Length + 1];
            PO[0] = 0x04;
            Array.Copy(X, 0, PO, 1, X.Length);
            Array.Copy(Y, 0, PO, X.Length + 1, Y.Length);
            return PO;
        }
    }