public override ECFieldElement Add(ECFieldElement b)
{
uint[] z = Nat128.Create();
SecP128R1Field.Add(x, ((SecP128R1FieldElement)b).x, z);
return(new SecP128R1FieldElement(z));
}
public override ECPoint Twice()
{
if (base.IsInfinity)
{
return(this);
}
ECCurve curve = Curve;
SecP128R1FieldElement secP128R1FieldElement = (SecP128R1FieldElement)base.RawYCoord;
if (secP128R1FieldElement.IsZero)
{
return(curve.Infinity);
}
SecP128R1FieldElement secP128R1FieldElement2 = (SecP128R1FieldElement)base.RawXCoord;
SecP128R1FieldElement secP128R1FieldElement3 = (SecP128R1FieldElement)base.RawZCoords[0];
uint[] array = Nat128.Create();
uint[] array2 = Nat128.Create();
uint[] array3 = Nat128.Create();
SecP128R1Field.Square(secP128R1FieldElement.x, array3);
uint[] array4 = Nat128.Create();
SecP128R1Field.Square(array3, array4);
bool isOne = secP128R1FieldElement3.IsOne;
uint[] array5 = secP128R1FieldElement3.x;
if (!isOne)
{
array5 = array2;
SecP128R1Field.Square(secP128R1FieldElement3.x, array5);
}
SecP128R1Field.Subtract(secP128R1FieldElement2.x, array5, array);
uint[] array6 = array2;
SecP128R1Field.Add(secP128R1FieldElement2.x, array5, array6);
SecP128R1Field.Multiply(array6, array, array6);
uint x = Nat128.AddBothTo(array6, array6, array6);
SecP128R1Field.Reduce32(x, array6);
uint[] array7 = array3;
SecP128R1Field.Multiply(array3, secP128R1FieldElement2.x, array7);
x = Nat.ShiftUpBits(4, array7, 2, 0u);
SecP128R1Field.Reduce32(x, array7);
x = Nat.ShiftUpBits(4, array4, 3, 0u, array);
SecP128R1Field.Reduce32(x, array);
SecP128R1FieldElement secP128R1FieldElement4 = new SecP128R1FieldElement(array4);
SecP128R1Field.Square(array6, secP128R1FieldElement4.x);
SecP128R1Field.Subtract(secP128R1FieldElement4.x, array7, secP128R1FieldElement4.x);
SecP128R1Field.Subtract(secP128R1FieldElement4.x, array7, secP128R1FieldElement4.x);
SecP128R1FieldElement secP128R1FieldElement5 = new SecP128R1FieldElement(array7);
SecP128R1Field.Subtract(array7, secP128R1FieldElement4.x, secP128R1FieldElement5.x);
SecP128R1Field.Multiply(secP128R1FieldElement5.x, array6, secP128R1FieldElement5.x);
SecP128R1Field.Subtract(secP128R1FieldElement5.x, array, secP128R1FieldElement5.x);
SecP128R1FieldElement secP128R1FieldElement6 = new SecP128R1FieldElement(array6);
SecP128R1Field.Twice(secP128R1FieldElement.x, secP128R1FieldElement6.x);
if (!isOne)
{
SecP128R1Field.Multiply(secP128R1FieldElement6.x, secP128R1FieldElement3.x, secP128R1FieldElement6.x);
}
return(new SecP128R1Point(curve, secP128R1FieldElement4, secP128R1FieldElement5, new ECFieldElement[1]
{
secP128R1FieldElement6
}, base.IsCompressed));
}
