public override ECFieldElement Sqrt()
{
uint[] y = x;
if (Nat.IsZero(12, y) || Nat.IsOne(12, y))
{
return(this);
}
uint[] array = Nat.Create(12);
uint[] array2 = Nat.Create(12);
uint[] array3 = Nat.Create(12);
uint[] array4 = Nat.Create(12);
SecP384R1Field.Square(y, array);
SecP384R1Field.Multiply(array, y, array);
SecP384R1Field.SquareN(array, 2, array2);
SecP384R1Field.Multiply(array2, array, array2);
SecP384R1Field.Square(array2, array2);
SecP384R1Field.Multiply(array2, y, array2);
SecP384R1Field.SquareN(array2, 5, array3);
SecP384R1Field.Multiply(array3, array2, array3);
SecP384R1Field.SquareN(array3, 5, array4);
SecP384R1Field.Multiply(array4, array2, array4);
SecP384R1Field.SquareN(array4, 15, array2);
SecP384R1Field.Multiply(array2, array4, array2);
SecP384R1Field.SquareN(array2, 2, array3);
SecP384R1Field.Multiply(array, array3, array);
SecP384R1Field.SquareN(array3, 28, array3);
SecP384R1Field.Multiply(array2, array3, array2);
SecP384R1Field.SquareN(array2, 60, array3);
SecP384R1Field.Multiply(array3, array2, array3);
uint[] z = array2;
SecP384R1Field.SquareN(array3, 120, z);
SecP384R1Field.Multiply(z, array3, z);
SecP384R1Field.SquareN(z, 15, z);
SecP384R1Field.Multiply(z, array4, z);
SecP384R1Field.SquareN(z, 33, z);
SecP384R1Field.Multiply(z, array, z);
SecP384R1Field.SquareN(z, 64, z);
SecP384R1Field.Multiply(z, y, z);
SecP384R1Field.SquareN(z, 30, array);
SecP384R1Field.Square(array, array2);
if (!Nat.Eq(12, y, array2))
{
return(null);
}
return(new SecP384R1FieldElement(array));
}
public override ECFieldElement Square()
{
uint[] z = Nat.Create(12);
SecP384R1Field.Square(x, z);
return(new SecP384R1FieldElement(z));
}
public override ECPoint Add(ECPoint b)
{
if (base.IsInfinity)
{
return(b);
}
if (b.IsInfinity)
{
return(this);
}
if (this == b)
{
return(Twice());
}
ECCurve curve = Curve;
SecP384R1FieldElement secP384R1FieldElement = (SecP384R1FieldElement)base.RawXCoord;
SecP384R1FieldElement secP384R1FieldElement2 = (SecP384R1FieldElement)base.RawYCoord;
SecP384R1FieldElement secP384R1FieldElement3 = (SecP384R1FieldElement)b.RawXCoord;
SecP384R1FieldElement secP384R1FieldElement4 = (SecP384R1FieldElement)b.RawYCoord;
SecP384R1FieldElement secP384R1FieldElement5 = (SecP384R1FieldElement)base.RawZCoords[0];
SecP384R1FieldElement secP384R1FieldElement6 = (SecP384R1FieldElement)b.RawZCoords[0];
uint[] array = Nat.Create(24);
uint[] array2 = Nat.Create(24);
uint[] array3 = Nat.Create(12);
uint[] array4 = Nat.Create(12);
bool isOne = secP384R1FieldElement5.IsOne;
uint[] array5;
uint[] array6;
if (isOne)
{
array5 = secP384R1FieldElement3.x;
array6 = secP384R1FieldElement4.x;
}
else
{
array6 = array3;
SecP384R1Field.Square(secP384R1FieldElement5.x, array6);
array5 = array2;
SecP384R1Field.Multiply(array6, secP384R1FieldElement3.x, array5);
SecP384R1Field.Multiply(array6, secP384R1FieldElement5.x, array6);
SecP384R1Field.Multiply(array6, secP384R1FieldElement4.x, array6);
}
bool isOne2 = secP384R1FieldElement6.IsOne;
uint[] array7;
uint[] array8;
if (isOne2)
{
array7 = secP384R1FieldElement.x;
array8 = secP384R1FieldElement2.x;
}
else
{
array8 = array4;
SecP384R1Field.Square(secP384R1FieldElement6.x, array8);
array7 = array;
SecP384R1Field.Multiply(array8, secP384R1FieldElement.x, array7);
SecP384R1Field.Multiply(array8, secP384R1FieldElement6.x, array8);
SecP384R1Field.Multiply(array8, secP384R1FieldElement2.x, array8);
}
uint[] array9 = Nat.Create(12);
SecP384R1Field.Subtract(array7, array5, array9);
uint[] array10 = Nat.Create(12);
SecP384R1Field.Subtract(array8, array6, array10);
if (Nat.IsZero(12, array9))
{
if (Nat.IsZero(12, array10))
{
return(Twice());
}
return(curve.Infinity);
}
uint[] array11 = array3;
SecP384R1Field.Square(array9, array11);
uint[] array12 = Nat.Create(12);
SecP384R1Field.Multiply(array11, array9, array12);
uint[] array13 = array3;
SecP384R1Field.Multiply(array11, array7, array13);
SecP384R1Field.Negate(array12, array12);
Nat384.Mul(array8, array12, array);
uint x = Nat.AddBothTo(12, array13, array13, array12);
SecP384R1Field.Reduce32(x, array12);
SecP384R1FieldElement secP384R1FieldElement7 = new SecP384R1FieldElement(array4);
SecP384R1Field.Square(array10, secP384R1FieldElement7.x);
SecP384R1Field.Subtract(secP384R1FieldElement7.x, array12, secP384R1FieldElement7.x);
SecP384R1FieldElement secP384R1FieldElement8 = new SecP384R1FieldElement(array12);
SecP384R1Field.Subtract(array13, secP384R1FieldElement7.x, secP384R1FieldElement8.x);
Nat384.Mul(secP384R1FieldElement8.x, array10, array2);
SecP384R1Field.AddExt(array, array2, array);
SecP384R1Field.Reduce(array, secP384R1FieldElement8.x);
SecP384R1FieldElement secP384R1FieldElement9 = new SecP384R1FieldElement(array9);
if (!isOne)
{
SecP384R1Field.Multiply(secP384R1FieldElement9.x, secP384R1FieldElement5.x, secP384R1FieldElement9.x);
}
if (!isOne2)
{
SecP384R1Field.Multiply(secP384R1FieldElement9.x, secP384R1FieldElement6.x, secP384R1FieldElement9.x);
}
ECFieldElement[] zs = new ECFieldElement[1]
{
secP384R1FieldElement9
};
return(new SecP384R1Point(curve, secP384R1FieldElement7, secP384R1FieldElement8, zs, base.IsCompressed));
}
public override ECPoint Twice()
{
if (base.IsInfinity)
{
return(this);
}
ECCurve curve = Curve;
SecP384R1FieldElement secP384R1FieldElement = (SecP384R1FieldElement)base.RawYCoord;
if (secP384R1FieldElement.IsZero)
{
return(curve.Infinity);
}
SecP384R1FieldElement secP384R1FieldElement2 = (SecP384R1FieldElement)base.RawXCoord;
SecP384R1FieldElement secP384R1FieldElement3 = (SecP384R1FieldElement)base.RawZCoords[0];
uint[] array = Nat.Create(12);
uint[] array2 = Nat.Create(12);
uint[] array3 = Nat.Create(12);
SecP384R1Field.Square(secP384R1FieldElement.x, array3);
uint[] array4 = Nat.Create(12);
SecP384R1Field.Square(array3, array4);
bool isOne = secP384R1FieldElement3.IsOne;
uint[] array5 = secP384R1FieldElement3.x;
if (!isOne)
{
array5 = array2;
SecP384R1Field.Square(secP384R1FieldElement3.x, array5);
}
SecP384R1Field.Subtract(secP384R1FieldElement2.x, array5, array);
uint[] array6 = array2;
SecP384R1Field.Add(secP384R1FieldElement2.x, array5, array6);
SecP384R1Field.Multiply(array6, array, array6);
uint x = Nat.AddBothTo(12, array6, array6, array6);
SecP384R1Field.Reduce32(x, array6);
uint[] array7 = array3;
SecP384R1Field.Multiply(array3, secP384R1FieldElement2.x, array7);
x = Nat.ShiftUpBits(12, array7, 2, 0u);
SecP384R1Field.Reduce32(x, array7);
x = Nat.ShiftUpBits(12, array4, 3, 0u, array);
SecP384R1Field.Reduce32(x, array);
SecP384R1FieldElement secP384R1FieldElement4 = new SecP384R1FieldElement(array4);
SecP384R1Field.Square(array6, secP384R1FieldElement4.x);
SecP384R1Field.Subtract(secP384R1FieldElement4.x, array7, secP384R1FieldElement4.x);
SecP384R1Field.Subtract(secP384R1FieldElement4.x, array7, secP384R1FieldElement4.x);
SecP384R1FieldElement secP384R1FieldElement5 = new SecP384R1FieldElement(array7);
SecP384R1Field.Subtract(array7, secP384R1FieldElement4.x, secP384R1FieldElement5.x);
SecP384R1Field.Multiply(secP384R1FieldElement5.x, array6, secP384R1FieldElement5.x);
SecP384R1Field.Subtract(secP384R1FieldElement5.x, array, secP384R1FieldElement5.x);
SecP384R1FieldElement secP384R1FieldElement6 = new SecP384R1FieldElement(array6);
SecP384R1Field.Twice(secP384R1FieldElement.x, secP384R1FieldElement6.x);
if (!isOne)
{
SecP384R1Field.Multiply(secP384R1FieldElement6.x, secP384R1FieldElement3.x, secP384R1FieldElement6.x);
}
return(new SecP384R1Point(curve, secP384R1FieldElement4, secP384R1FieldElement5, new ECFieldElement[1]
{
secP384R1FieldElement6
}, base.IsCompressed));
}