public SecT163FieldElement(BigInteger x)
{
if (x == null || x.SignValue < 0 || x.BitLength > 163)
throw new ArgumentException("value invalid for SecT163FieldElement", "x");
this.x = SecT163Field.FromBigInteger(x);
}
public override ECFieldElement SquarePow(int pow)
{
if (pow < 1)
return this;
ulong[] z = Nat192.Create64();
SecT163Field.SquareN(x, pow, z);
return new SecT163FieldElement(z);
}
public override ECFieldElement MultiplyPlusProduct(ECFieldElement b, ECFieldElement x, ECFieldElement y)
{
ulong[] ax = this.x, bx = ((SecT163FieldElement)b).x;
ulong[] xx = ((SecT163FieldElement)x).x, yx = ((SecT163FieldElement)y).x;
ulong[] tt = Nat192.CreateExt64();
SecT163Field.MultiplyAddToExt(ax, bx, tt);
SecT163Field.MultiplyAddToExt(xx, yx, tt);
ulong[] z = Nat192.Create64();
SecT163Field.Reduce(tt, z);
return new SecT163FieldElement(z);
}
public override ECFieldElement Multiply(ECFieldElement b)
{
ulong[] z = Nat192.Create64();
SecT163Field.Multiply(x, ((SecT163FieldElement)b).x, z);
return new SecT163FieldElement(z);
}
public override ECFieldElement AddOne()
{
ulong[] z = Nat192.Create64();
SecT163Field.AddOne(x, z);
return new SecT163FieldElement(z);
}
public override ECFieldElement Invert()
{
ulong[] z = Nat192.Create64();
SecT163Field.Invert(x, z);
return new SecT163FieldElement(z);
}
public override int Trace()
{
return (int)SecT163Field.Trace(x);
}
public override ECFieldElement Add(ECFieldElement b)
{
ulong[] z = Nat192.Create64();
SecT163Field.Add(x, ((SecT163FieldElement)b).x, z);
return(new SecT163FieldElement(z));
}
public override ECFieldElement HalfTrace()
{
ulong[] z = Nat192.Create64();
SecT163Field.HalfTrace(x, z);
return(new SecT163FieldElement(z));
}