public SecT233FieldElement(BigInteger x)
{
if (x == null || x.SignValue < 0 || x.BitLength > 233)
{
throw new ArgumentException("value invalid for SecT233FieldElement", "x");
}
this.x = SecT233Field.FromBigInteger(x);
}
public override ECFieldElement SquarePow(int pow)
{
if (pow < 1)
{
return(this);
}
ulong[] z = Nat256.Create64();
SecT233Field.SquareN(x, pow, z);
return(new SecT233FieldElement(z));
}
public override ECFieldElement MultiplyPlusProduct(ECFieldElement b, ECFieldElement x, ECFieldElement y)
{
ulong[] ax = this.x, bx = ((SecT233FieldElement)b).x;
ulong[] xx = ((SecT233FieldElement)x).x, yx = ((SecT233FieldElement)y).x;
ulong[] tt = Nat256.CreateExt64();
SecT233Field.MultiplyAddToExt(ax, bx, tt);
SecT233Field.MultiplyAddToExt(xx, yx, tt);
ulong[] z = Nat256.Create64();
SecT233Field.Reduce(tt, z);
return(new SecT233FieldElement(z));
}
public override ECFieldElement Multiply(ECFieldElement b)
{
ulong[] z = Nat256.Create64();
SecT233Field.Multiply(x, ((SecT233FieldElement)b).x, z);
return(new SecT233FieldElement(z));
}
public override ECFieldElement AddOne()
{
ulong[] z = Nat256.Create64();
SecT233Field.AddOne(x, z);
return(new SecT233FieldElement(z));
}