public static bool IsValid(IntBig x, IntBig y, IntBig a4, IntBig a6, IntBig modulo)
{
MIntBig my = new MIntBig(y, modulo);
MIntBig mx = new MIntBig(x, modulo);
MIntBig ma4 = new MIntBig(a4, modulo);
MIntBig ma6 = new MIntBig(a6, modulo);
MIntBig my2 = my * my;
MIntBig mx2 = mx * mx * mx + ma4 * mx + ma6;
return(my2 == mx2);
}
public static bool IsValid(IntBig x, IntBig y, IntBig z, IntBig a4, IntBig a6, IntBig modulo)
{
MIntBig my = new MIntBig(y, modulo);
MIntBig mx = new MIntBig(x, modulo);
MIntBig mz = new MIntBig(z, modulo);
MIntBig ma4 = new MIntBig(a4, modulo);
MIntBig ma6 = new MIntBig(a6, modulo);
MIntBig mz2 = mz * mz;
MIntBig mz4 = mz2 * mz2;
MIntBig mz6 = mz4 * mz2;
MIntBig my2 = my * my;
MIntBig mx2 = mx * mx * mx + ma4 * mx * mz4 + ma6 * mz6;
return(my2 == mx2);
}