public static PolyBase mod(PolyBase a) {
PolyBase rest = a;
while (rest.decomposition.size() >= bigGenLength(rest).decomposition.size()) {
rest = sum(rest, bigGenLength(rest));
clear(rest);
}
return rest;
}
public static PolyBase multiplication(PolyBase a, PolyBase b) {
PolyBase result = new PolyBase();
result.decomposition.setSize(a.decomposition.size() + b.decomposition.size() - 1);
nullToZero(result);
for (int i = 0; i < a.decomposition.size(); i++) {
for (int j = 0; j < b.decomposition.size(); j++) {
if (a.decomposition.get(i) == 1 && b.decomposition.get(j) == 1) {
result.decomposition.set(i + j, result.decomposition.get(i + j) ^ 1);
}
}
}
clear(result);
return mod(result);
}