Find good parameter for HElib.

SearchGoodParam.cpp

#include "PAlgebra.h"
#include <NTL/ZZ.h>

#include <iostream>

const long MAX_PRIME_BIT = 20;

void search(long m) {
    long p = 2;
    do {
        if ((m % p) != 0) {
            PAlgebra zMStar(m, p);
            /// Best
            if (zMStar.numOfGens() == 1 && zMStar.SameOrd(0))
                std::cout << "Best " << m << " " << p << std::endl;
            /// Somehow ok to use
            else if (zMStar.numOfGens() <= 2)
                std::cout << "Somehow ok " << m << " " << p << std::endl;
        }
        p = NTL::NextPrime(p + 1);
    } while (NTL::NumBits(p) < MAX_PRIME_BIT);
}

int main() {
    search(4096);
}