BGN2/bgn2/src/main.cpp

#include <iostream>

#include "BGN.hpp"

int main(void)
{
    BGN system;

    // const PrivateKey sk = system.get_private_key();

    Scalar test0(0);
    Scalar test1(1);
    Scalar test3(3);
    Scalar test5(5);
    Scalar test6(6);
    Scalar test10(10);
    Scalar test15(15);
    Scalar test30(30);

    Scalar decrypted;

    std::cout << "Scalar test value (0): " << test0 << std::endl;
    std::cout << "Scalar test value (1): " << test1 << std::endl;
    std::cout << "Scalar test value (3): " << test3 << std::endl;
    std::cout << "Scalar test value (5): " << test5 << std::endl;

    CurveBipoint encrypted0, encrypted1, encrypted3, encrypted6;
    TwistBipoint encrypted5, encrypted10;
    Quadripoint encrypted15, encrypted30;

    std::cout << "Performing encryptions" << std::endl;

    system.encrypt(encrypted0, test0);
    system.encrypt(encrypted1, test1);
    system.encrypt(encrypted3, test3);
    system.encrypt(encrypted5, test5);

    std::cout << "Performing additions" << std::endl;

    encrypted6 = system.homomorphic_addition(encrypted3, encrypted3);
    encrypted10 = system.homomorphic_addition(encrypted5, encrypted5);

    std::cout << "Performing multiplication" << std::endl;

    encrypted15 = system.homomorphic_multiplication(encrypted3, encrypted5);

    std::cout << "Performing L2 addition" << std::endl;

    encrypted30 = system.homomorphic_addition(encrypted15, encrypted15);

    std::cout << "Performing decryptions" << std::endl;

    decrypted = system.decrypt(encrypted0);
    std::cout << "Decryption of point at infinity (0): ";
    if (decrypted == test0)
        std::cout << "PASS" << std::endl;
    else
        std::cout << "FAIL" << std::endl;
    
    decrypted = system.decrypt(encrypted1);
    std::cout << "Decryption of generator (1):         ";
    if (decrypted == test1)
        std::cout << "PASS" << std::endl;
    else
        std::cout << "FAIL" << std::endl;

    decrypted = system.decrypt(encrypted1);
    std::cout << "Memoization:                         ";
    if (decrypted == test1)
        std::cout << "PASS" << std::endl;
    else
        std::cout << "FAIL" << std::endl;
    
    decrypted = system.decrypt(encrypted3);
    std::cout << "Decryption of normal point in G (3): ";
    if (decrypted == test3)
        std::cout << "PASS" << std::endl;
    else
        std::cout << "FAIL" << std::endl;

    decrypted = system.decrypt(encrypted5);
    std::cout << "Decryption of normal point in H (5): ";
    if (decrypted == test5)
        std::cout << "PASS" << std::endl;
    else
        std::cout << "FAIL" << std::endl;

    decrypted = system.decrypt(encrypted6);
    std::cout << "Addition in G:                       ";
    if (decrypted == test6)
        std::cout << "PASS" << std::endl;
    else
        std::cout << "FAIL" << std::endl;

    decrypted = system.decrypt(encrypted10);
    std::cout << "Addition in H:                       ";
    if (decrypted == test10)
        std::cout << "PASS" << std::endl;
    else
        std::cout << "FAIL" << std::endl;

    decrypted = system.decrypt(encrypted15);
    std::cout << "Multiplication (G by H):             ";
    if (decrypted == test15)
        std::cout << "PASS" << std::endl;
    else
        std::cout << "FAIL" << std::endl;

    decrypted = system.decrypt(encrypted30);
    std::cout << "Addition in G_T:                     ";
    if (decrypted == test30)
        std::cout << "PASS" << std::endl;
    else
        std::cout << "FAIL" << std::endl;

    return 0;
}