void DataSetup::read(Names& N, bool skip_2, string dir)
{
read_setup(skip_2, dir);
int nn;
string filename = dir + "/Player-FHE-Keys-P" + to_string(N.my_num());
ifstream inpf(filename.c_str());
if (inpf.fail()) { throw file_error(filename); }
inpf >> nn;
if (nn!=N.num_players())
{ cout << "KeyGen was last run with " << nn << " players." << endl;
cout << " - You are running Offline with " << N.num_players() << " players." << endl;
exit(1);
}
/* Load in the public/private keys for this player */
inpf >> pk_p >> sk_p;
inpf >> pk_2 >> sk_2;
/* Load in ciphertexts encrypting the MAC keys */
inpf >> calphap;
inpf >> calpha2;
/* Loads in the players shares of the MAC keys */
inpf >> alphapi;
inpf >> alpha2i;
inpf.close();
cout << "Loaded the public keys etc" << endl;
}
Parallel_MAC_Check<T>::Parallel_MAC_Check(const T& ai, Names& Nms,
int thread_num, int opening_sum, int max_broadcast, int base_player) :
Separate_MAC_Check<T>(ai, Nms, thread_num, opening_sum, max_broadcast, base_player),
send_player(Nms, mc_base_id<T>(2, thread_num)),
send_base_player(base_player)
{
int sum_players = Nms.num_players();
Player* summer_send_player = &send_player;
for (int i = 0; ; i++)
{
int last_sum_players = sum_players;
sum_players = (sum_players - 2 + opening_sum) / opening_sum;
int next_sum_players = (sum_players - 2 + opening_sum) / opening_sum;
if (sum_players == 0)
break;
Player* summer_receive_player = summer_send_player;
summer_send_player = new PlainPlayer(Nms, mc_base_id<T>(3, thread_num));
summers.push_back(new Summer<T>(sum_players, last_sum_players, next_sum_players,
summer_send_player, summer_receive_player, *this));
pthread_create(&(summers[i]->thread), 0, run_summer_thread<T>, summers[i]);
}
receive_player = summer_send_player;
}
void DataSetup::write_setup(const Names& N, bool skip_2)
{
write_setup(get_prep_dir(N.num_players()), skip_2);
}