std::vector<mpair>encrypt(const MDL::Matrix<long>& data,
const FHEPubKey & pk,
const EncryptedArray & ea,
long from = 0,
long to = 0)
{
to = to == 0 ? data.rows() : to;
MDL::Timer timer;
std::vector<mpair> ctxts(to - from, { pk, pk });
std::vector<std::thread> workers;
std::atomic<size_t> counter(from);
timer.start();
for (long wr = 0; wr < WORKER_NR; wr++) {
workers.push_back(std::move(std::thread([&data, &ea, &to, &from,
&counter, &ctxts]() {
size_t next;
while ((next = counter.fetch_add(1)) < to) {
auto vec = covariance(data[next], data[next]).vector();
ctxts[next - from].first.pack(data[next], ea);
ctxts[next - from].second.pack(vec, ea);
}
})));
}
for (auto && wr : workers) wr.join();
timer.end();
printf("Encrypt %ld data with %ld workers costed %f sec\n", to - from,
WORKER_NR, timer.second());
return ctxts;
}
void act_server(int socket) {
FHEcontext context(gM, gP, gR);
buildModChain(context, gL);
FHEPubKey pk(context);
receive_pk(socket, pk);
std::vector<Ctxt> ctxts(gC, pk);
for (long i = 0; i < gC; i++)
pk.Encrypt(ctxts[i], NTL::to_ZZX(i));
send_ctxts(socket, ctxts);
nn_close(socket);
}
void _Tt_signature::
pretty_print(const _Tt_ostream &os) const
{
_Tt_arg_list_cursor argc;
int argn;
int is_osig = _otid.len() > 0;
if (! is_osig) {
switch (_scope) {
case TT_FILE:
os << "file";
break;
case TT_SESSION:
os << "session";
break;
case TT_FILE_IN_SESSION:
os << "file_in_session";
break;
}
}
os << " " << _op << "(";
argc.reset(_args);
argn = _args->count();
while (argc.next()) {
switch (argc->mode()) {
case TT_IN:
os << "in";
break;
case TT_OUT:
os << "out";
break;
case TT_INOUT:
os << "inout";
break;
}
os << " " << argc->type() << " " << argc->name();
if (--argn) {
os << ", ";
}
}
os << ")";
if (_contexts->count() > 0) {
_Tt_context_list_cursor ctxts(_contexts);
os << " context(";
ctxts.next();
os << ctxts->slotName();
while(ctxts.next()) {
os << ", " << ctxts->slotName();
}
os << ")";
}
if (is_osig) {
os << " => " << _ptid << " ";
switch (_scope) {
case TT_FILE:
os << "file";
break;
case TT_SESSION:
os << "session";
break;
case TT_FILE_IN_SESSION:
os << "file_in_session";
break;
}
} else {
if ( (_reliability&TT_START) || (_reliability&TT_QUEUE)
|| (_opnum != -1))
{
// We are psig and have right hand side, so need =>
os << " =>";
}
}
if (_reliability & TT_START) {
os << " start";
}
if (_reliability & TT_QUEUE) {
os << " queue";
}
if (_opnum != -1) {
os << " opnum=" << _opnum;
}
if (is_osig && _super_otid.len()) {
os << " from " << _super_otid;
}
os << ";\n";
}