Function Run_Gen_Protocol

FHEOffline/DistKeyGen.cpp:288–539

sk will become the share of the secret key * pk will become the global public key */

 * pk will become the global public key
 */
void Run_Gen_Protocol(FHE_PK& pk,FHE_SK& sk,const Player& P,int num_runs,
                      bool commit)
{
  CODE_LOCATION
  const FHE_Params& params=pk.get_params();

#ifdef VERBOSE_KEYGEN
  double start,stop;
  /***********************
   *       Step 1        *
   ***********************/
  start=clock();
#endif

  // First compute and commit to the challenge value
  vector<unsigned int> e(P.num_players());
  vector<octetStream> Comm_e(P.num_players());
  vector<octetStream> Open_e(P.num_players());
  Commit_To_Challenge(e,Comm_e,Open_e,P,num_runs);

#ifdef VERBOSE_KEYGEN
  cout << "Done Step 1 " << endl;

  stop=clock();
  cout << "\t\tTime = " << (stop-start)/CLOCKS_PER_SEC << " seconds " << endl;
  start=clock();
#endif

  /***********************
   *       Step 2        *
   ***********************/
  vector< vector<octetStream> > seeds(num_runs, vector<octetStream>(P.num_players()));
  vector< vector<octetStream> > Comm_seeds(num_runs,  vector<octetStream>(P.num_players()));
  vector<octetStream> Open_seeds(num_runs);

  vector<PRNG> G(num_runs);
  Commit_To_Seeds(G,seeds,Comm_seeds,Open_seeds,P,num_runs);

#ifdef VERBOSE_KEYGEN
  cout << "Done Step 2 " << endl;

  stop=clock();
  cout << "\t\tTime = " << (stop-start)/CLOCKS_PER_SEC << " seconds " << endl;
  start=clock();
#endif

  /***********************
   *       Step 2.5      *
   ***********************/

  // Generate my random data
  vector<DistKeyGen> keys(num_runs, {params, pk.p()});

  vector< vector<Rq_Element> > a(num_runs, vector<Rq_Element>(P.num_players(),Rq_Element(params.FFTD(), evaluation, evaluation)));


  for (int i = 0; i < num_runs; i++)
    {