integer <> binary

gistfile1.cpp

#include "emp-sh2pc/emp-sh2pc.h"
using namespace emp;
using namespace std;
const string circuit_file_location = macro_xstr(EMP_CIRCUIT_PATH);

int port, party;
string file = circuit_file_location+"/AES-non-expanded.txt";//adder_32bit.txt";
CircuitFile cf(file.c_str());

// test vector
const char *_key = "2b7e151628aed2a6abf7158809cf4f3c";
const char *_pla = "6bc1bee22e409f96e93d7e117393172a";
const char *_cph = "3ad77bb40d7a3660a89ecaf32466ef97";

auto key_bin = hex_to_binary(_key);
auto plain_bin = hex_to_binary(_pla);
auto cipher_bin = hex_to_binary(_cph);

void test() {
  auto start = clock_start();
  Integer a(128, 2, ALICE);
  Integer b(128, 3, BOB);
  Integer ref(128, 0, PUBLIC);

  for (int i = 0; i < 128; i++) {
    a[i] = key_bin[i] == '1';
    b[i] = plain_bin[i] == '1';
    ref[i] = cipher_bin[i] == '1';
  }

  Integer c(128, 1, PUBLIC);

  for(int i = 0; i < 10000; ++i) {
    cf.compute((block*)c.bits, (block*)a.bits, (block*)b.bits);
  }

  cout << time_from(start)<<" "<<party<<" "<<c.reveal<string>(BOB)<<endl;
  cout << "ref " << ref.reveal<string>(PUBLIC) << endl;
}

int main(int argc, char** argv) {
  parse_party_and_port(argv, &party, &port);
  NetIO* io = new NetIO(party==ALICE?nullptr:"127.0.0.1", port);

  setup_semi_honest(io, party);
  test();

  delete io;
}