Assistance with sending and receiving a multiple byte integer over Serial1

Using Arduino Programming Questions
10

Tried this:

uint32_t keylisten = 1;

  if (Serial1.available() > 0){
    while (keylisten = 1){
      sendkey((uint32_t)sharedindex);
       if (Serial1.available() >= 4){
        othersharedIndex = othersharedIndex | Serial1.read() << 24;
        othersharedIndex = othersharedIndex | Serial1.read() << 16;
        othersharedIndex = othersharedIndex | Serial1.read() << 8;
        othersharedIndex = othersharedIndex | Serial1.read();
        Serial.println("My partner's Shared Index is:");
        keylisten = 0;
       }
  }
  }

I think my problem is (probably) in the receiving and perhaps what I need is a loop that keeps sending until someone has the answer (at this point I only need it to be able to talk to itself over Serial1)

It didn't work (nothing at all displays in monitor, so its still not getting the 4 bytes to move on to printing the shared index)