oi.js from PoC||GTFO

oi.js

function millis() {
  return Date.now();
}

function flip_coin() {
  n = 0;
  then = millis() + 1;

  while (millis() <= then) {
    n = !n;
  }

  return n;
}

function get_fair_bit() {
  while (1) {
    a = flip_coin();

    if (a != flip_coin()) {
      return (a);
    }
  }
}

function get_random_byte() {
  n = 0;

  bits = 8;

  while (bits--) {
    n <<= 1;
    n |= get_fair_bit();
  }

  return n;
}

// Use it like this.

report_console = function() {
  while(1) {
    console.log(get_random_byte());
  }
}

report_console();