| protected static initializeState ( string $key ) : array | ||
| $key | string | |
| return | array | |
protected static function initializeState($key)
{
$s = \range(0, 255);
$j = 0;
foreach (\range(0, 255) as $i) {
$j = ($j + $s[$i] + \ord($key[$i % Str::strlen($key)])) % 256;
$x = $s[$i];
$s[$i] = $s[$j];
$s[$j] = $x;
}
return $s;
}