875       // Let's use something a little more secure

   875       // Let's use something a little more secure

   876       $ur = @fopen('/dev/urandom', 'r');

   876       $ur = @fopen('/dev/urandom', 'r');

   877       if ( !$ur )

   877       if ( !$ur )

   878         return $key;

   878         return $key;

   879       $ukey = @fread($ur, $len);

   879       $ukey = @fread($ur, $len);

   880       if ( strlen($ukey) != $len )

   881       if ( strlen($ukey) != $len )

   881         return $key;

   882         return $key;

   883       return $ukey;

   883       return $ukey;

   884     }

   884     }

   885     return $key;

   885     return $key;

   886   }

   886   }

   887   

   887