[OpenWireless Tech] Open Wireless encryption

[Christian Huitema]

Björn Smedman wrote:

> When you connect a new device to your home Wi-Fi router it sends a small
registration message to a server. The registration message contains the 
> MAC address of the device and the IP address of your home router, and the
server stores this association. You can think of this server as sort of a
> DynDNS server, but with a device MAC as the key.

A database linking MAC addresses to their home router address? Think of the
spying tools that track the MAC addresses of passing Wi-Fi devices. If they
can cross check the MAC with an IP address, they are 90% of the way to
correlating the MAC with a user ID. What kind of protection are you building
against such potential abuse?

-- Christian Huitema