Recent global events have shown that cybersecurity threats are real, can happen in any geographical region, and can have serious financial repercussions. Arguably, there are three key factors when it comes to IoT connectivity solutions: high performance, no interference, and a secure connection.
The most recognized and ‘traditional’ method of securing online communications within networks has been to use a unique security key that is shared by all devices on a particular network or cell. This method is a mandatory requirement for secure communications, as it isolates the devices from interference from other devices in separate networks, but with more sophisticated security threats becoming prevalent, it may not be enough anymore.
The use of ‘per-link’ security encryption is the answer. This method provides a unique security key between each pair of devices. One compromised device or link cannot spy on any of the other devices belonging to the same network as they use different keys when pairing. The use of per-link security encryption ensures aggregated passwords will not be exposed when used on multiple Wi-Fi hotspots generated by multiple IoT devices.
As a body that champions G.hn, a robust network backbone capable of supporting the IoT with in-built security, the HomeGrid Forum is well placed to discuss the need for per-link security encryption when protecting IoT devices.