This is a great news that Contiki finally released their updated 6lowpan stack with AES encryption and more hardware support. This will definitely help us improve our existing stack. If you are familiar with Contiki you will know that it is designed for general purpose low power and mostly for stationary wireless networks. But we have modified Contiki's routing hysteresis to adapt to dynamic and agile networks. We already have AES-128 CBC encryption enabled with Contiki 2.7 which is based on IEEE 802.15.4 standard.
For your information, we have designed our framework to manage encryption key locally that means the AES network keys are not stored in the cloud. Thus even WigWag does not know about your personal network. Also we have a strategy to prevent against brute force and replay attacks. As the changes we made to Contiki 2.7 are more application (WigWag products) oriented, we could not incorporate those changes to Contiki's codebase.
We are sure that Contiki 3.0 has mesh networking improvements and features which we will incorporate into our stack. One interesting thing is Contiki now supports dual network filtering. We have been pursing this thought for quite sometime and now we have a reference stack which supports that. We will keep you posted as we learn more about it. Something like this will be in our future products too.
More competition for Thread