I have successfully created a mesh network f 6lowpan using contiki-ng. At this point I can send and receive data from the border router and the Node. Now I want to implement the security in my project.
To secure the Network at the link layer contiki-ng has 6TiSch which I have implemented like this
In project configuration file I added this lines..
/* Enable security */ #define LLSEC802154_CONF_ENABLED 1 #define LLSEC802154_CONF_USES_EXPLICIT_KEYS 1
By doing this at this point My border router only join the secured nodes.
Now I changed the keys in this directory os/net/mac/tsch inside the tsch-security the line define as TSCH_SECURITY_K2 and TSCH_SECURITY_K1. There is an array of keys I changed the every keys.
After this I programmed another node with this configuration.At this point this node should not be able to communicate and get connected with the border router But I observed that the communication is happening between two devices which no longer share the same keys.
What is your word of advice am i doing this correctly or I misunderstood something..
