I am about 5/6 months into my PhD.

At first I really wanted to look into Bluetooth security, even though my supervisors didnt seem to think it would go anywhere.

i did a lot of reading and drafted up a chapter 1, but since christmas ive hit a brick wall, I feel dispondant about what to do next.

Im thinking of changing my focus into security and privacy in nomadic or context-based computing.

anyone with general advice or studying similar area please respond!

my main problem seems to be finding a problem thatis novel,needsaddressing, andfeasible!!

thanks

alex