ABSTRACT

This chapter presents a novel source-location privacy solution, called context-aware location privacy (CALP). The general trend toward source-location privacy protection has been to randomize routing paths in order to reduce the number of packets the adversary is capable of capturing, thus minimizing his chances of tracing back to the source of messages. However, it is well known that sending packets on randomly chosen paths does not necessarily reduce the likelihood of the attacker reaching the source of events. The primary reason is that the data routing process is blind, that is, there is no knowledge of the paths that are being traversed or the location of the attacker.