RSS-based secret key generation in underwater acoustic networks: advantages, challenges, and performance improvements.

Due to the broadcast nature of acoustic channel, underwater acoustic networks (UANs) face threats of eavesdropping and fake data injection. How to secure acoustic communications in a UAN is becoming an important but challenging topic. Among different secret key approaches, received-signal-strength (RSS)-based key generation is particularly appealing, as it can eliminate the need to deploy an addit...