Real-time Physical Layer Secure Key Generation in a mmWave Communication System

Physical layer security is one of the trending research areas in tackling data security issues of wireless networks. The main focus of this work is to explore practically the possibilities and performance of secret key generation solutions exploiting wireless channel randomness. This paper describes the implementation of a real-time secure key generation algorithm in a 60 GHz millimetre wave (mmWave) communication system. The performance of the algorithm is evaluated systematically for different parameter combinations to find the optimal parameter values for the system in an indoor static office environment.