A Channel State Information-Based Key Generation Scheme for Internet of Things

Internet-of-Things (IoT) networks generally contain resource-constrained devices that require an energy-efficient key generation procedure to producing secure keys at a faster rate. The physical characteristics of the wireless channel can be exploited communication within IoT networks. In particular, secret generated by leveraging on randomness between two communicating parties. conventional mechanism generating layer, i.e., using probing, quantization, information reconciliation, and privacy amplification, may not preferable for devices. addition, in some cases deployed static environments, wherein coherence time is too high generate rate with desired randomness. This study proposes mapping table-based distribution scheme multiple random are combined improve only (KGR) but also agreement (KAR) bit error (BER). proposed scheme, both magnitude phase process. immune estimation errors while providing sufficient environment. Additionally, thoroughly investigated different scenarios including case smarter eavesdropper, which attempts estimate legitimate nodes. verifies robustness settings attack models.