Visible to the public Cooperative Key Generation for Data Dissemination in Cyber-Physical Systems

TitleCooperative Key Generation for Data Dissemination in Cyber-Physical Systems
Publication TypeConference Paper
Year of Publication2018
AuthorsLi, Kai, Kurunathan, Harrison, Severino, Ricardo, Tovar, Eduardo
Conference Name2018 ACM/IEEE 9th International Conference on Cyber-Physical Systems (ICCPS)
Date Publishedapr
Keywords2-hop wireless sensor network testbed, communication security, Communication system security, confidentiality, CPS, cps privacy, cryptographic protocols, cyber physical systems, Cyber-physical systems, data dissemination, Experimental Evaluation, fading channels, Human Behavior, human factors, privacy, Protocols, pubcrawl, Quantization (signal), quantized fading channel randomness, radio channels, real-time data dissemination, secret bit mismatch, secret key generation protocol, sensory data, shared randomness, telecommunication security, wireless channels, Wireless communication, wireless fading channel, wireless security, Wireless sensor networks
AbstractSecuring wireless communication is significant for privacy and confidentiality of sensing data in Cyber-Physical Systems (CPS). However, due to broadcast nature of radio channels, disseminating sensory data is vulnerable to eavesdropping and message modification. Generating secret keys by extracting the shared randomness in a wireless fading channel is a promising way to improve the communication security. In this poster, we present a novel secret key generation protocol for securing real-time data dissemination in CPS, where the sensor nodes cooperatively generate a shared key by estimating the quantized fading channel randomness. A 2-hop wireless sensor network testbed is built and preliminary experimental results show that the quantization intervals and distance between the nodes lead to a secret bit mismatch.
Citation Keyli_cooperative_2018