Li, KaiEmami, YousefTovar, Eduardo2019-05-102019978-1-4503-6284-9http://hdl.handle.net/10400.22/13718Privacy preservation is critical for control information dissemination in Platoon-based Vehicular Cyber-Physical Systems (PVCPS). However, the vehicular communication is vulnerable to wireless eavesdropping attack and message modification, due to broadcast nature of radio channels. In this poster, we present a secret key generation testbed for PVCPS security, which is built based on off-the-shelf autonomous robotic vehicles and TelosB wireless transceivers. A cooperative secret key agreement (CoopKey) scheme is demonstrated for encrypting/decrypting the disseminated control messages. To unify the secret key generated by the vehicles, CoopKey explores received signal strength (RSS) measurements and channel estimation on the inter-node radio channel. In addition, a Python-based user interface is also implemented to show real-time bit mismatch rate of CoopKey.engVehicular platoonsCyber-Physical SystemsSecret keyTestbedother10.1145/3302506.3312599