Privacy Enhancement on Unilateral Bluetooth Authentication Protocol for Mobile Crowdsensing

As an open standard for the short-range radio frequency communications, Bluetooth is suitable Mobile Crowdsensing Systems (MCS). However, massive deployment of personal Bluetooth-enabled devices also raises privacy concerns on their wielders. Hence, we investigate unilateral authentication protocol according to recent v5.2. The contributions paper are twofold. (1) We demonstrate that suffers from weakness. That is, attacker able identify target device once he observed device’s previous transmitted messages during run. More importantly, analyze threat MCS, when exploits proposed weakness under typical Internet Things (IoT) scenarios. (2) An improved therefore devised repair Under our formal model, provably solves traceability problem original in standard. Additionally, can be easily adapted standards because it merely employs basic cryptographic components available specifications. In addition, suggest and evaluate two countermeasures, which do not need modify protocol.