A Novel Source-Location Anonymity Protocol in Surveillance Systems

Source-location privacy (SLP) is a critical security property in event-surveillance systems. However, due to the characteristics of surveillance systems, e.g., resource constraints, diverse privacy requirements and large-scale network, the existing anonymity mechanisms cannot effectively deal with the problem of source location privacy protection. This paper proposes the dynamic optimal mix-ring-based source-location anonymity protocol, DORing. In this scheme, we set the optimal mix-ring to collect and mix the network traffic which can satisfy the diverse QoS requirements. The location of mix-ring is adjusted to balance network energy consumption, prolong the lifetime of the network, and resist global attack. The simulation results demonstrate that DORing can significantly prolong survival period of the network and ensure security as well as latency to satisfy the packets´ requirements.