Xiaodong Lin

TL;DR: A new security model is defined and a privacy preserving traffic monitoring scheme is proposed that uses short group signature to authenticate drivers in a conditionally anonymous way, adopt a range query technique to acquire driving information in a privacy-preserving way, and integrate it to the construction of a weighted proximity graph at each fog node through a WiFi challenge handshake to filter out false reports.

TL;DR: This paper presents a new couple-based scheme to detect the node compromise attack in early stage, where after sensor nodes are deployed, they first build couples in ad hoc pattern, and the nodes within the same couple can monitor each other to detect any node compromise attempt.

TL;DR: Numerical results are given to demonstrate the superiority of the proposed scheme in terms of the resultant signalling overhead, power consumption, and authentication latency, compared with the legacy authentication schemes without losing the capability of preserving the system security.

TL;DR: Detailed security analysis demonstrates that the proposed LSR scheme can enhance the security of a privacy-preserving VPNET, such as locally detecting sybil attack, preventing a sybil attacker's future attacks before its being revoked by TA, et al.

TL;DR: By distinguishing between owners and carriers, public key exchange and authentication issues in the decentralized pocket DTN environment can be solved by a two-channel cryptography process and the simulation results have proven it.