An Improved Secure Message Delivery Protocol Based on Commitment Scheme in VDTNs
Chul Sur, Yougho Park, Kyung-Hyune Rhee · Advanced science and technology letters · 2014
In this paper we present a new secure and privacy-preserving message delivery protocol for protecting receiver location privacy in socialspot based vehicular delay tolerant networks (VDTNs). In particular, we propose an efficient and privacy-preserving message indexing method based on commitment scheme, which enables a receiver vehicle to retrieve messages intended for itself without revealing its identity. The proposed protocol provides stronger security and higher efficiency than previous hash indexing based and pseudonym based secure message delivery approaches, respectively.