Fine-Grained Identification With Real-Time Fairness in Mobile Social Networks
Mutual user identification is a necessary step for establishing trust among users in an unattended Mobile Social Network (MSN). Directly revealing identity information to others who are unknown to the users may result in an unfair situation regarding identity when other parties of the identification process misbehave. Using an on-line Trusted Third Party (TTP) for user identification causes communication and security problems, while a traditional off-line TTP solution generates delay in fair distribution. In this paper, the authors propose a novel fine-grained identification protocol, which provides confidentiality, unlinkability, and real-time fairness without the involvement of TTP.