A Secure and Efficient Privacy-Preserving Attribute Matchmaking Protocol in Proximity-Based Mobile Social Networks

Privacy‐preserving and efficient user matching based on attribute encryption in mobile social networks

“…Second, a fully trusted third party in the real sense does not exist, and there is a risk that TTP illegally accesses or leaks the user's private data because of the commercial interest drive or other reasons. [20][21][22] Third, all user attribute information matching calculations are performed on TTP, which may result in performance bottlenecks. Even in the extreme case, if there are too many users requesting at the same time, it can cause the system to crash.…”

“…Although this method makes the smart terminal reduce the computing power to a certain extent, which improves the matching efficiency of users, there are some risks: First, unless the TTP is breached by attackers, the attackers can get all the users' information easily, thus leading to user information leakage. Second, a fully trusted third party in the real sense does not exist, and there is a risk that TTP illegally accesses or leaks the user's private data because of the commercial interest drive or other reasons 20‐22 . Third, all user attribute information matching calculations are performed on TTP, which may result in performance bottlenecks.…”

Privacy-preserving Attribute Matchmaking in Proximity-based Mobile Social Networks

“…This mechanism can provide efficient matchmaking services with relatively high scalability. In [12,17,19,26,36], are the protocols based on hybrid mechanisms designed to support privacy preserving attributes matchmaking functions for MSN.…”

“…Privacy-preserving scalar computation of ab was used in [36] to find the number of common attributes two persons have before they are match-paired. In this protocol, the TA has n number of attributes and each person in the protocol forms a binary vector of …”

“…As a result, the research community has proposed symmetric matchmaking protocols. In these protocols, the parties involved in the protocol obtain the intersection mutually [10,12,23,36].…”