Abstract: In this paper, we study how the user profile matching is done with privacy-preservation in mobile social networks(MSNs).We propose two techniques for comparison of profile i.e Explicit comparison based profile matching protocol (eCPM) runs between two parties a initiator and a responder. In this method initiator obtain the comparison-based matching result about the specified attributes in their profiles, while preventing their attribute values from disclosure. The profile matching based on implicit comparison protocol (iCPM) allows the initiator to directly obtain some messages instead of the comparison result from the responder.

Keywords: Mobile Social Networks (MSNs), Explicit comparison based profile matching protocol (eCPM), implicit comparison protocol (iCPM).