Abstract:

As the development of wireless network, more and more mobile social networking users publish their geographic locations which contain sensitive geographic location information that may lead their privacy under attack. Most existing privacy protection methods generalize  geographic location at the expense of quality of service, position attackers in LBS service, and they don't take account of the reliability degree among social network friends when location information is provided. To solve this problem, we design a privacy protection model, named Lintimacy, based on social network friends intimacy to prevent friend attackers. Theoretical analysis and experimental results show that comparied with Google Maps which is added to the Latitude services, the proposed algorithm provides privacy protection with less information loss.

Key words: mobile social network;privacy protection;friends intimacy;friend attacker;information loss