MSNS中基于手机通讯录的信任度计算方法

摘要

With the rapid development of mobile social networks, people are increasingly concerned about security issues. Therefore,the research on the users�trust for security in MSNS is very significant. By making full use of phone contacts and improving the existing contacts,this paper presents a trust calculating algorithm according to mobile phone contacts in MSNS. It will be helpful for mobile phone users to reduce threats. This method divides the user trust among the MSNS users into two parts:one is in phone contacts and the other is out of phone contacts. Initially we will rate the trust value for users in the phone contacts,and then we can calculate the trust value of those users who are not in the phone contacts by the recommendation information provided by the trusted users. This method can renew the users�trust value immediately according to the users�different social behavior. Finally,the simulation results show that the trust calculating algorithm is reasonable and effective.%随着手机移动社交的飞速发展，安全问题越来越受到人们的关注。因此，研究用户间的信任度对于移动社交网络的安全具有重要意义。充分利用并改进现有的手机通讯录，提出了移动社交网络中一种基于手机通讯录的信任度计算方法，帮助手机用户减少面临的威胁。该方法将移动社交网络中用户之间的信任度分为直接信任度与间接信任度。初始时对手机通讯录中的联系人进行信任度评分，由可信联系人的推荐信息来计算不在通讯录中联系人的信任度。根据用户在社交活动中不同的社交行为，对通讯录中的联系人信任度进行实时更新。最后，通过仿真实验验证了该方法的合理性与有效性。