%0 Journal Article %T 移动社交网络中可保护隐私的可信社交关系相似度检测协议<br>A Privacy-Preserving and Trusted Social Relationship Similarity Detection Protocol in Mobile Social Networks %A 崔炜荣 %A 杜承烈 %J 西北工业大学学报 %D 2017 %X 在移动社交网络中,陌生用户之间可通过检测是否具有共同朋友来对彼此的社交相似度进行评估,从而决定是否建立新的社交关系。在此过程中,如何保护用户隐私并防止用户伪造朋友关系,是确保检测可行可信的关键问题。为此,提出了一种使用身份加密技术的共同朋友检测方法。该方法设计了一种新的朋友关系证据,可以建立证据颁发者和证据拥有者的一一对应关系。基于这种朋友关系证据,设计了可保护用户隐私的可信共同朋友关系检测协议。通过理论分析和仿真实验,验证了该方法的安全性和效率。<br>In mobile social networks, unfamiliar users can decide whether to establish new social relationships between each other by examining whether they have common friends. The biggest challenge during this process is how to protect the users' privacy and prevent users from forging friend relationships. In order to address this challenge, a common friends detection method based on identity-based encryption technology is presented in this paper. In our method, a new evidence of friend relationship is designed, which can establishes a one-to-one relationship between the issuer of evidence and the owner of evidence. Based on the evidence, a privacy-preserving and trusted common friends detection protocol is designed. We provide thorough security analysis and performance evaluation on our scheme %K 移动社交网络 %K 社交相似度 %K 共同朋友检测 %K 隐私保护< %K br> %K mobile social networks %K social relationship similarity %K common friends %K privacy preserving %K computational efficiency %U http://journals.nwpu.edu.cn/xbgydxxb/CN/abstract/abstract6826.shtml