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Journal of Information Science and Engineering, Vol. 32 No. 3, pp. 731-746 (May 2016)

RAKA: Revocable Authenticated Key Agreement System for Mobile Social Networks*

Department of Computer Science
National Chiao Tung University
Hsinchu, 300 Taiwan

Mobile social networks (MSNs) provide users with potential indirect relationships such as friends of friends and similar transitive relationships. However, adversaries may be involved in potential relationships, the trustworthiness of the relationships must be ensured. Thus, the disclosure of private information must be well controlled, and users have to be authenticated. In this paper, we propose a revocable authenticated key agreement system (RAKA), which does not require intensive computation for authentication in MSNs. RAKA not only provides a simple rekeying process but also aggregates multiple successive private key update operations into a single rekeying process. The proposed revocation method incurs low communication overhead on mobile devices using a single message broadcast. RAKA is proved to be resilient against malicious attacks.

Keywords: human-computer interaction, factor analysis, citation analysis, co-citation analysis, cluster analysis

Full Text () Retrieve PDF document (201605_12.pdf)

Received November 24, 2014; revised March 10 & May 13, 2015; accepted July 13, 2015.
Communicated by Hung-Min Sun.
* This work was supported in part by Ministry of Science and Technology, Taiwan, under the grants NSC 101- 2221-E-009-031-MY3 and NSC 100-2221-E-009-072-MY3.