title: A game-theoretical approach to multimedia social networks security.
abstract: The contents access and sharing in multimedia social networks (MSNs) mainly rely on access control models and mechanisms. Simple adoptions of security policies in the traditional access control model cannot effectively establish a trust relationship among parties. This paper proposed a novel two-party trust architecture (TPTA) to apply in a generic MSN scenario. According to the architecture, security policies are adopted through game-theoretic analyses and decisions. Based on formalized utilities of security policies and security rules, the choice of security policies in content access is described as a game between the content provider and the content requester. By the game method for the combination of security policies utility and its influences on each party's benefits, the Nash equilibrium is achieved, that is, an optimal and stable combination of security policies, to establish and enhance trust among stakeholders.
authors: University of Science and Technology Beijing, Beijing 100083, China.
authors: Enqiang
authors: E
authors: Liu
authors: University of Science and Technology Beijing, Beijing 100083, China.
authors: Zengliang
authors: Z
authors: Liu
authors: Xidian University, Xi'an 710126, China.
authors: Fei
authors: F
authors: Shao
authors: Information Engineering College, Henan University of Science and Technology, Luoyang 471023, China.
authors: Zhiyong
authors: Z
authors: Zhang
mesh_terms: D000465:Algorithms; D016494:Computer Security; D005716:Game Theory; D016247:Information Storage and Retrieval / Q000379:methods*; D020407:Internet / Q000458:organization & administration*; D019212:Multimedia; D060756:Social Networking