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    Abstract:

    In the pervasive computing environment, the users have to provide certain authentication information to the services provider to get the services they need, but the authentication information often contains the privacy which the users do not want to be leaked. In order to protect this privacy, this paper proposed a privacy preserving policy based on rough set theory in authentication for pervasive computing: the users expand the authentication information to a rough set and then provide the rough set to the services provider, the services provider extracts the users’ true authentication information from the rough set according to the pervasive preserving policy and then authenticate the users’ service request. The privacy preserving policy makes use of the uncertainty of rough set and can effectively prevent the leakage of user’s privacy.

    Reference
    1 徐光祐,史元春,谢伟凯.普适计算.计算机学报, 2003,26(9):1042-1050.
    2 吴介,裘正定.普适计算环境中的安全机制.计算机安全, 2005(5):74-84.
    3 苗夺谦,李道国.粗糙集理论、算法与应用.北京:清华大学出版社, 2008:10-30.
    4 Pawlak Z. Rough sets. International Journal of Computer and Information Sciences, 1982,11:341-356.
    5 Pawlak Z, Skowron A. Rough Sets and Conflict Analysis. E-Service Intelligence, Series on Computational Intelligence, Berlin, Heidelberg: Springer-Verlag, 2007:35-74.
    6 Weiser M. The computer for the twenty-first century. Scientific American, 1991,265(3):94-104.
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张燕武,王国军,燕锋.普适计算认证过程基于粗糙集的隐私保护策略.计算机系统应用,2010,19(11):88-91

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History
  • Received:March 02,2010
  • Revised:March 26,2010
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