Nonmonotonic trust management for P2P applications


Czenko, Marcin and Tran, Ha and Doumen, Jeroen and Etalle, Sandro and Hartel, Pieter and Hartog, Jerry den (2005) Nonmonotonic trust management for P2P applications. [Report]

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Abstract:Community decisions about access control in virtual communities are non-monotonic in nature. This means that they cannot be expressed in current, monotonic trust management languages such as the family of Role Based Trust Management languages (RT). To solve this problem we propose RTo, which adds a restricted form of negation to the standard RT language, thus admitting a controlled form of non-monotonicity. The semantics of RTo is discussed and presented in terms of the well-founded semantics for Logic Programs. Finally we discuss how chain discovery can be accomplished for RTo.
Item Type:Report
Copyright:© 2005 CTIT
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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