Abstract
The trust in distributed environment is uncertain, which is variation for various factors. This paper introduces TDTM, a model for time-based dynamic trust. Every entity in the distribute environments is endowed with a trust-vector, which figures the trust intensity between this entity and the others. The trust intensity is dynamic due to the time and the inter-operation between two entities, a method is proposed to quantify this change based on the mind of ant colony algorithm and then an algorithm for the transfer of trust relation is also proposed. Furthermore, this paper analyses the influence to the trust intensity among all entities that is aroused by the change of trust intensity between the two entities, and presents an algorithm to resolve the problem. Finally, we show the process of the trusts' change that is aroused by the time's lapse and the inter-operation through an instance.
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Foundation item: Supported by the National Natural Science Foundation of China (60403027), Natural Science Foundation of Hubel Province (2005ABA258) and Open Foundation of State Key Laboratory of Software Engineering (SKLSE05-07)
Biography: TANG Zhuo (1981-), male, Ph. D. candidate, research direction, security for distributed system.
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Zhuo, T., Zhengding, L. & Kai, L. Time-based dynamic trust model using ant colony algorithm. Wuhan Univ. J. Nat. Sci. 11, 1462–1466 (2006). https://doi.org/10.1007/BF02831798
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DOI: https://doi.org/10.1007/BF02831798