Implementation and Testing Eavesdropper Protocols Using the Dsp Tool 1 Implementation and Testing Eavesdropper Protocols Using the Dsp Tool 75
نویسنده
چکیده
The Distributed Systems Platform (DSP) is a software platform that has been designed for the implementation, simulation and testing of distributed protocols. It ooers a set of subtools which permit the researcher and the protocol designer to work under a familiar graphical and algorithmic environment. In this work we use the DSP and study the pursuit evasion problem in distributed environments : Members of a team of guards (e.g. antivirus software) traverse the links of the network in pursuit of the fugitive (e.g. worm) which moves along the links of the graph without any other knowledge about the locations of the guards than whatever it can collect as it moves (i.e. the worm is oblivious to dynamic network behaviour). The fugitive's purpose is just to read local information at each node and to stay in the network as long as possible. When a guard meets a fugitive the fugitive is destroyed. We state the problem in detail, compinatorially characterize it and compare various solutions in Spirakis et al. 95], Spirakis, Tampakas 94], Spirakis, Tampakas 98]. The use of the DSP tool gave us considerable input and permitted us to improve and extend the design of our protocols and algorithms, experimentally test them, validate their performance, and investigate the problem considering more practical (and thus more applied) variations.
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تاریخ انتشار 1998