Yi Yang

Beijing University of Aeronautics and Astronautics (Beihang University), Peping, Beijing, China

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Publications (3)0 Total impact

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    ABSTRACT: The task-deployment models of simulation, is mainly used to solve the problem of the unreasonable tasks partition in the simulation of distributed computer network attack and defense exercises. This paper gives a task-deployment model for the simulation of computer network attack and defense exercises through analyzing and formally describing the input, output and the environment of deployment model, constructing the pushdown automaton model of task-deployment - PDAMTD, and validating the termination of the model. This formal validation shows that this model could be computed to the end, and this model prepares for specific algorithms of deployment in theory.
    Information Science and Engineering (ICISE), 2009 1st International Conference on; 01/2010
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    JSEA. 01/2008; 1:76-82.
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    ABSTRACT: This paper presents a new algorithm for generation of attack signatures based on sequence alignment. The algorithm is composed of two parts: a local alignment algorithm—GASBSLA (Generation of Attack Signatures Based on Sequence Local Alignment) and a multi-sequence alignment algorithm—TGMSA (Tri-stage Gradual Multi-Sequence Alignment). With the inspiration of sequence alignment used in Bioinformatics, GASBSLA replaces global alignment and constant weight penalty model by local alignment and affine penalty model to improve the generality of attack signatures. TGMSA presents a new pruning policy to make the algorithm more insensitive to noises in the generation of attack signatures. In this paper, GASBSLA and TGMSA are described in detail and validated by experiments.
    International Conference on Computer Science and Software Engineering, CSSE 2008, Volume 3: Grid Computing / Distributed and Parallel Computing / Information Security, December 12-14, 2008, Wuhan, China; 01/2008