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Barbara Kordy, Mathias Ekstedt, Dong Seong Kim's Graphical Models for Security: Third International Workshop, PDF

Posted On February 24, 2018 at 7:01 am by / Comments Off on Barbara Kordy, Mathias Ekstedt, Dong Seong Kim's Graphical Models for Security: Third International Workshop, PDF

By Barbara Kordy, Mathias Ekstedt, Dong Seong Kim

ISBN-10: 3319462628

ISBN-13: 9783319462622

ISBN-10: 3319462636

ISBN-13: 9783319462639

This e-book constitutes the refereed court cases from the 3rd overseas Workshop on Graphical types for protection, GraMSec 2016, held in Lisbon, Portugal, in June 2016.
The nine papers offered during this quantity have been conscientiously reviewed and chosen from 23 submissions. the amount additionally comprises the invited speak by means of Xinming Ou. GraMSec contributes to the improvement of well-founded graphical safeguard versions, effective algorithms for his or her research, in addition to methodologies for his or her useful utilization.

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Additional info for Graphical Models for Security: Third International Workshop, GraMSec 2016, Lisbon, Portugal, June 27, 2016, Revised Selected Papers

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Our work propose a specification framework for defining CISSA and provide six sample scenarios based on real-world attacks against various IT and IT-enabled systems. We use the samples to analyze the real-world security assessment needs and evaluate three representative modelbased assessment tools accordingly. Ultimately, we hope that our initial efforts Fig. 1. Security assessment process driven by CISSA The Right Tool for the Job: A Case for CISSA 41 will encourage the community to build a rich repository of CISSA for many different systems.

The semantics of overlapping factor can be defined as: r1 = P r[w2 |w1 ] − P r[w2 ] P r[w1 |w2 ] − P r[w1 ] , r2 = P r[w¯2 ] P r[w¯1 ] Let us take r1 as an example to explain the semantics. If we condition on trusting hypothesis h1 , the probability that we also trust h2 is greater than or equal to its absolute probability since shared IDS sensors only give us positive correlation. The bigger the difference, the stronger influence trusting h1 has on trusting h2 . The extreme case is when P r[w2 |w1 ] = 1, which gives r1 = 1.

1. Example of transition system: Se . Definition 2 (Paths, elementary paths, factors). A path in a system S is a sequence of states of the form π = s0 s1 . . sn ∈ S ∗ for some n ∈ N, such that for all k ∈ [0; n − 1], (sk , sk+1 ) ∈→. An elementary path is a path s0 s1 . . e. there is no cycles). We denote by Π(S) the 8 This is classic and it is no loss of generality. On the Soundness of Attack Trees 29 set of paths of S. Let π = s0 . . sn ∈ Π(S). The length of π is n, written |π|. A factor of π is a sequence si .

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Graphical Models for Security: Third International Workshop, GraMSec 2016, Lisbon, Portugal, June 27, 2016, Revised Selected Papers by Barbara Kordy, Mathias Ekstedt, Dong Seong Kim


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