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Security modeling centers on identifying system behavior, including any security defenses; the system adversary's power; and the properties that constitute system security. Once a security model is clearly defined, security analysis evaluates whether the adversary, interacting with the system, can defeat the desired security properties. Although the authors illustrate security analysis using model...
Intuitionistic fuzzy set is a useful tool to express experts' uncertain knowledge and experience information. Most computer security systems have abnormal states and their failure behaviors are always characterized in uncertainty and inaccuracy. How to calculate fault interval of system components is an interesting and important issue in intuitionistic fuzzy fault-tree analysis (IFFTA). Intuitionistic...
To facilitate rational decision making regarding cyber security investments, decision makers need to be able to assess expected losses before and after potential investments. This paper presents a model based assessment framework for analyzing the cyber security provided by different architectural scenarios. The framework uses the Bayesian statistics based extended influence diagrams to express attack...
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