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TU Berlin

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Publications Prof. Hartmut Ehrig (TFS)

Transformation of Type Graphs with Inheritance for Ensuring Security in E-Government Networks
Zitatschlüssel EEH09
Autor Ehrig, H. and Ermel, C. and Hermann, F.
Buchtitel Proc. International Conference on Fundamental Aspects of Software Engineering (FASE'09)
Seiten 325-339
Jahr 2009
ISBN 978-3-642-00592-3
Ort York, UK
Jahrgang 5503
Herausgeber Wirsing, M. and Chechik, M.
Verlag Springer
Serie Lecture Notes in Computer Science
Zusammenfassung E-government services usually process large amounts of confidential data, but simultaneously they shall provide simple and userfriendly graphical interfaces. Therefore, security requirements for the communication between components have to be adhered in a very strict way. Hence, it is of main interest that developers can analyze their modularized models of actual systems and that they can detect critical patterns. For this purpose, we present a general and formal framework for critical pattern detection and user-driven correction as well as possibilities for automatic analysis and verification of security requirements on the meta model level. The technique is based on the formal theory of graph transformation, which we extend to transformations of type graphs with inheritance within a type graph hierarchy in order to enable the specification of relevant security requirements in this scenario. The extended theory is shown to fulfil the conditions of a weak adhesive HLR category allowing us to transfer analysis techniques and results shown for this abstract framework of graph transformation. In particular, we discuss how confluence analysis and parallelization can be used to enable distributed critical pattern detection.
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