Information flow control in multithread applications based on access control lists |
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Affiliation: | 1. Department of Diagnostic and Interventional Radiology, Eberhard Karls University Tuebingen, University Hospital Tuebingen, 72076 Tuebingen, Germany;2. Department of Urology, Eberhard Karls University Tuebingen, University Hospital Tuebingen, 72076, Tuebingen, Germany;3. Siemens Healthcare GmbH, Erlangen, Germany |
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Abstract: | Information flow control models prevent information leakage during the execution of an application. We developed a model OORBAC to control information flows in object-oriented systems. Soon after the development of OORBAC, we identified that the model cannot solve the problems induced by multithreaded applications. We thus adapted the concepts of OORBAC to develop a new information flow control model. It offers the features of OORBAC and solves the problems induced by multithread object-oriented applications. The new model is named MtACL (information flow control model for multithreaded object-oriented applications based on access control lists). The multithreaded problems solved by MtACL include the shared memory problem, the non-interference problem, and the combination leakage problem. This paper presents MtACL and proves that the model solves the multithreaded problems. |
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