Prof. Gerhard Fohler
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Timing Analysis of Secure Communication between Resource Managers in DREAMS

Category: Inproceedings
Author(s)Gautam Gala, Thomas Koller, Daniel Gracia Pérez, Gerhard Fohler, Christoph Ruland
Source1st Workshop on Security and Dependability of Critical Embedded Real-Time Systems in conjunction with RTSS 16.
Date Nov 2016


The European FP7 project DREAMS provides services for system-wide adaptability of mixed-criticality applications consuming several resources by means of a Global Resource Manager (GRM) in combination with several Local Resource Managers (LRMs). The GRM has a abstract system-wide view and makes global decisions, while the LRMs control individual resources in isolation. The LRMs regularly communicate with the GRM in order to deal with unpredictable environment situations, resource fluctuations and the occurrence of faults. Since resource management communication deals with critical system information, it is an promising target for an attacker.This poses an increased risk of malicious attacks on the system. Therefore, security mechanisms have been implemented to ensure an adequate protection of the system’s resource management. Security and communication library have been developed as a proof of concept. This paper analyses the overhead taken by resource management communication for secure information exchange.Furthermore, the analysis includes different security algorithms, i.e., two cipher algorithms and two mode of operation algorithms.


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