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This paper presents the first results from the ongoing research project HASPOC, developing a high assurance virtualization platform for the ARMv8 CPU architecture. Formal verification at machine code level guarantees information isolation between different guest systems (e.g. OSs) running on the platform. To use the platform in networking scenarios, we allow guest systems to securely communicate with...
Caches pose a significant challenge to formal proofs of security for code executing on application processors, as the cache access pattern of security-critical services may leak secret information. This paper reveals a novel attack vector, exposing a low-noise cache storage channel that can be exploited by adapting well-known timing channel analysis techniques. The vector can also be used to attack...
In recent years, deductive program verification has improved to a degree that makes it feasible for real-world programs. Following this observation, the main goal of the BMBF-supported Verisoft XT project is (a) the creation of methods and tools which allow the pervasive formal verification of integrated computer systems, and (b) the prototypical realization of four concrete, industrial application...
A system-of-systems (SoS) is inherently open in configuration and evolutionary in lifecycle. For the next generation of cooperative cyber-physical system-of-systems, safety and security constitute two key issues of public concern that affect the deployment and acceptance. In engineering, the openness and evolutionary nature also entail radical paradigm shifts. This paper presents one novel approach...
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