Abstract:Multilevel cache architectures are widely used in modern heterogeneous systems for performance improvement. However, satisfying the performance and security requirements at the same time is a challenge for such systems. A simple and efficient timing attack on the shared portions of multilevel hierarchical caches and its corresponding countermeasure is proposed here. The proposed attack prolongs the execution time of the victim threads by inducing intentional race conditions in shared memory spaces. Then, a thr… Show more
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