35,309 research outputs found

    Measuring the Impact of Spectre and Meltdown

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    The Spectre and Meltdown flaws in modern microprocessors represent a new class of attacks that have been difficult to mitigate. The mitigations that have been proposed have known performance impacts. The reported magnitude of these impacts varies depending on the industry sector and expected workload characteristics. In this paper, we measure the performance impact on several workloads relevant to HPC systems. We show that the impact can be significant on both synthetic and realistic workloads. We also show that the performance penalties are difficult to avoid even in dedicated systems where security is a lesser concern

    Dataset for hardware Trojan detection

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    Nowadays, cloud services rely extensively on the use of virtual machines to enforce security by isolation. However, hardware trojan attacks break this assumption. Within these attacks, cache side-channel attacks such as Spectre and Meltdown are the focus of this work. In this project, we develop a set of tools to generate a dataset; and a dataset that will allow the use of Machine Learning techniques to detect Spectre and Meltdown attacks (i.e. using a cache side-channel). When released, this dataset will enable researchers to compare their ML-based detection proposals based on the same dataset (which is not currently the case). Also, it eliminates the need of an infected computer to generate the attacks and the corresponding dataset for subsequent research studies

    How music became so core to James Bond that someone bet £15,000 on the theme

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