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- W4384948650 abstract "Attacks like Spectre abuse speculative execution, one of the key performance optimizations of modern CPUs. Recently, several testing tools have emerged to automatically detect speculative leaks in commercial (black-box) CPUs. However, the testing process is still slow, which has hindered in-depth testing campaigns, and so far prevented the discovery of new classes of leakage.In this paper, we identify the root causes of the performance limitations in existing approaches, and propose techniques to overcome these limitations. With these techniques, we improve the testing speed over the state-of-the-art by up to two orders of magnitude.These improvements enable us to run a testing campaign of unprecedented depth on Intel and AMD CPUs. As a highlight, we discover two types of previously unknown speculative leaks (affecting string comparison and division) that have escaped previous manual and automatic analyses." @default.
- W4384948650 created "2023-07-22" @default.
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- W4384948650 date "2023-05-01" @default.
- W4384948650 modified "2023-10-17" @default.
- W4384948650 title "Hide and Seek with Spectres: Efficient discovery of speculative information leaks with random testing" @default.
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- W4384948650 doi "https://doi.org/10.1109/sp46215.2023.10179391" @default.
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