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Files from Christopher W. Fletcher

GoFetch: Breaking Constant-Time Cryptographic Implementations Using Data Memory-Dependent Prefetchers

Posted Mar 22, 2024

Authored by Daniel Genkin, David Kohlbrenner, Christopher W. Fletcher, Boru Chen, Pradyumna Shome, Yingchen Wang, Riccardo Paccagnella | Site gofetch.fail

This whitepaper shows that the security threat from DMPs is significantly worse than previously thought and demonstrates the first end-to-end attacks on security-critical software using the Apple m-series DMP. Undergirding the author's attacks is a new understanding of how DMPs behave which shows, among other things, that the Apple DMP will activate on behalf of any victim program and attempt to leak any cached data that resembles a pointer.

tags | paper

systems | apple

SHA-256 | a26af7248f3a7458c6db704eb23699f3163f79dcf78ceedd895d0097eb93941b

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