Abstract

Timing-based side-channel attacks are a particularly tricky class of attacks to deal with because the very thing you’re often striving for can give you away. There are always more creative new instances of attacks to be found, so you need a principled way of thinking about defenses that address the class, not just a particular instantiation. That’s what Ge et al. give us in "Time Protection, the Missing OS Abstraction." Just as operating systems prevent spatial inference through memory protection, so future operating systems will need to prevent temporal inference through time protection. It’s going to be a long road to get there. The second paper chosen for this edition comes from NDSS’19 (Network and Distributed System Security Symposium) and studies the physiological and social implications of the ever-improving abilities of voice-imitation software. It seems people may be especially vulnerable to being fooled by fake voices. "The crux of voice (in)security: a brain study of speaker legitimacy detection," by Neupane et al., is a fascinating study with implications far beyond just the technology.

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