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Intel patched it but oof, Unfixed for five months. Are CPUs from other manufacturer's safe, or will we be seeing these types of attacks on AMD/ARM too?
I wonder what Signal will have to say about this. Will they defend the security of their system or move to a new one?
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There is a discussion on Hacker News, but feel free to comment here as well.
Signals new PIN thing relies (almost) entirely on SGX being secure to make their encrypted profile and contact backups secure.
This attack reduces the security of the Signal encrypted backups to just the PIN.
Edit: Indeed the authors point this out explicitly in the SGAxe paper.
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