Brenner
@brenner.eth
TEEs are the same as World’s proof of personhood, but opposite
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Zach
@zd
Proof of Agency
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EmpiricalLagrange - ye/acc
@eulerlagrange.eth
just some degree of verifiability slapped onto execution
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Cassie Heart
@cassie
the degree of verifiability:
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Brenner
@brenner.eth
And ~my~ machine is open source
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Cassie Heart
@cassie
I’m not sure if you're actually in favor of TEEs or not, but I'd encourage you to reconsider — they work for defense in depth, but when they're the basis of security altogether, they're a house of cards, waiting for any one card (and there's many of them) to be plucked.
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Brenner
@brenner.eth
What’s a specific example? Against a steelmanned TEE?
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Cassie Heart
@cassie
I'll just pick all of them. Intel: https://arstechnica.com/information-technology/2022/08/architectural-bug-in-some-intel-cpus-is-more-bad-news-for-sgx-users/ https://www.theregister.com/2024/08/27/intel_root_key_xeons/ (Read the entire article before stopping at Intel's response) https://cubist.dev/blog/intel-sgx-is-broken-again-what-the-downfall-attack-means-for-secure-hardware https://sgx.fail https://www.techradar.com/news/intel-is-patching-a-load-of-serious-software-security-holes AMD: https://www.helpnetsecurity.com/2024/12/11/badram-amd-hack-cve-2024-21944/ https://arxiv.org/abs/2304.14717 https://www.bleepingcomputer.com/news/security/new-cachewarp-amd-cpu-attack-lets-hackers-gain-root-in-linux-vms/ Apple: https://9to5mac.com/2020/08/01/new-unpatchable-exploit-allegedly-found-on-apples-secure-enclave-chip-heres-what-it-could-mean/ https://arstechnica.com/security/2024/03/hackers-can-extract-secret-encryption-keys-from-apples-mac-chips/ 1/2
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