2026-02-17 23:59 UTC
@risottobias There's an Ed25519 in the middle of the end-to-end protocol that mitigate the MITM, but the identity element can leak the group key to the server lol
Replies (3)
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@risottobias@toot.risottobias.org 2026-02-18 00:00
@soatok so I can read the juicy, spicy data in a private group. neat.
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@vantiss@social.treehouse.systems 2026-02-18 00:08
@soatok @risottobias for someone like me who is a lot less able to parse some of the technical parts of this, what could someone theoretically do with this attack? I was a lot more able to grasp it than my gf, but when she asked about the takeaway worrisome use cases I wasn't really sure
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@dzwdz@tilde.zone 2026-02-18 00:35
@soatok Any clues as to how that would be done, to someone unfamiliar with the Matrix protocol (but willing to read up)? I'm trying to understand the actual impact here - I don't get why the key exchange resulting in the identity key is bad within the context of Matrix specifically.