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submitted 9 months ago by BrikoX@lemmy.zip to c/technology@lemmy.zip

Voting system required three keys. One of them has been “irretrievably lost.”

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[-] observantTrapezium@lemmy.ca 9 points 9 months ago

3 is just a small number in this context, you can prevent a conspiracy (of 2), or have a redundancy (of 1), but not at the same time. They choose wrong... It's always a risk when something hinges on a single human individual.

[-] logi@piefed.world 5 points 9 months ago* (last edited 9 months ago)

That's actually not true. See the other comment about Shamir Secret Sharing. Very clever stuff where you can split a key in m parts and require n<m of the pieces to get it back.

[-] observantTrapezium@lemmy.ca 3 points 9 months ago

But with SSS and m=3, n can only be 1, 2 or 3. If n=2 there is a possibility for a conspiracy of 2 and a redundancy of 1, if n=3 then all three have to agree, but there is no redundancy, which was the case here.

[-] logi@piefed.world 1 points 9 months ago

Right. Re-reading your comment, I agree. n=3 is too small, even with SSS. BUT without it, 3 was too big in this case. So yey SSS!

this post was submitted on 22 Nov 2025
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