A System for Handling 1 Compromised Key (lemm.ee)

submitted 4 months ago* (last edited 4 months ago) by jeffhykin@lemm.ee to c/privacy@lemmy.ml

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I'm asking for existing tools/systems that let me programmatically say: "here is my public key, BUT if each of these 5 other public keys all send a signed message saying that my public key has been compromised, then you should mark my public key as compromised, and use the new one they provide". (This is not for a particular task, I'm just curious if any existing auth systems are capable of this)

I call the idea "guardian keys" because it could be friends' public keys or or just more-securely-stored less-frequently-used keys that you control.

NOTE: I know this would not work for data encryption. Encrypted data is simply gone if a key is lost. But, for proving an identity, like a login, there could be a system like this but I don't know of any

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[-] jeffhykin@lemm.ee 2 points 4 months ago

Yeah, sorry I incrementally edited the title before posting and accidentally made it make no sense. I meant publicly announce that a private key was compromised

[-] just_another_person@lemmy.world 1 points 4 months ago

Got it. Well, mostly the same situation, in which you would only know if your key was compromised by finding it somewhere.

this post was submitted on 08 Jul 2024

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