Privacy

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

submitted 2 months ago* (last edited 2 months ago) by [email protected] to c/[email protected]

11 comments fedilink hide all child comments

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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[–] [email protected] 2 points 2 months ago (1 children)

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

[–] [email protected] 1 points 2 months ago

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