Privacy

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

submitted 4 months ago* (last edited 4 months ago) by [email protected] to c/[email protected]

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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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[–] [email protected] 3 points 4 months ago* (last edited 4 months ago)

Cool, this is exactly what I was hoping to learn but couldn't find. It sounds like its still a pretty manual process, but thats okay. If thats how it is righ now, then thats exactly what I want to know.

I'm considering making tools (GUI local app, but also website AUTH frontend/backend tooling) to try and make systems like this more commonplace and standardized. I didn't know about revocation keys, so I'm glad I heard about that before trying to build my own.