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by honestjohn
654 days ago
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Maybe it's similar to adding a new chat participant, except your client says "btw this is also me." I used that way when designing a toy e2ee app a while back. Or maybe there is a central repo of each user's per-device pub keys, and your client signs its updates to it using the original pub key so it's tamper-evident. Maybe there's some key derivation mechanism so the new pubkey is self-evidently owned by the first one, never heard of one though. |
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