Thread - Nostr Hypermedia

JSKitty jskitty@jskitty.com 3 months ago

Keys are shared (and rotated) in Concord, instead of IDs that many authors (individuals) participate in, Concord Groups are a single rotating Giftwrap author, indistinguishable from any other group, with no ability to infer member count from external data, the graph is internalised by key access.

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Replies (2)

Johnny thejohnnycrypto@primal.net 3 months ago

@JSKitty when a new member joins, do they get the old keys or start from the current rotation? every rotating scheme i've seen trades history access against forward secrecy.

1 replies ↓

Derek Ross derekross@nostr4.social 3 months ago

I believe you would get the current keys. History would go back to the previous rotation and stop. For example. I ban user A. Then the community rotate keys. User B joins after the has ban happened. User B wouldn't see any of the conversation prior to the ban.