Subnostr

How do we increase privacy in E2EE Nostr DMs?

We decentralize further. We can privately tell each DM peer to use a different relay and key for each message in the chat. In that way, your trusted relays only capture part of the conversation and, if setup correctly, they can't correlate all of your keys as one identity.

Feedback is welcome.

https://github.com/nostr-protocol/nips/pull/1306

JeffG 1y ago

I don't like it. It adds some obfuscation but doesn't really fix the problem because you have to start the conversation in the normal way (addressing the GW messages to the real pubkey) OR the receiver needs to create lists of alias' for each and every contact that they might one day receive a message from.

Or am I missing something?

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Discussion

Vitor Pamplona 1y ago

It fixes what's proposing to fix which is the metadata leak per message. The key alias event is similar to the conversation request on your ratchet proposal.

And since wraps are already going back and forth, the public/relay is not able to distinguish between the key alias event and any other encrypted payload.