nips/705.md

NIP-704

Republish Encrypted Direct Messages

draft optional author:fiatjaf author:motorina0

This NIP defines a way for a client to indirectly publish kind:4 events to a relay with the help of its peers.

Motivation

One way to increase the privacy of Encrypted Direct Messages (NIP-04) is for peers to derive new one-use-only keys when they communicate (see NIP704).

This technique hides from the "general public" that two clients are chatting. However, the relay(s) in the middle can still see who is publishing events and who is listening for events with specific public keys.

Suggestion

• Alice wants to chat with Bob. She builds the kind:4 nostr event but does NOT sent it to the relay(s).
• instead Alice creates an event for Carol where the content is the event for Bob. Alice publishes this event to the relay(s).
• Carol receives the event, unwrapps it and publishes to the relay(s) the event for Bob.
• the relay(s) see the event as comming from Carol instead of Alice