BitcoinAlchemist on Nostr: I’d love to use some kind of nostr based private messaging protocol, but I have yet ...

I’d love to use some kind of nostr based private messaging protocol, but I have yet to find one. Something based on simple well-researched cryptography.

Alice and Bob should be able to find each other and just do a simple key exchange protocol. Then they can symmetric key encrypt all messages in their messaging session. Even better if the keys are ephemeral/single use. Regardless of the relays they use it shouldn’t compromise their privacy and if keys are ephemeral then it would be quite resistant to censorship.

Someone like opensats should fund some work in that direction. If u know of any nostr messaging apps/services please do recommend.