EIP-6051: Private Key Encapsulation

[Weiji]

@alenhorvat

DID is a unique random string that resolves to a DID Document. DID Document is a collection of public keys controlled by the DID owner. You can add, update, and remove your keys, and the protocol ensures that you can add keys if and only if you control the DID (prove you own one of the DID controlling keys).

With regard to messaging & encryption, I think what you describe here might help with key discovery of EIP-5630, related but out of scope there.