Decide identity library

[0chroma]

We need some way of having a consistent, cryptographically verifiable identity across a user's devices. Some options:

• W3C DID standard
  • https://identity.foundation/peer-did-method-spec/index.html
  • https://github.com/iotaledger/identity.rs
• keypair like with briar/ssb
• Social key recovery
  • https://darkcrystal.pw/

[0chroma]

until the DID ecosystem matures, I think its best to stick with generic keypairs. Identity can always be upgraded.