Adding new Contact

[tomsmith8]

Task

Parent Ticket for Account Creation.

Adding new contact:

• [ ] Generate new child pub key for the new contact: rust: pubkeyFromSeed (will be store on contact record childPubKey)
• [ ] Subscribe to the topics for this contact ${child_pubkey}/${index}/res/#
• [ ] Publish to register child pub key with LSP ${child_pubkey}/${index}/req/register
• [ ] Get identity back: lspPubkey, scid
• [ ] Form to set alias, pubkey and routeHint (contact ok pubkey and contact ok key route hint)
• [ ] Generate contact record with: alias, pubkey, routeHint, index, scid, childPubKey.
• [ ] Send key_exchange msg (use relay as reference). Fields to send on key_exchange:
  1. okKey: your own okKey
  2. routeHint: routeHint of your ok key
  3. contactKey: childPubKey generated for that contact
  4. contactRouteHint: build on this way -> lspPubKey_scid (lspPubKey from server record, scid from contact record)
• [ ] Update contact with contactKey and contactRouteHint coming on exchange_key_confirmation messsage
• [ ] On key_exchange message received: do same process described above and send back key_exchange_confirmation message with:
  1. okKey
  2. routeHint
  3. contactKey
  4. contactRouteHint