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Agent Protocols

Rebooting Web of Trust 7

Adrian Gropper, Arturo Manzaneda

Objective

We’re catalyzing a world where each self-sovereign entity has agent technology and decentralized governance enables self-sovereign groups to compete for the participation of the self sovereign entities.

Deliverables

The paper will name actors and the protocols that connect them in the context of the Prescription Use-Case.

Assets/Prior work

The Prescription Use-Case is implied in the RWoT7 topic paper: Standards for Agency and Decentralized Information Governance - Early Experience by Adrian Gropper, MD, Michael Chen, MD, and Lydia Fazzio, MD. which is about a health record for the homeless in Atlanta, GA.

Another RWoT7 topic paper Digital Identity for the Homeless by Matthew Wong, T. Tian & CG Chen discusses a related issue.

Audience

The paper is intended for developers of protocol standards and for CEOs looking to apply these standards in their business model.

Key Points

Interoperable self-sovereign technology stacks looking for sustainable business models

  • Five Entities (Roles)
    • DMV (Issuer)
    • Medical Board (Issuer, DMV Verifier)
    • MD (Holder, Prescription Issuer)
    • Patient (Holder)
    • Pharmacy (Verifier)
  • Two Verifiable Credentials
    • MD License
    • Prescription
  • Three Agents
    • Patient
    • MD
    • Pharmacy
  • MD as Issuer has a Verifiable Display of the prescription
  • Pharmacy AND Patient together can Revoke the prescription (no double spending)

Outline

Abstract

The term agent has been used in many contexts within the self sovereign identity world. But what exactly do we mean by an agent? This paper will try to summarize the agent concept and at the same time identify the main phases and messages they need to exchange in order to be able to connect, receive credentials, and share proofs. We will start by assuming the discoverability of those agents, and leave that out of scope, for now.

Message Families

  • Establish a secure connection
  • Attestation: Receiving Credentials
  • Verification: Sharing Proofs
  • Consent: How are you going to use my data? data retention? policies?
  • Error handling: How we manage errors in the asynchronous interactions

Context Ideas

  • Agent Definition
  • Phases
    • Discovery (DID Resolver)
    • Connect
    • Transact

Entity Diagram

Example Diagram

Some Standards

  • W3C Verifiable Credentials
  • W3C DID
  • Kantara UMA
  • IETF OAuth2
  • …. what else?

Discussion and Future Work

Protocol standards can be harmonized in the context of self-sovereign technology stacks representing each of the entities for a particular use-case. This model can be used to elucidate value-added services that will get investment and accelerate the adoption of protocol standards. This model can also be a foundation for decentralized governance.

Impact

  • Our use of terms such as wallet and agent becomes more precise.
  • Protocol standards are scoped and layered to accommodate diverse business models.
  • Standards participation, implementation, and release is accelerated.
  • Self-sovereign technology stacks come to market sooner.
  • Decentralized governance rescues civilization.