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To comply with the intellectual property rights protections in the charter of the ToIP Foundation (as required by all Joint Development Foundation projects hosted the Linux Foundation), all contributors to this Pre-Draft Deliverable MUST be current members of the ToIP Foundation and the Technology Stack Working Group (TSWG). The following contributors each certify that they meet this requirement:
- Drummond Reed, Evernym
- Darrell O'Donnell, Continuum Loop
Terminology
In this document, the key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT", "SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this document are to be interpreted as described in RFC 2119.
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The purpose of this TSS is to specify a standard interoperable protocol for interactions with any ToIP-compliant trust registry.
Motivations
A core role within ToIP Layer 4 is a trust registry (previously known as a member directory). This is a network service that enables a governing authority for an ecosystem governance framework (EGF) to specify what governed parties are authorized to perform what actions under the EGF. For example:
- What issuers are authorized to issue what types of verifiable credentials.
- What verifiers are authorized to request what types of verifiable presentations.
- What other governing authorities are trusted to authorize these same parties and actions within their own trust registries.
As with all layers of the ToIP stack, the purpose of a TSS is to enable the technical interoperability necessary to support transitive trust across different trust communities implementing the ToIP stack. In this case, the desired interoperability outcome is a common protocol that works between any number of decentralized trust registries operated by independent governing authorities representing multiple legal and business jurisdictions. One specific example of this need is the digital trust ecosystem defined by the Interoperability Working Group for Good Health Pass (GHP). The GHP Trust Registries Drafting Group produced an extensive set of recommended requirements for a GHP-compliant trust registry.
TODO - Working Sections of the TSS
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