WHO SMART Trust
1.1.6 - CI Build

WHO SMART Trust, published by WHO. This guide is not an authorized publication; it is the continuous build for version 1.1.6 built by the FHIR (HL7® FHIR® Standard) CI Build. This version is based on the current content of https://github.com/WorldHealthOrganization/smart-trust/tree/68/merge and changes regularly. See the Directory of published versions

## CodeSystem: WHO.TRUST.KEYUSAGE CodeSystem (Experimental)

Official URL: http://smart.who.int/trust/CodeSystem/WHO.TRUST.KEYUSAGE | Version: 1.1.6
Active as of 2025-03-10 | Computable Name: WHO_TRUST_KEYUSAGE

CodeSystem for TRUST.KEYUSAGE that has usage codes for verification keys published to the Trust Network as defined by the certificate governance

This Code system is referenced in the content logical definition of the following value sets:

- WHO_TRUST_KEYUSAGE

Generated Narrative: CodeSystem WHO.TRUST.KEYUSAGE

This case-insensitive code system `http://smart.who.int/trust/CodeSystem/WHO.TRUST.KEYUSAGE` defines the following codes:

Code | Display | Definition
SCA | Signer Certificate Authority (SCA) | A certificate which acts a trust anchor in the verification of the certificate chain for the DSCs issued by a Trust Network participant
DSC | Document Signing Certificate (DSC) | A certificate which may be used to verify a digital signature within a Verfifiable Digital Health Certificate
TLS | Transport Layer Security (TLS) | Used for establishing (m)TLS connections with systems, in particular between the Trust Network Gateway and backend systems of a Trust Network Participant
UP | Upload (UP) | Used to verify digital signature of cryptographically signed content uploaded to services within the Global Digital Health Certification Network, in particular the Trust Network Gateway