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/tng-additional-context-jsonld and changes regularly. See the Directory of published versions

## : WHO GDHCN Key Usage ValueSet - JSON Representation

Active as of 2026-01-22

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    {
      "resourceType" : "ValueSet",
      "id" : "KeyUsage",
      "text" : {
        "status" : "extensions",
        "div" : "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: ValueSet KeyUsage</b></p><a name=\"KeyUsage\"> </a><a name=\"hcKeyUsage\"> </a><ul><li>Include these codes as defined in <a href=\"CodeSystem-KeyUsage.html\"><code>http://smart.who.int/trust/CodeSystem/KeyUsage</code></a><span title=\"Version is not explicitly stated, which means it is fixed to the version provided in this specification\"> version &#x1F4E6;1.1.6</span><table class=\"none\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td><a href=\"CodeSystem-KeyUsage.html#KeyUsage-SCA\">SCA</a></td><td>Signing Certificate Authority</td><td>A certificate which acts a trust anchor in the verification of the certificate chain for the DSCs issued by a Trust Network participant</td></tr><tr><td><a href=\"CodeSystem-KeyUsage.html#KeyUsage-DSC\">DSC</a></td><td>Document Signing Certificate</td><td>A certificate which may be used to verify a digital signature within a Verfifiable Digital Health Certificate</td></tr><tr><td><a href=\"CodeSystem-KeyUsage.html#KeyUsage-UP\">UP</a></td><td>Upload</td><td>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</td></tr><tr><td><a href=\"CodeSystem-KeyUsage.html#KeyUsage-TLS\">TLS</a></td><td>TLS</td><td>Used for establishing (m)TLS connections with systems, in particular between the Trust Network Gateway and backend systems of a Trust Network Participant</td></tr></table></li></ul></div>"
      },
      "url" : "http://smart.who.int/trust/ValueSet/KeyUsage",
      "version" : "1.1.6",
      "name" : "KeyUsage",
      "title" : "WHO GDHCN  Key Usage ValueSet",
      "status" : "active",
      "experimental" : true,
      "date" : "2026-01-22T07:17:30+00:00",
      "publisher" : "WHO",
      "contact" : [
        {
          "name" : "WHO",
          "telecom" : [
            {
              "system" : "url",
              "value" : "http://who.int"
            }
          ]
        }
      ],
      "description" : "ValueSet of codes for key usage codes for Production environment",
      "jurisdiction" : [
        {
          "coding" : [
            {
              "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
              "code" : "001"
            }
          ]
        }
      ],
      "compose" : {
        "include" : [
          {
            "system" : "http://smart.who.int/trust/CodeSystem/KeyUsage",
            "concept" : [
              {
                "code" : "SCA",
                "display" : "Signing Certificate Authority"
              },
              {
                "code" : "DSC",
                "display" : "Document Signing Certificate"
              },
              {
                "code" : "UP",
                "display" : "Upload"
              },
              {
                "code" : "TLS",
                "display" : "TLS"
              }
            ]
          }
        ]
      }
    }