{
  "resourceType" : "CodeSystem",
  "id" : "58c582ff-365e-41aa-b247-43011355c5bd-6",
  "url" : "http://hl7.org/fhir/comparison/CodeSystem/58c582ff-365e-41aa-b247-43011355c5bd-6",
  "name" : "IntersectionWHO_TRUST_KEYUSAGEAndWHO_TRUST_KEYUSAGE",
  "title" : "Intersection of WHO.TRUST.KEYUSAGE CodeSystem And WHO.TRUST.KEYUSAGE CodeSystem",
  "status" : "active",
  "date" : "2024-10-04T12:12:47+00:00",
  "jurisdiction" : [{
    "coding" : [{
      "system" : "http://unstats.un.org/unsd/methods/m49/m49.htm",
      "code" : "001"
    }]
  }],
  "concept" : [{
    "code" : "SCA",
    "display" : "Signer Certificate Authority (SCA)",
    "definition" : "A certificate which acts a trust anchor in the verification of the certificate chain for the DSCs issued by a Trust Network participant"
  },
  {
    "code" : "DSC",
    "display" : "Document Signing Certificate (DSC)",
    "definition" : "A certificate which may be used to verify a digital signature within a Verfifiable Digital Health Certificate"
  },
  {
    "code" : "TLS",
    "display" : "Transport Layer Security (TLS)",
    "definition" : "Used for establishing (m)TLS connections with systems, in particular between the Trust Network Gateway and backend systems of a Trust Network Participant"
  },
  {
    "code" : "UP",
    "display" : "Upload (UP)",
    "definition" : "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"
  }]
}