@prefix fhir: <http://hl7.org/fhir/> .
@prefix owl: <http://www.w3.org/2002/07/owl#> .
@prefix rdf: <http://www.w3.org/1999/02/22-rdf-syntax-ns#> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd: <http://www.w3.org/2001/XMLSchema#> .

# - resource -------------------------------------------------------------------

<http://smart.who.int/trust/CodeSystem/KeyUsage> a fhir:CodeSystem ;
  fhir:nodeRole fhir:treeRoot ;
  fhir:id [ fhir:v "KeyUsage"] ; # 
  fhir:text [
     fhir:status [ fhir:v "generated" ] ;
     fhir:div "<div xmlns=\"http://www.w3.org/1999/xhtml\"><p class=\"res-header-id\"><b>Generated Narrative: CodeSystem KeyUsage</b></p><a name=\"KeyUsage\"> </a><a name=\"hcKeyUsage\"> </a><a name=\"KeyUsage-en-US\"> </a><p>This case-insensitive code system <code>http://smart.who.int/trust/CodeSystem/KeyUsage</code> defines the following codes:</p><table class=\"codes\"><tr><td style=\"white-space:nowrap\"><b>Code</b></td><td><b>Display</b></td><td><b>Definition</b></td></tr><tr><td style=\"white-space:nowrap\">SCA<a name=\"KeyUsage-SCA\"> </a></td><td>Signer Certificate Authority (SCA)</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 style=\"white-space:nowrap\">DSC<a name=\"KeyUsage-DSC\"> </a></td><td>Document Signing Certificate (DSC)</td><td>A certificate which may be used to verify a digital signature within a Verfifiable Digital Health Certificate</td></tr><tr><td style=\"white-space:nowrap\">DECA<a name=\"KeyUsage-DECA\"> </a></td><td>Data Exchange Certificate Authority (DECA)</td><td>A certificate which acts a trust anchor in the verification of the certificate chain for the DESCs issued by a Trust Network Participant</td></tr><tr><td style=\"white-space:nowrap\">DESC<a name=\"KeyUsage-DESC\"> </a></td><td>Data Exchange Signing Certificate (DESC)</td><td>A certificate which may be used to initiate a secure data exchange connection (e.g. mTLS) between Trust Network Participants</td></tr><tr><td style=\"white-space:nowrap\">TLS<a name=\"KeyUsage-TLS\"> </a></td><td>Transport Layer Security (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><tr><td style=\"white-space:nowrap\">UP<a name=\"KeyUsage-UP\"> </a></td><td>Upload (UP)</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></table></div>"^^rdf:XMLLiteral
  ] ; # 
  fhir:url [ fhir:v "http://smart.who.int/trust/CodeSystem/KeyUsage"^^xsd:anyURI] ; # 
  fhir:version [ fhir:v "1.1.6"] ; # 
  fhir:name [ fhir:v "KeyUsage"] ; # 
  fhir:title [ fhir:v "WHO GDHCN Key Usage CodeSystem"] ; # 
  fhir:status [ fhir:v "active"] ; # 
  fhir:experimental [ fhir:v true] ; # 
  fhir:date [ fhir:v "2025-05-07T08:17:04+00:00"^^xsd:dateTime] ; # 
  fhir:publisher [ fhir:v "WHO"] ; # 
  fhir:contact ( [
     fhir:name [ fhir:v "WHO" ] ;
     fhir:telecom ( [
       fhir:system [ fhir:v "url" ] ;
       fhir:value [ fhir:v "http://who.int" ]
     ] )
  ] ) ; # 
  fhir:description [ fhir:v "CodeSystem for GDHCN Key Usage that has usage codes for verification keys published to the Trust Network as defined by the [certificate governance](concepts_certificate_governance.html)"] ; # 
  fhir:jurisdiction ( [
     fhir:coding ( [
       fhir:system [ fhir:v "http://unstats.un.org/unsd/methods/m49/m49.htm"^^xsd:anyURI ] ;
       fhir:code [ fhir:v "001" ]
     ] )
  ] ) ; # 
  fhir:caseSensitive [ fhir:v false] ; # 
  fhir:content [ fhir:v "complete"] ; # 
  fhir:count [ fhir:v "6"^^xsd:nonNegativeInteger] ; # 
  fhir:concept ( [
     fhir:code [ fhir:v "SCA" ] ;
     fhir:display [ fhir:v "Signer Certificate Authority (SCA)" ] ;
     fhir:definition [ fhir:v "A certificate which acts a trust anchor in the verification of the certificate chain for the DSCs issued by a Trust Network participant" ]
  ] [
     fhir:code [ fhir:v "DSC" ] ;
     fhir:display [ fhir:v "Document Signing Certificate (DSC)" ] ;
     fhir:definition [ fhir:v "A certificate which may be used to verify a digital signature within a Verfifiable Digital Health Certificate" ]
  ] [
     fhir:code [ fhir:v "DECA" ] ;
     fhir:display [ fhir:v "Data Exchange Certificate Authority (DECA)" ] ;
     fhir:definition [ fhir:v "A certificate which acts a trust anchor in the verification of the certificate chain for the DESCs issued by a Trust Network Participant" ]
  ] [
     fhir:code [ fhir:v "DESC" ] ;
     fhir:display [ fhir:v "Data Exchange Signing Certificate (DESC)" ] ;
     fhir:definition [ fhir:v "A certificate which may be used to initiate a secure data exchange connection (e.g. mTLS) between Trust Network Participants" ]
  ] [
     fhir:code [ fhir:v "TLS" ] ;
     fhir:display [ fhir:v "Transport Layer Security (TLS)" ] ;
     fhir:definition [ fhir:v "Used for establishing (m)TLS connections with systems, in particular between the Trust Network Gateway and backend systems of a Trust Network Participant" ]
  ] [
     fhir:code [ fhir:v "UP" ] ;
     fhir:display [ fhir:v "Upload (UP)" ] ;
     fhir:definition [ fhir:v "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" ]
  ] ) . # 

# -------------------------------------------------------------------------------------

