<StructureDefinition xmlns="http://hl7.org/fhir">
  <url value="https://luxith-etab.org/fhir/StructureDefinition/lu/EncryptionKeyExtension" />
  <name value="EncryptionKeyExtension" />
  <status value="draft" />
  <description value="This extension holds an AES key that has been encrypted with an RSA public key" />
  <fhirVersion value="5.0.0" />
  <kind value="resource" />
  <abstract value="false" />
  <context>
    <type value="element" />
    <expression value="DocumentReference" />
  </context>
  <type value="Extension" />
  <baseDefinition value="http://hl7.org/fhir/StructureDefinition/Extension" />
  <derivation value="constraint" />
  <differential>
    <element id="Extension">
      <path value="Extension" />
      <min value="1" />
      <max value="1" />
    </element>
    <element id="Extension.url">
      <path value="Extension.url" />
      <fixedUri value="https://luxith-etab.org/fhir/StructureDefinition/lu/EncryptionKeyExtension" />
    </element>
    <element id="Extension.value[x]">
      <path value="Extension.value[x]" />
      <min value="1" />
      <type>
        <code value="base64Binary" />
      </type>
    </element>
  </differential>
</StructureDefinition>