* that follows.
   */
  private val extensionValue: BasicDerAdapter<Any?> =
    Adapters.usingTypeHint { typeHint ->
      when (typeHint) {
        ObjectIdentifiers.SUBJECT_ALTERNATIVE_NAME -> subjectAlternativeName
        ObjectIdentifiers.BASIC_CONSTRAINTS -> basicConstraints
        else -> null
      }
    }.withExplicitBox(
      tagClass = Adapters.OCTET_STRING.tagClass,