Dart

Convert CRL PEM to XML

See more PEM Examples

Loads a CRL (Certificate Revocation List) from the PEM file format and converts to XML to allow for visual examination and parsing.

Note: This example requires Chilkat v9.5.0.77 or greater.

Dart

import 'package:chilkat/chilkat.dart';

void main() {
  // This example requires the Chilkat API to have been previously unlocked.
  // See Global Unlock Sample for sample code.

  // This example requires Chilkat v9.5.0.77 or greater.
  final pem = CkPem();

  pem.verboseLogging = true;
  try {
    pem.loadPemFile('qa_data/crl/sampleCrl.pem', 'password_not_used');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  final numCrls = pem.numCrls;
  var i = 0;

  final asn = CkAsn();
  final xml = CkXml();
  while (i < numCrls) {

    // Get the CRL as base64 (multi-line)
    final String crlBase64;
    try {
      crlBase64 = pem.getEncodedItem('crl', '', 'base64_mime', i);
    } on ChilkatException catch (e) {
      print(e.lastErrorText);
      return;
    }

    print(crlBase64);

    try {
      asn.loadEncoded(crlBase64, 'base64');
    } on ChilkatException catch (e) {
      print(e.lastErrorText);
      return;
    }

    // Convert ASN.1 to XML and load into xml and re-emit for pretty printing..
    xml.loadXml(asn.asnToXml());
    print(xml.getXml());

    // Use this online tool to generate parsing code from CRL XML: 
    // Generate Parsing Code from XML

    print('-------------------------------------');
    i++;
  }
}