Dart

Verify the Timestamp Server Token (if any) while Validating a CMS Signature

Demonstrates how to also validate the timestamp server token (if any) while validating a CMS signature. Dart

import 'package:chilkat/chilkat.dart';

void main() {
  final crypt = CkCrypt2();

  // Tell Chilkat to also validate the timestamp token if a timestamp exists in the CMS message's unauthenticated attributes.
  final cmsOptions = CkJsonObject();
  cmsOptions.updateBool('ValidateTimestampTokens', true);
  crypt.cmsOptions = cmsOptions.emit();

  final outputFile = 'qa_output/original.xml';
  final inFile = 'qa_data/p7m/fattura_signature.xml.p7m';

  // Verify the signature and extract the contained file, which in this case is XML.
  try {
    crypt.verifyP7M(inFile, outputFile);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('Signature validated.');
}