Dart

Extract XML File from a .p7m (e.g. FATTURA ELETTRONICA, ITALY)

See more Digital Signatures Examples

_LANGUAGE_ example to extract the original file from a .p7m (Signed-Data PKCS7 Format) The .p7m contains the signed contents of the original file.

One use for this example is to extract the XML file from a Fattura Elettronica .p7m signature.

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.

  final crypt = CkCrypt2();

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

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

  print('Success!');
}