Dart

ScMinidriver - Delete Smart Card Key Container

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Demonstrates how to delete the contents of a key container on a smart card (or USB token). 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.

  // Chilkat recommends the following free tool for interactively examining the contents of your smart card
  // through the ScMinidriver interface:  MGTEK Tool for Minidriver enabled Smart Cards

  // Let's first look at our smart card..
  // Here's the view of the card we happen to be using: a Gemalto (Thales) IDPrime MD T=0 smart card.

  // (image:https://example-code.com/images/gemalto_idprime_after_key_import.JPG/endImage)

  final scmd = CkScMinidriver();

  // First we need to acquire a context to the smart card in the reader where it is inserted.
  // Reader names (smart card readers or USB tokens) can be discovered
  // via List Readers or Find Smart Cards
  final readerName = 'Alcor Micro USB Smart Card Reader 0';
  try {
    scmd.acquireContext(readerName);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // If successful, the name of the currently inserted smart card is available:
  print('Card name: ${scmd.cardName}');

  // To delete the contents of a key container, we'll need to be PIN authenticated..

  // For more details about smart card PIN authentication, see the Smart Card PIN Authentication Example
  final pinId = 'user';
  final retval = scmd.pinAuthenticate(pinId, '0000');
  if (retval != 0) {
    print('PIN Authentication failed.');
    scmd.deleteContext();
    return;
  }

  // Let's delete the contents of key container #7
  // This deletes both keys (signature key and "key exchange" key) that might be present in the key container.
  // (It is not possible to delete just one or the other.)
  try {
    scmd.deleteKeyContainer(7);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    scmd.deleteContext();
    return;
  }

  scmd.deleteContext();
  print('Successfully delete the contents of key container #7');
}