Dart

PKCS11 Sessions

See more PKCS11 Examples

Sample code showing how to open a PKCS11 session and then later close it.

Note: This example requires Chilkat v9.5.0.88 or later.

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.

  // Note: Chilkat's PKCS11 implementation runs on Windows, Linux, Mac OS X, and other supported operating systems.

  final pkcs11 = CkPkcs11();

  // Set your shared lib path -- either a full path to the DLL, .so, or .dylib,
  // or just the filename if the driver is in a location that can be automatically found. (Such as in C:\Windows\System32)
  pkcs11.sharedLibPath = 'ShuttleCsp11_3003.dll';

  // Starting in Chilkat v9.5.0.96, there is a shorter way to establish
  // a PKCS11 session with login.
  // The QuickSession method was added in v9.5.0.96 and is the equivalent of 
  // calling Initialize, OpenSession, and Login.  

  try {
    pkcs11.initialize();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Pass -1 for the slotID to open a session on the first non-empty slot.
  final slotID = -1;

  // Open a read/write session.
  final readWrite = true;
  try {
    pkcs11.openSession(slotID, readWrite);
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Do whatever is needed...
  // ...
  // ...

  // When finished, close the session.
  // It is important to close the session (memory leaks will occur if the session is not properly closed).

  try {
    pkcs11.closeSession();
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  print('PKCS11 session successfully opened and closed.');
}