Dart

Socket TLS Mutual Authentication (Client-Side Certificate)

See more Socket/SSL/TLS Examples

This example demonstrates how to provide a client-side certificate, also known as "two-way authentication" or "mutual authentication" for servers that require a client certificate. Dart

import 'package:chilkat/chilkat.dart';

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

  final sock = CkSocket();

  // Set the certificate to be used for mutual TLS authentication
  // (i.e. sets the client-side certificate for two-way TLS authentication)
  try {
    sock.setSslClientCertPfx('/home/bob/pfxFiles/myClientSideCertWithPrivateKey.pfx', 'pfxPassword');
  } on ChilkatException catch (e) {
    print(e.lastErrorText);
    return;
  }

  // Note: The certificate used for the client-side of TLS mutual authentication
  // must have the associated private key available. (.pfx/.p12 files typically store both
  // the certificate and associated private key.)

  // Establish the connection using the socket object (with client certificate authentication).
  final bTls = true;
  final port = 443;
  final maxWaitMs = 5000;
  try {
    sock.connect('www.example.com', port, bTls, maxWaitMs);
  } on ChilkatException catch (e) {
    print('Connect Failure Error Code: ${sock.connectFailReason}');
    print(e.lastErrorText);
    return;
  }

  // At this point, the Socket object is connected and authenticated using the client-side cert

  // ...
  // ...
}