(Java) FTPS with Client Cert from Windows Certificate Store

Demonstrates how to do mutual TLS authentication using a client certificate installed in the Windows certificate store.

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import com.chilkatsoft.*;

public class ChilkatExample {

  static {
    try {
        System.loadLibrary("chilkat");
    } catch (UnsatisfiedLinkError e) {
      System.err.println("Native code library failed to load.\n" + e);
      System.exit(1);
    }
  }

  public static void main(String argv[])
  {
    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkFtp2 ftp = new CkFtp2();

    ftp.put_Hostname("ftp.example.com");

    // If using implicit TLS, you probably want port 990..
    ftp.put_Port(990);

    // Set this to false for implicit TLS, otherwise set to true for explicit TLS (where port is typically 21).
    ftp.put_AuthTls(false);

    // Set this to true for implicit TLS, otherwise set to false.
    ftp.put_Ssl(true);

    CkCert cert = new CkCert();
    boolean success = cert.LoadByCommonName("The common name of your certificate");
    if (success == false) {
        System.out.println(cert.lastErrorText());
        return;
        }

    // Use this certificate for our TLS mutually authenticated connection:
    success = ftp.SetSslClientCert(cert);
    if (success == false) {
        System.out.println(cert.lastErrorText());
        return;
        }

    // Establish the TLS connection with the FTP server.
    success = ftp.ConnectOnly();
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // If a login is required, then login with the FTP account login/password.
    ftp.put_Username("myLogin");
    ftp.put_Password("myPassword");
    success = ftp.LoginAfterConnectOnly();
    if (success == false) {
        System.out.println(ftp.lastErrorText());
        return;
        }

    // Do whatever you're doing to do ...
    // upload files, download files, etc...

    // .....
    // .....

    success = ftp.Disconnect();
  }
}