(Java) Authenticode Sign using Smartcard or USB Token

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Note: Chilkat's code signing class was added in v9.5.0.97

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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.

    boolean success;

    // First create the following JSON to specify that SHA256 is to be used,
    // and provide timestamp server information.

    // {
    //   "hashAlg": "sha256",
    //   "timestampToken": {
    //     "enabled": true,
    //     "tsaUrl": "http://timestamp.digicert.com",
    //     "requestTsaCert": true,
    //     "hashAlg": "sha256"
    //   }
    // }

    CkJsonObject json = new CkJsonObject();
    json.UpdateString("hashAlg","sha256");
    json.UpdateBool("timestampToken.enabled",true);
    json.UpdateString("timestampToken.tsaUrl","http://timestamp.digicert.com");
    json.UpdateBool("timestampToken.requestTsaCert",true);
    json.UpdateString("timestampToken.hashAlg","sha256");

    // The only difference in signing with a smartcard or USB token
    // is that the cert is loaded from a smartcard or USB token, instead of a PFX or from elsewhere
    // such as from the Windows certificate store.
    CkCert cert = new CkCert();

    // Yubico YubiKey OTP+FIDO+CCID 0, default PIN = 123456
    cert.put_SmartCardPin("123456");

    // Assuming you have the Yubikey inserted into the USB on the computer...
    // and there is only 1 signing certificate on the Yubikey, then just load from
    // the "smartcard".  (assuming you don't have additional smartcards or USB tokens plugged in)
    success = cert.LoadFromSmartcard("");
    if (success == false) {
        System.out.println(cert.lastErrorText());
        return;
        }

    // If the smartcard/token has several possible certificates that can be used for signing,
    // then see the online documentation for the LoadFromSmartcard method,
    // and also see the online documentation and examples for Chilkat Pkcs11 and ScMinidriver.
    // There are many possible ways to load a Chilkat certificate object with a cert (and associated private key)
    // from a variety of sources.  The only coding difference for any signing function in Chilkat,
    // whether it be a PDF, XmlDSig, CMS, etc. is in how the cert is loaded.

    // You can sign .exe or .dll files.
    String exePath = "C:/someOtherDir/HelloWorld.exe";

    CkCodeSign signer = new CkCodeSign();

    // If successful, the following call will apply the signature to the EXE (or DLL).
    success = signer.AddSignature(exePath,cert,json);
    if (success == false) {
        System.out.println(signer.lastErrorText());
        return;
        }

    System.out.println("Successfully applied the Authenticode signature.");
  }
}