(Java) Create CAdES-T Signature using Aruba TSA Server (servizi.arubapec.it)

Demonstrates how to create a signature with an external timestamp (using the Aruba TSA Server) that certifies the time of signing.

Note: This example requires Chilkat v9.5.0.79 or greater.

Chilkat Java Downloads Java Libs for Windows, MacOS, Linux, Alpine Linux, Solaris Java Libs for Android

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.

    CkCrypt2 crypt = new CkCrypt2();

    // This example will use a certificate + private key from a .pfx/.p12 file.
    // On Windows systems, it is also possible to use certs on smartcards/usb tokens or certs pre-installed in the Windows registry.
    CkCert cert = new CkCert();

    String pfxPath = "qa_data/pfx/myCertAndKey.p12";
    String pfxPassword = "test123";

    boolean success = cert.LoadPfxFile(pfxPath,pfxPassword);
    if (success != true) {
        System.out.println(cert.lastErrorText());
        return;
        }

    success = crypt.SetSigningCert(cert);

    // Use SHA-256 rather than the default of SHA-1
    crypt.put_HashAlgorithm("sha256");

    // Create JSON that tells Chilkat what signing attributes to include:
    CkJsonObject attrs = new CkJsonObject();
    attrs.UpdateBool("contentType",true);
    attrs.UpdateBool("signingTime",true);
    attrs.UpdateBool("messageDigest",true);
    attrs.UpdateBool("signingCertificateV2",true);

    // A CAdES-T signature is one that includes a timestampToken created by an online TSA (time stamping authority).
    // We must include the TSA's URL, as well as a few options to indicate what is desired.
    // This example uses the Aruba TSA server, which requires a login/password for the HTTPS request.
    attrs.UpdateBool("timestampToken.enabled",true);
    attrs.UpdateString("timestampToken.tsaUrl","https://servizi.arubapec.it/tsa/ngrequest.php");

    // The tsaUsername/tsaPassword feature was added in Chilkat v9.5.0.79.
    // Make sure you are using a version of Chilkat that is no older than v9.5.0.79
    attrs.UpdateString("timestampToken.tsaUsername","arubaTsaUsername");
    attrs.UpdateString("timestampToken.tsaPassword","arubaTsaPassword");

    attrs.UpdateBool("timestampToken.addNonce",false);
    attrs.UpdateBool("timestampToken.requestTsaCert",true);
    attrs.UpdateString("timestampToken.hashAlg","sha256");

    crypt.put_SigningAttributes(attrs.emit());

    String inFile = "qa_data/json/sample.json";
    String outFile = "qa_output/sample_cades_t.p7m";

    // This creates the CAdES-T signature.  During the signature creation, it
    // communicates with the TSA to get a timestampToken.
    success = crypt.CreateP7M(inFile,outFile);
    if (success != true) {
        System.out.println(crypt.lastErrorText());
        return;
        }

    System.out.println("Success.");
  }
}