Android™

XAdES XML Signature using ARSS (Aruba Remote Signing Service)

See more Signing in the Cloud Examples

Demonstrates how to sign XML using ARSS (Aruba Remote Signing Service). Android™

// Important: Don't forget to include the call to System.loadLibrary
// as shown at the bottom of this code sample.
package com.test;

import android.app.Activity;
import com.chilkatsoft.*;

import android.widget.TextView;
import android.os.Bundle;

public class SimpleActivity extends Activity {

  private static final String TAG = "Chilkat";

  // Called when the activity is first created.
  @Override
  public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);

    boolean success = false;

    // This example requires the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    // --------------------------------------------------------------------------------
    // Also see Chilkat's Online WSDL Code Generator
    // to generate code and SOAP Request and Response XML for each operation in a WSDL.
    // --------------------------------------------------------------------------------

    // Create the XML to be signed.
    CkStringBuilder sbXml = new CkStringBuilder();

    boolean bCrlf = true;
    sbXml.AppendLine("<?xml version=\"1.0\" encoding=\"UTF-8\" standalone=\"no\" ?>",bCrlf);
    sbXml.AppendLine("<SOAP-ENV:Envelope xmlns:SOAP-ENV=\"http://schemas.xmlsoap.org/soap/envelope/\">",bCrlf);
    sbXml.AppendLine("    <SOAP-ENV:Header>",bCrlf);
    sbXml.AppendLine("        <wsse:Security xmlns:wsse=\"http://docs.oasis-open.org/wss/2004/01/oasis-200401-wss-wssecurity-secext-1.0.xsd\" SOAP-ENV:mustUnderstand=\"1\"></wsse:Security>",bCrlf);
    sbXml.AppendLine("    </SOAP-ENV:Header>",bCrlf);
    sbXml.AppendLine("    <SOAP-ENV:Body xmlns:SOAP-SEC=\"http://schemas.xmlsoap.org/soap/security/2000-12\" SOAP-SEC:id=\"Body\">",bCrlf);
    sbXml.AppendLine("        <z:FooBar xmlns:z=\"http://example.com\" />",bCrlf);
    sbXml.AppendLine("    </SOAP-ENV:Body>",bCrlf);
    sbXml.AppendLine("</SOAP-ENV:Envelope>",bCrlf);

    // Specify the signing certificate and the ARSS credentials

    // Load the certificate used for signing.  The certificate's private key is stored on 
    // the Aruba.it server and the signing will happen remotely using the
    // ARSS (Aruba Remote Signing Service).
    // However, we still need the certificate locally (without private key).
    CkCert cert = new CkCert();
    success = cert.LoadFromFile("qa_data/certs/myCert.cer");
    if (success == false) {
        Log.i(TAG, cert.lastErrorText());
        return;
        }

    // To sign using the Aruba Remote Signing Service, 
    // add the following lines of code to specify your authentication credentials,
    // and the ID of the certificate w/ private key on the server to be used.
    CkJsonObject jsonArss = new CkJsonObject();

    // Set the "service" equal to "ARSS" to tell Chilkat to use ARSS for signing.
    jsonArss.UpdateString("service","ARSS");
    // Specify the certificate ID, such as "AS0"
    // This certificate should match the certificate loaded in the above code.
    jsonArss.UpdateString("certID","YOUR_ARSS_CERT_ID");
    jsonArss.UpdateString("otpPwd","YOUR_OTP_PWD");

    // Specifies the OTP authentication environment.
    // 
    // Common values are:
    //   "demoprod" - Demo/Test environment
    //   "prod"     - Production environment
    // 
    // This value is sent to the ARSS service and determines how the OTP
    // authentication is validated.  The correct value depends on the type
    // of Aruba account and environment that has been provisioned.
    // 
    // If signing fails with an authentication-related error, verify that
    // the typeOtpAuth value matches the environment associated with the
    // ARSS account credentials being used.
    jsonArss.UpdateString("typeOtpAuth","demoprod");

    jsonArss.UpdateString("user","YOUR_ARSS_USERNAME");
    jsonArss.UpdateString("userPWD","YOUR_ARSS_PASSWORD");

    // The "endpoint" can be specified starting in Chilkat v11.5.0
    jsonArss.UpdateString("endpoint","https://app1.firma-remota.it/ArubaSignerService/webresources/signerservice");

    success = cert.SetCloudSigner(jsonArss);

    // Prepare for signing...
    CkXmlDSigGen gen = new CkXmlDSigGen();

    // Indicate where the Signature will be inserted.
    gen.put_SigLocation("SOAP-ENV:Envelope|SOAP-ENV:Header|wsse:Security");

    // Add a reference to the fragment of the XML to be signed.

    // Note: "Body" refers to the XML element having an "id" equal to "Body", where "id" is case insensitive
    // and where any namespace might qualify the attribute.  In this case, the SOAP-ENV:Body fragment is signed
    // NOT because the tag = "Body", but because it has SOAP-SEC:id="Body"
    gen.AddSameDocRef("Body","sha1","EXCL_C14N","","");

    // (You can read about the SignedInfoPrefixList in the online reference documentation.  It's optional..)
    gen.put_SignedInfoPrefixList("wsse SOAP-ENV");

    gen.put_KeyInfoType("X509Data");
    gen.put_X509Type("IssuerSerial");

    boolean bUsePrivateKey = true;
    success = gen.SetX509Cert(cert,bUsePrivateKey);
    if (success == false) {
        Log.i(TAG, gen.lastErrorText());
        return;
        }

    // Everything's specified.  Now create and insert the Signature
    // (The actual signing of the hash will happen on the Aruba server.)
    success = gen.CreateXmlDSigSb(sbXml);
    if (success == false) {
        Log.i(TAG, gen.lastErrorText());
        return;
        }

    // Examine the XML with the digital signature inserted
    Log.i(TAG, sbXml.getAsString());

  }

  static {
      System.loadLibrary("chilkat");

      // Note: If the incorrect library name is passed to System.loadLibrary,
      // then you will see the following error message at application startup:
      //"The application <your-application-name> has stopped unexpectedly. Please try again."
  }
}