Android™
Android™
Get the JWS Payload into BinData
See more JSON Web Signatures (JWS) Examples
Demonstrates Jws.GetPayloadBd, which writes the payload of a loaded JWS as raw bytes into a BinData.
Background. This is used when the payload is binary. In practice, validate the signature before trusting the payload.
Chilkat Android™ Downloads
// 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;
CkJws jws = new CkJws();
// Load the JWS compact serialization.
String jwsCompact = "eyJhbGciOiJIUzI1NiJ9.VGhpcyBpcyB0aGUgY29udGVudCB0byBzaWduLg.<signature>";
success = jws.LoadJws(jwsCompact);
if (success == false) {
Log.i(TAG, jws.lastErrorText());
return;
}
// Get the JWS payload as raw bytes into a BinData.
CkBinData bdPayload = new CkBinData();
success = jws.GetPayloadBd(bdPayload);
if (success == false) {
Log.i(TAG, jws.lastErrorText());
return;
}
Log.i(TAG, "Payload is " + String.valueOf(bdPayload.get_NumBytes()) + " bytes.");
}
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."
}
}