(Android™) Convert JCEKS to JWK Set (JSON Web Key Set)

Demonstrates how to read a JCEKS keystore file containing a mixture of key types (ECC key and symmetric secret key), and converts to a JWK Set (JSON Web Key Set).

This example uses the jceks sample file that you may download from Sample JCEKS with Multiple Key Types (ECC Key and Secret Key)

The file password is "mixed". The password for each key contained in the JCEKS is "password".

This example requires Chilkat v9.5.0.66 or greater.

Chilkat Android™ Downloads Android™ Java Libraries Android C/C++ Libraries

// 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);

    // IMPORTANT: This example requires Chilkat v9.5.0.66 or greater.

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

    CkJavaKeyStore jceks = new CkJavaKeyStore();

    String filePassword = "mixed";
    boolean success = jceks.LoadFile(filePassword,"qa_data/jks/sample_mixed.jceks");
    if (success != true) {
        Log.i(TAG, jceks.lastErrorText());
        return;
        }

    String keyPassword = "password";

    // To convert to a JWKSet, all of the keys contained within the JCEKS must use the same password.
    CkStringBuilder sbJson = new CkStringBuilder();
    success = jceks.ToJwkSet(keyPassword,sbJson);
    if (success != true) {
        Log.i(TAG, jceks.lastErrorText());
        return;
        }

    // Emit the JSON in pretty-printed (indented) form:
    CkJsonObject json = new CkJsonObject();
    json.LoadSb(sbJson);
    json.put_EmitCompact(false);
    Log.i(TAG, json.emit());

    // Output:
    // { 
    //   "keys": [
    //     { 
    //       "kty": "EC",
    //       "crv": "P-384",
    //       "x": "uB62JGMJKXnp1PNsOOIYKGhrzfLev3O-UuthL6UzEqNNDTd8dEYMUQP_DTS3qk98",
    //       "y": "gyQEFxdmZUsPF0fFokkZZ1cV6z7QD3MsPvSjrBzB0GUB3r8CLnDK_F4pF2Q995hr",
    //       "d": "ugTy2ZpuQqv1uQyLSgz1SPRvngzrd5vLyzU2ICaJd25zZRIxxlNR-uFo9UWC6llt",
    //       "kid": "cn=chilkat admin,ou=persona not verified,ou=for test purposes only decryption key",
    //       "x5c": [
    //         "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",
    //         "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"
    //       ]
    //     },
    //     { 
    //       "kty": "oct",
    //       "alg": "AES",
    //       "k": "sUy3uJtNlNQg94T45lxw9A",
    //       "kid": "my aes key"
    //     }
    //   ]
    // }
    // 

  }

  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."
  }
}