Android™

Load PEM Public/Private Key into RSA Object

See more RSA Examples

Demonstrates how to load a PEM key into the Chilkat RSA object. 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 assumes the Chilkat API to have been previously unlocked.
    // See Global Unlock Sample for sample code.

    CkRsa rsa = new CkRsa();

    // First demonstrate importing a PEM public key:
    String publicKeyPem = "PEM public-key data goes here";
    CkPublicKey pubkey = new CkPublicKey();

    success = pubkey.LoadFromString(publicKeyPem);
    if (success == false) {
        Log.i(TAG, pubkey.lastErrorText());
        return;
        }

    success = rsa.UsePublicKey(pubkey);
    if (success == false) {
        Log.i(TAG, rsa.lastErrorText());
        return;
        }

    // Demonstrate importing a PEM private key:
    String privateKeyPem = "PEM private-key data goes here";
    CkPrivateKey privkey = new CkPrivateKey();

    // If the private key PEM is protected with a password, then 
    // call LoadEncryptedPem.  Otherwise call LoadPem.
    success = privkey.LoadPem(privateKeyPem);
    if (success == false) {
        Log.i(TAG, privkey.lastErrorText());
        return;
        }

    success = rsa.UsePrivateKey(privkey);
    if (success == false) {
        Log.i(TAG, rsa.lastErrorText());
        return;
        }

    Log.i(TAG, "OK!");

  }

  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."
  }
}