Android™

Generate an RSA Key and Export to XML

See more RSA Examples

Demonstrates how to generate an RSA key and export public/private to XML. 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;

    CkRsa rsa = new CkRsa();

    //  Generate a 2048-bit key.
    CkPrivateKey privKey = new CkPrivateKey();
    success = rsa.GenKey(2048,privKey);
    if (success == false) {
        Log.i(TAG, rsa.lastErrorText());
        return;
        }

    CkPublicKey pubKey = new CkPublicKey();
    privKey.ToPublicKey(pubKey);

    String privKeyXml = privKey.getXml();
    Log.i(TAG, privKeyXml);

    //  Sample output:

    //  <RSAKeyValue>
    //  	<Modulus>pvxYRzbV8Gru5/NNFQunXkLfhUW9W83/A+LtVD5jhV5oDZ5mv9R3BbfBE88UTqGjA1jZoFegprY3dGpm7Dl0PFqIYSwfE869Tx7OGzg+ocsM3klTBslxVftN4grJzovfWeUbi22JNbOEjuvI9548OmTnIHhYI9yhl54xyIHUIRWCa6nlPNfqqFD/tscmel+2AwWM5hhylse2Q3xg1Y3D3al3BckGGvrBGjKAFoN60+kmD0mnisy0zfHRAiHH8EsqSXASXjqRa6G60jj+tRrdY5AcOrtWe7tsoHE8txGI+xZQ6g3MWelyNM6Dnb324hid8rNxj33lFiqbOkQGPvE9fw==</Modulus>
    //  	<Exponent>AQAB</Exponent>
    //  	<D>fsydqC3+lJpOoblBrhp0VAKJwqSrXpv06pmVx+O8JJkEgFrpAP+wBZp8NbOIYxEgPLlqP/RqXE1/nJnzX6tdFTtV1hvv2VWisQLeVRMHlEogkmaxcjTjJ/w1LtEsXvgdeSCdIunhR/LyVKi8qTLx3xGh5CkeHNU7q2sHuI7Favy0ux5JluKdrx4CSu30DKPhVvIoWTp4rif5lBBMojw7TEj2Gfbrfw8ZoPZRztjpqI8D4ZyxuFKrPEVWBNBt3yTE3TLWnlH1Me/5iwLgctLv+htDNStoKmco7t+xepusgALYachRaRe7bbVahDaQF/hOxKd00CpoetuasPjBP5yMaQ==</D>
    //  	<P>wl6TQ35VGfpR4dk1I+7JeQVXMyD9McAIKrlQ0uGc2U5Ts7MXXaq0l+QI6/VPsf0jtuzRiT4+wmDUgWjaYpNUaBn1KI+F/gRdMgZcmEOOGUDiCCsWUO0hS5tlchyY9l8LoPXFbpdfNFsLEZDtIEeNMyRzBHcZABoXWN/yFqGsaEU=</P>
    //  	<Q>2+74GkV4+1Dkxr/KGNZKfYaKEolaRRmjxeUj8VNLU9vKpaGXEgsi7208esH8KG5He1f8fJOIJtnRfUne/cg8vrqPRQ8nYDGSaNswPNQldji2FhNN2hWmhlQ3hS+ymTS8Dm8h1dqRVn/QQNvH8+WkcztmUNXKk3vtnc2UBakPdPM=</Q>
    //  	<DP>ar3zk9JSPBT7WNOnWldtr5eePsb0JZk3Ivdoipc6QyC/2OUWhOsViIDD4YlzveSt82x02jEj2C3DJlqF7DLK3Oy8dQz04f5Vi/5wZXJcHEREnYXEGKdRbKsneBZ6bnrd8QRn64cX0rHZD0mO3/ZLdfWjcKVTRnoNrlI2KfWZsB0=</DP>
    //  	<DQ>TvJgAuYvQF9QT/umavX5NUfnJjJBwg4rGK1hEo5oushp3Ly9gs+WkcVvcU1S25yCckcqLfmzZObJaSTsM8L98yT6qrp+0uvYd2U+0ocAj4hZ7GCvkHo3FX8Dkv6FKLOiUbgYuDBF/XvR4IZEJ0umlWqcFqY3mmtg50VVPhbqons=</DQ>
    //  	<InverseQ>W7bC5ZD55dv6XqmfHDVuUoI8IZQVnM1M1BtA5+tTFXxPT29ZUov7wOh+5R2nygUqkJfiNAC0s18tPiv7HoQXHxIskI2tXT3XM9yJdZOnAXCzV+xh+zeenBVTD63PvpNpC9Obrxd1rpBi2jTIFESgD0Cn5CKEIUpXIGntaNLLgDI=</InverseQ>
    //  </RSAKeyValue>

    String pubKeyXml = pubKey.getXml();
    Log.i(TAG, pubKeyXml);

    //  Sample output:
    //  <RSAPublicKey>
    //  	<Modulus>pvxYRzbV8Gru5/NNFQunXkLfhUW9W83/A+LtVD5jhV5oDZ5mv9R3BbfBE88UTqGjA1jZoFegprY3dGpm7Dl0PFqIYSwfE869Tx7OGzg+ocsM3klTBslxVftN4grJzovfWeUbi22JNbOEjuvI9548OmTnIHhYI9yhl54xyIHUIRWCa6nlPNfqqFD/tscmel+2AwWM5hhylse2Q3xg1Y3D3al3BckGGvrBGjKAFoN60+kmD0mnisy0zfHRAiHH8EsqSXASXjqRa6G60jj+tRrdY5AcOrtWe7tsoHE8txGI+xZQ6g3MWelyNM6Dnb324hid8rNxj33lFiqbOkQGPvE9fw==</Modulus>
    //  	<Exponent>AQAB</Exponent>
    //  </RSAPublicKey>

  }

  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."
  }
}