Android™

Example: Crypt2.DecryptStringENC method

Demonstrates how to call the DecryptStringENC method. 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);

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

    CkCrypt2 crypt = new CkCrypt2();

    crypt.put_CryptAlgorithm("aes");
    crypt.put_CipherMode("cbc");
    crypt.put_KeyLength(128);
    crypt.SetEncodedKey("000102030405060708090A0B0C0D0E0F","hex");
    crypt.SetEncodedIV("000102030405060708090A0B0C0D0E0F","hex");
    crypt.put_EncodingMode("base64");

    //  Return the base64 encoded encrypted bytes
    String encodedEncrypted = crypt.encryptStringENC("Hello World!");
    Log.i(TAG, "Encrypted: " + encodedEncrypted);

    //  Output:
    //  Encrypted: qiq+IFhcjTkEIkZyf31V/g==

    //  Decrypt
    String originalText = crypt.decryptStringENC(encodedEncrypted);

    Log.i(TAG, "Decrypted: " + originalText);

    //  Output:
    //  Decrypted: Hello World!

  }

  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."
  }
}