Android Open Source - CryptoLock Main Activity

• Back to SQLite/library  ↑

From Project

Back to project page CryptoLock.

License

The source code is released under:

Apache License

Java Source Code

package com.example.cryptolock;
//w w  w .j  a  v a 2 s.co m
import java.security.InvalidAlgorithmParameterException;
import java.security.InvalidKeyException;
import java.security.NoSuchAlgorithmException;

import javax.crypto.BadPaddingException;
import javax.crypto.IllegalBlockSizeException;
import javax.crypto.NoSuchPaddingException;

import android.os.Bundle;
import android.app.Activity;
import android.content.Context;
import android.util.Log;
import android.view.View;
import android.view.View.OnClickListener;
import android.widget.Button;
import android.widget.EditText;
import android.widget.TextView;


public class MainActivity extends Activity {
  TextView encryptedDataView;
  EditText editInputData;
  private Context cntx;

  @Override
  protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main);
    this.cntx = getApplicationContext();
    Button btnEncrypt = (Button) findViewById(R.id.buttonEncrypt);
    Button btnDecrypt = (Button) findViewById(R.id.buttonDecrypt);
    Button btnDelete = (Button) findViewById(R.id.buttonDelete);
    editInputData = (EditText)findViewById(R.id.editInputData) ;
    encryptedDataView = (TextView) findViewById(R.id.encryptView);

    /**********************************************/
    /** INITIALIZE KEY AND INITIALIZATION VECTOR **/
    String key = "12345678909876543212345678909876";
    String iv = "1234567890987654";
    KeyManager km = new KeyManager(getApplicationContext());
    km.setIv(iv.getBytes());
    km.setId(key.getBytes());
    /**********************************************/

    btnEncrypt.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        String Data = editInputData.getText().toString();
        String Encrypted_Data = "data";
        try {
          Crypto crypto = new Crypto(cntx);
          Encrypted_Data = crypto.armorEncrypt(Data.getBytes());
        }   catch (InvalidKeyException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (NoSuchAlgorithmException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (NoSuchPaddingException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (IllegalBlockSizeException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (BadPaddingException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (InvalidAlgorithmParameterException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        }
        encryptedDataView.setText(Encrypted_Data);
      }
    });

    btnDecrypt.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        String Data = encryptedDataView.getText().toString();
        String Decrypted_Data = "data";
        try {
          Crypto crypto = new Crypto(cntx);
          Decrypted_Data = crypto.armorDecrypt(Data);
        }   catch (InvalidKeyException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (NoSuchAlgorithmException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (NoSuchPaddingException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (IllegalBlockSizeException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (BadPaddingException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        } catch (InvalidAlgorithmParameterException e) {
          Log.e("SE3", "Exception in StoreData: " + e.getMessage());
        }
        encryptedDataView.setText(Decrypted_Data);
      }
    });

    btnDelete.setOnClickListener(new OnClickListener() {
      @Override
      public void onClick(View v) {
        encryptedDataView.setText(" Deleted ");
      }
    });

  }

}

Java Source Code List

• Back to SQLite/library  ↑