AES256Cipher Android

AES256Cipher.java

public class AES256Cipher {
    public static byte[] ivBytes = {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0};

    public static String AES_Encode(String str, String str2) throws UnsupportedEncodingException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
        byte[] bytes = str.getBytes("UTF-8");
        IvParameterSpec ivParameterSpec = new IvParameterSpec(ivBytes);
        SecretKeySpec secretKeySpec = new SecretKeySpec(str2.getBytes("UTF-8"), "AES");
        Cipher instance = Cipher.getInstance("AES/CBC/PKCS5Padding");
        instance.init(1, secretKeySpec, ivParameterSpec);
        return Base64.encodeToString(instance.doFinal(bytes), 0);
    }

    public static String AES_Decode(String str, String str2) throws UnsupportedEncodingException, NoSuchAlgorithmException, NoSuchPaddingException, InvalidKeyException, InvalidAlgorithmParameterException, IllegalBlockSizeException, BadPaddingException {
        byte[] decode = Base64.decode(str, 0);
        IvParameterSpec ivParameterSpec = new IvParameterSpec(ivBytes);
        SecretKeySpec secretKeySpec = new SecretKeySpec(str2.getBytes("UTF-8"), "AES");
        Cipher instance = Cipher.getInstance("AES/CBC/PKCS5Padding");
        instance.init(2, secretKeySpec, ivParameterSpec);
        return new String(instance.doFinal(decode), "UTF-8");
    }
}