Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;

import android.util.Base64;

import java.security.SecureRandom;
import javax.crypto.Cipher;
import javax.crypto.spec.SecretKeySpec;

public class Main {

    public static String DES_Transformation = "DES/ECB/NoPadding";
    private static final String DES_Algorithm = "DES";

    public static byte[] encryptDES2Base64(byte[] data, byte[] key) {
        return base64Encode(encryptDES(data, key));
    }

    public static byte[] base64Encode(String input) {
        return base64Encode(input.getBytes());
    }

    public static byte[] base64Encode(byte[] input) {
        return Base64.encode(input, Base64.NO_WRAP);
    }

    public static byte[] encryptDES(byte[] data, byte[] key) {
        return DESTemplet(data, key, DES_Algorithm, DES_Transformation, true);
    }

    public static byte[] DESTemplet(byte[] data, byte[] key, String algorithm, String transformation,
            boolean isEncrypt) {
        try {
            SecretKeySpec keySpec = new SecretKeySpec(key, algorithm);
            Cipher cipher = Cipher.getInstance(transformation);
            SecureRandom random = new SecureRandom();
            cipher.init(isEncrypt ? Cipher.ENCRYPT_MODE : Cipher.DECRYPT_MODE, keySpec, random);
            return cipher.doFinal(data);
        } catch (Throwable e) {
            e.printStackTrace();
        }
        return null;
    }
}