/*
* DES3.java
* Copyright (c) 2015
* All rights reserved.
* ---------------------------
* 2015年3月30日 Created
*/
package com.mango.p2p.utils;
import java.security.Key;
import javax.crypto.Cipher;
import javax.crypto.SecretKeyFactory;
import javax.crypto.spec.DESedeKeySpec;
import javax.crypto.spec.IvParameterSpec;
/**
*
* DES3加解密
*
* @author chaizhilei
* @version 1.0 2015年3月30日
*
*/
public class DES3 {
// 密钥
private final static String secretKey = "jinrong-online.com-app-c";
// 向量
private final static String iv = "01234567";
// 加解密统一使用的编码方式
private final static String encoding = "utf-8";
/**
* 3DES加密
*
* @param plainText
* 普通文本
* @return
* @throws Exception
*/
public static String encode(String plainText) throws Exception {
Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes());
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
deskey = keyfactory.generateSecret(spec);
Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding");
IvParameterSpec ips = new IvParameterSpec(iv.getBytes());
cipher.init(Cipher.ENCRYPT_MODE, deskey, ips);
byte[] encryptData = cipher.doFinal(plainText.getBytes(encoding));
return Base64.encodeToString(encryptData, Base64.DEFAULT);
}
/**
* 3DES解密
*
* @param encryptText
* 加密文本
* @return
* @throws Exception
*/
public static String decode(String encryptText) throws Exception {
Key deskey = null;
DESedeKeySpec spec = new DESedeKeySpec(secretKey.getBytes());
SecretKeyFactory keyfactory = SecretKeyFactory.getInstance("desede");
deskey = keyfactory.generateSecret(spec);
Cipher cipher = Cipher.getInstance("desede/CBC/PKCS5Padding");
IvParameterSpec ips = new IvParameterSpec(iv.getBytes());
cipher.init(Cipher.DECRYPT_MODE, deskey, ips);
byte[] decryptData = cipher.doFinal(Base64.decode(encryptText, Base64.DEFAULT));
return new String(decryptData, encoding);
}
public static void main(String[] args) {
try {
String jiami = encode("ABC");
System.out.println("加密后的结果" + jiami);
String jiemi = decode(jiami);
System.out.println("解密结果" + jiemi);
} catch (Exception e) {
// TODO Auto-generated catch block
e.printStackTrace();
}
}
}
注意：
一定要确保服务器端的密文和客户端的密文是一样的