AES加解密算法

package com.becom.common.utils;

import javax.crypto.Cipher;
import javax.crypto.spec.IvParameterSpec;
import javax.crypto.spec.SecretKeySpec;
import sun.misc.BASE64Decoder;
import sun.misc.BASE64Encoder;

/**

• AES加解密算法
  */

@SuppressWarnings(“restriction”)
public class AESUtil {
// **偏移量
public static final String IV = “1234567812345678”;

/**
 * 加密
 * @param content 需要加密的内容
 * @param password 加***,**必须16位
 * @return
 */
public static String encrypt(String content, String password){
	try {
		byte[] raw = password.getBytes();
		SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
		// 算法/模式/补码方式
		Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
		// 使用CBC模式，需要一个向量iv，可增加加密算法的强度
		IvParameterSpec iv = new IvParameterSpec(IV.getBytes());
		cipher.init(Cipher.ENCRYPT_MODE, skeySpec, iv);
		// 此处使用BASE64做转码功能，同时能起到2次加密的作用。
		byte[] encrypted = cipher.doFinal(content.getBytes());
		return new BASE64Encoder().encode(encrypted);
	}catch(Exception e){
		e.printStackTrace();
	}
	return null;
		
	
}

/**
 * 解密
 * @param content 待解密内容
 * @param password 解***
 * @return
 */
public static String decrypt(String content, String password){
	try {
		byte[] raw = password.getBytes("ASCII");
		SecretKeySpec skeySpec = new SecretKeySpec(raw, "AES");
		Cipher cipher = Cipher.getInstance("AES/CBC/PKCS5Padding");
		IvParameterSpec iv = new IvParameterSpec(IV.getBytes());
		cipher.init(Cipher.DECRYPT_MODE, skeySpec, iv);
		// 先用base64解密
		byte[] encrypted = new BASE64Decoder().decodeBuffer(content);
		byte[] original = cipher.doFinal(encrypted);
		String originalString = new String(original);
		return originalString;
	} catch (Exception e) {
		e.printStackTrace();
	}
	return null;
}

public static void main(String[] args) throws Exception {
	String cKey = "teacher_edu_app_";
	String cSrc = "123456";
	System.out.println(cSrc);
	// 加密
	String enString = AESUtil.encrypt(cSrc, cKey);
	System.out.println("加密后的字串是：" + enString);
	// 解密
	String DeString = AESUtil.decrypt("cyFzF/vlavw5WlgUVb18Gg==", cKey);
	System.out.println("解密后的字串是：" + DeString);
}

}