在工作中常常遇到密码明文传输这个题目,为了让密码安全些会让加密,现在有个比力方便的AES加密(前端密钥可能存在泄漏风险,应该放到设置项中):
一、前端加密
1、起首引入前端必要用到的js:crypto-js,下载所在:
CryptoJS-v4.1.1
https://www.aliyundrive.com/s/bXP6M8ZxVAD
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2、将 crypto-js 文件放到要引用的路径
3、以下是要引用到的js
- <script src="../static/ajax/libs/captcha/crypto-js.min.js" th:src="@{/ajax/libs/captcha/crypto-js.min.js}"></script>
- <script src="../static/ajax/libs/captcha/ase.min.js" th:src="@{/ajax/libs/captcha/ase.min.js}"></script>
复制代码 4、在注册按钮的点击事件中,设置 key 值和 iv 值,这是加密的设置字段,界说要举行加密的密码 encryptedPwd
- function register() {
- var password = $.common.trim($("input[name='password']").val());
- //AES加密
- var key = "ABCDEFGHIJKL_key";
- var iv = "ABCDEFGHIJKLM_iv";
- var encryptedPwd = aesMinEncrypt(key,iv,password);
- $.ajax({
- type: "post",
- url: ctx + "register",
- data: {
- "password": encryptedPwd,
- ...
- ...
- }
- success: function (res) {}
- });
- }
- function aesMinEncrypt(key, iv, word){
- var _word = CryptoJS.enc.Utf8.parse(word),
- _key = CryptoJS.enc.Utf8.parse(key),
- _iv = CryptoJS.enc.Utf8.parse(iv);
- var encrypted = CryptoJS.AES.encrypt(_word, _key, {
- iv: _iv,
- mode: CryptoJS.mode.CBC,
- padding: CryptoJS.pad.Pkcs7
- });
- return encrypted.toString();
- }
复制代码 二、后端解密
后端解密必要用到一个工具类:AESUtils,里面是解密方法代码如下:
1、添加AESUtils工具类
- package com.wuye.common.utils;
-
- import cn.jpush.api.utils.StringUtils;
- import sun.misc.BASE64Decoder;
-
- import javax.crypto.Cipher;
- import javax.crypto.spec.IvParameterSpec;
- import javax.crypto.spec.SecretKeySpec;
-
- /**
- * TODO
- *
- * @author CSD
- * @date 2022-07-28 14:16
- */
- public class AESUtils {
-
- //密钥 (需要前端和后端保持一致)十六位作为密钥
- private static final String KEY = "ABCDEFGHIJKL_key";
-
- //密钥偏移量 (需要前端和后端保持一致)十六位作为密钥偏移量
- private static final String IV = "ABCDEFGHIJKLM_iv";
-
- //算法
- private static final String ALGORITHMSTR = "AES/CBC/PKCS5Padding";
-
- /**
- * base 64 decode
- * @param base64Code 待解码的base 64 code
- * @return 解码后的byte[]
- * @throws Exception
- */
- public static byte[] base64Decode(String base64Code) throws Exception{
- return StringUtils.isEmpty(base64Code) ? null : new BASE64Decoder().decodeBuffer(base64Code);
- }
-
- /**
- * AES解密
- * @param encryptBytes 待解密的byte[]
- * @return 解密后的String
- * @throws Exception
- */
- public static String aesDecryptByBytes(byte[] encryptBytes) throws Exception {
-
- Cipher cipher = Cipher.getInstance(ALGORITHMSTR);
-
- byte[] temp = IV.getBytes("UTF-8");
- IvParameterSpec iv = new IvParameterSpec(temp);
-
- cipher.init(Cipher.DECRYPT_MODE, new SecretKeySpec(KEY.getBytes(), "AES"), iv);
- byte[] decryptBytes = cipher.doFinal(encryptBytes);
-
- System.out.print(new String(decryptBytes));
- return new String(decryptBytes);
- }
-
- /**
- * 将base 64 code AES解密
- * @param encryptStr 待解密的base 64 code
- * @return 解密后的string
- * @throws Exception
- */
- public static String aesDecrypt(String encryptStr) throws Exception {
- return StringUtils.isEmpty(encryptStr) ? null : aesDecryptByBytes(base64Decode(encryptStr));
- }
-
- //测试一下
- public static void main(String[] args) throws Exception {
- String str = "Q uus tQvLdwtGSldhrtKQ==";
- str = str.replace(" ", "+");
- System.out.println(str);
- aesDecrypt(str);
- }
- }
复制代码 2、在注册方法对 password 举行解密完成加解密操作
- String decrypassword = AESUtils.aesDecrypt(password);
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