运行环境:
Java 版本 1.8
Spring Boot 版本: 2.2.13.RELEASE
目前登录接口密码是明文传输 为了更高安全性 我准备调整为加密方式传输( 这里选择Rsa加密算法) 并分享下编写过程
更改前
?更改后
?
大概加密流程:
- 后台生成随机公钥私钥
- 前台拿到公钥?集成jsencrypt实现密码加密
- 传输加密后的密码给后台
- 后台通过私钥对加密后的密码进行解密
若依详细登陆流程<<<可以看这里
若依官方的加密方法<<<原本是固定公私秘钥 我改为了随机生成
篇幅过长『请』耐心看完哦😋 有什么问题可以联系我~
目录
后台改动
首先新建RsaUtils类
import org.apache.commons.codec.binary.Base64;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.annotation.Bean;
import org.springframework.stereotype.Component;
import javax.crypto.Cipher;
import java.security.*;
import java.security.interfaces.RSAPrivateKey;
import java.security.interfaces.RSAPublicKey;
import java.security.spec.PKCS8EncodedKeySpec;
import java.security.spec.X509EncodedKeySpec;
@Component
public class RsaUtils {
// Rsa 私钥 也可固定秘钥对 若依原写法(不安全)
public static String privateKeys = "";
private static String publicKeyStr = "";
private static String privateKeyStr = "";
private static final RsaKeyPair rsaKeyPair = new RsaKeyPair();
private static final Logger logger = LoggerFactory.getLogger(MapUtils.class);
/**
* 私钥解密
*
* @param text 待解密的文本
* @return 解密后的文本
*/
public static String decryptByPrivateKey(String text) throws Exception {
// logger.info(rsaKeyPair.getPrivateKey());
return decryptByPrivateKey(rsaKeyPair.getPrivateKey(), text);
}
/**
* 公钥解密
*
* @param publicKeyString 公钥
* @param text 待解密的信息
* @return 解密后的文本
*/
public static String decryptByPublicKey(String publicKeyString, String text) throws Exception {
X509EncodedKeySpec x509EncodedKeySpec = new X509EncodedKeySpec(Base64.decodeBase64(publicKeyString));
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PublicKey publicKey = keyFactory.generatePublic(x509EncodedKeySpec);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.DECRYPT_MODE, publicKey);
byte[] result = cipher.doFinal(Base64.decodeBase64(text));
return new String(result);
}
/**
* 私钥加密
*
* @param privateKeyString 私钥
* @param text 待加密的信息
* @return 加密后的文本
*/
public static String encryptByPrivateKey(String privateKeyString, String text) throws Exception {
PKCS8EncodedKeySpec pkcs8EncodedKeySpec = new PKCS8EncodedKeySpec(Base64.decodeBase64(privateKeyString));
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PrivateKey privateKey = keyFactory.generatePrivate(pkcs8EncodedKeySpec);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, privateKey);
byte[] result = cipher.doFinal(text.getBytes());
return Base64.encodeBase64String(result);
}
/**
* 私钥解密
*
* @param privateKeyString 私钥
* @param text 待解密的文本
* @return 解密后的文本
*/
public static String decryptByPrivateKey(String privateKeyString, String text) throws Exception {
PKCS8EncodedKeySpec pkcs8EncodedKeySpec5 = new PKCS8EncodedKeySpec(Base64.decodeBase64(privateKeyString));
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PrivateKey privateKey = keyFactory.generatePrivate(pkcs8EncodedKeySpec5);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.DECRYPT_MODE, privateKey);
byte[] result = cipher.doFinal(Base64.decodeBase64(text));
return new String(result);
}
/**
* 公钥加密
*
* @param publicKeyString 公钥
* @param text 待加密的文本
* @return 加密后的文本
*/
public static String encryptByPublicKey(String publicKeyString, String text) throws Exception {
X509EncodedKeySpec x509EncodedKeySpec2 = new X509EncodedKeySpec(Base64.decodeBase64(publicKeyString));
KeyFactory keyFactory = KeyFactory.getInstance("RSA");
PublicKey publicKey = keyFactory.generatePublic(x509EncodedKeySpec2);
Cipher cipher = Cipher.getInstance("RSA");
cipher.init(Cipher.ENCRYPT_MODE, publicKey);
byte[] result = cipher.doFinal(text.getBytes());
return Base64.encodeBase64String(result);
}
/**
* 构建RSA密钥对
*
* @return 生成后的公私钥信息
*/
@Bean
public void generateKeyPair() throws NoSuchAlgorithmException, NoSuchProviderException {
KeyPairGenerator keyPairGenerator = KeyPairGenerator.getInstance("RSA");
keyPairGenerator.initialize(1024);
KeyPair keyPair = keyPairGenerator.generateKeyPair();
RSAPublicKey rsaPublicKey = (RSAPublicKey) keyPair.getPublic();
RSAPrivateKey rsaPrivateKey = (RSAPrivateKey) keyPair.getPrivate();
String publicKeyString = Base64.encodeBase64String(rsaPublicKey.getEncoded());
String privateKeyString = Base64.encodeBase64String(rsaPrivateKey.getEncoded());
rsaKeyPair.setPrivateKey(privateKeyString);
rsaKeyPair.setPublicKey(publicKeyString);
publicKeyStr = publicKeyString;
privateKeyStr = privateKeyString;
}
public static String getPublicKey() {
return publicKeyStr;
}
public static String getPrivateKey() {
return privateKeyStr;
}
public static RsaKeyPair rsaKeyPair() {
return rsaKeyPair;
}
/**
* RSA密钥对对象
*/
public static class RsaKeyPair {
private String publicKey;
private String privateKey;
public void setPublicKey(String publicKey) {
this.publicKey = publicKey;
}
public void setPrivateKey(String privateKey) {
this.privateKey = privateKey;
}
public RsaKeyPair() {
}
public RsaKeyPair(String publicKey, String privateKey) {
this.publicKey = publicKey;
this.privateKey = privateKey;
}
public String getPublicKey() {
return publicKey;
}
public String getPrivateKey() {
return privateKey;
}
}
}
?
RsaUtils添加了@Component注解 generateKeyPair()构建密钥对添加了@Bean注解 在项目启动时通过@Bean的方式将普通类事例化到spring容器中 所以在系统启动后 每次调用接口会是一样的公私秘钥 每次重启后公私钥不同
在controller层添加获取公钥接口
/**
* 获取公钥 前端用来密码加密
*
* @return
*/
@GetMapping("/publicKey")
public RsaUtils.RsaKeyPair publicKey() {
//便于测试 公私秘钥都传了 可改为只传公钥
//RsaUtils.RsaKeyPair rsaKeyPair = new RsaUtils.RsaKeyPair();
//rsaKeyPair.setPublicKey(RsaUtils.getPublicKey());
//return rsaKeyPair;
return RsaUtils.rsaKeyPair();
}登录方法SysLoginService类修改(重点)
测试内部会调用authenticationManager.authenticate()对账号和密码做验证 具体细节推荐看原代码
最终会调用UserDetailsServiceImpl.loadUserByUsername()方法 若依重写了此方法
authentication = authenticationManager.authenticate(new UsernamePasswordAuthenticationToken(username, RsaUtils.decryptByPrivateKey(password)));重置密码接口要也需要更改!!不要忘记啦
/**
* 重置密码
*/
@Log(title = "个人信息", businessType = BusinessType.UPDATE)
@PutMapping("/updatePwd")
public AjaxResult updatePwd(String oldPassword, String newPassword) throws Exception {
LoginUser loginUser = tokenService.getLoginUser(ServletUtils.getRequest());
String userName = loginUser.getUsername();
//加密后的
String password = loginUser.getPassword();
//解密
oldPassword = RsaUtils.decryptByPrivateKey(oldPassword);
newPassword = RsaUtils.decryptByPrivateKey(newPassword);
//拿原密码和加密后的解密
if (!SecurityUtils.matchesPassword(oldPassword, password)) {
return AjaxResult.error("修改密码失败，旧密码错误");
}
if (SecurityUtils.matchesPassword(newPassword, password)) {
return AjaxResult.error("新密码不能与旧密码相同");
}
if (userService.resetUserPwd(userName, SecurityUtils.encryptPassword(newPassword)) > 0) {
// 更新缓存用户密码
loginUser.getUser().setPassword(SecurityUtils.encryptPassword(newPassword));
tokenService.setLoginUser(loginUser);
return AjaxResult.success();
}
return AjaxResult.error("修改密码异常，请联系管理员");
}最后在SecurityConfig类里添加白名单
/**
* anonymous() 允许匿名用户访问,不允许已登入用户访问
* permitAll() 不管登入,不登入 都能访问
*/
.antMatchers("/publicKey").permitAll()anonymous()和permitAll()权限是个坑 大家注意
至此后台工作已完成 挪步前端(没错 前后端都是我写的😭)
前端改动
login.js添加获取公钥接口路径
// 获取key
export function getPublicKey() {
return request({
url: '/publicKey',
method: 'get',
})
}user.js更改登陆方法
actions: {
getPublicKey() {
return new Promise((resolve, reject) => {
getPublicKey()
.then(res => {
resolve(res)
})
.catch(error => {
reject(error)
})
})
},
// 登录
Login({ commit, dispatch }, userInfo) {
return new Promise((resolve, reject) => {
dispatch('getPublicKey').then(res => {
let publicKey = res.publicKey
const username = userInfo.username.trim()
//调用加密方法(传密码和公钥)
const password = encrypt(userInfo.password, publicKey)
const code = userInfo.code
const uuid = userInfo.uuid
login(username, password, code, uuid)
.then(res => {
setToken(res.token)
commit('SET_TOKEN', res.token)
resolve()
})
.catch(error => {
reject(error)
})
})
})
},resetPwd.vue更改修改密码的页面
methods: {
getPublicKey() {
return new Promise((resolve, reject) => {
getPublicKey()
.then(res => {
resolve(res)
})
.catch(error => {
reject(error)
})
})
},
submit() {
this.$refs["form"].validate(valid => {
if (valid) {
this.getPublicKey().then(res=>{
let publicKey = res.publicKey
console.log("res.publicKey",res.publicKey)
const oldPassword = encrypt(this.user.oldPassword, publicKey)
const newPassword = encrypt(this.user.newPassword, publicKey)
updateUserPwd(oldPassword, newPassword).then(
response => {
this.msgSuccess("修改成功");
}
);
})
}
});
},
close() {
this.$store.dispatch("tagsView/delView", this.$route);
this.$router.push({ path: "/index" });
}
}JSEncrypt.js更改加解密方法
import JSEncrypt from 'jsencrypt/bin/jsencrypt.min'
// 密钥对生成 http://web.chacuo.net/netrsakeypair
//这里注掉了原来固定的公私钥
//const publicKey = ''
//const privateKey = ''
// 加密
export function encrypt(txt, publicKey) {
const encryptor = new JSEncrypt()
encryptor.setPublicKey(publicKey) // 设置公钥
return encryptor.encrypt(txt) // 对数据
}
// 解密(暂无使用)
export function decrypt(txt) {
const encryptor = new JSEncrypt()
encryptor.setPrivateKey(privateKey) // 设置私钥
return encryptor.decrypt(txt) // 对数据进行解密
}登陆验证下吧~
有问题欢迎留言讨论😋
