在线生成生成RSA密钥对：/netrsakeypair
RSA公钥加密解密：/cryptrsapubkey
下载jsencrypt
cnpm i -S jsencrypt
引入jsencrypt
import { JSEncrypt } from "jsencrypt";
基本使用：
注意：要加密的数据必须是字符串！！
提示：给公钥直接用双引号“”引起来后可能要手动删掉每行末尾多余的空格，有点麻烦，此时可以直接用``来引。只是这样可能排版显示不太好看
testRSA() {let publicKey ="-----BEGIN PUBLIC KEY-----MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQC4aWAgASppilGGGPv6wdCp4AqTRbQPEMxU1mNwBXmP6v0hp2eHo8LMhjjM4IwzdzOnwyTR6v5YlznBb90cWKsr/DP1IdSI9ox7M7FCHGfURfLp/mGRvNLnJ5ds7YD+35rP0wLMZhNbkXHs3HMYOY96XnSE7bfcWkLiRrwiCrqLdQIDAQAB-----END PUBLIC KEY-----"; // 从后台获取公钥let data = JSON.stringify({ username: "zhangsan", password: 123 });// let data = "hello world";// let data = 123 + "";//必须传字符串console.log("加密前：", data);let encryptor = new JSEncrypt(); encryptor.setPublicKey(publicKey); let data_encrypted = encryptor.encrypt(data);console.log("加密后：", data_encrypted);let privateKey ="-----BEGIN PRIVATE KEY-----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-----END PRIVATE KEY-----";let decryptor = new JSEncrypt();decryptor.setPrivateKey(privateKey);console.log("解密后:", decryptor.decrypt(data_encrypted));}
通常公钥由服务端提供，这里以koa2作为服务端来测试
首先koa2中安装node-rsa:
cnpm i -S node-rsa
服务端
const router = require('koa-router')()router.prefix('/test')router.get('/', (ctx, next) => {ctx.body = 'this is a users response!'})const NodeRSA = require('node-rsa');const key = new NodeRSA({ b: 1024 });//密钥长度1024位key.setOptions({ encryptionScheme: 'pkcs1' });//指定加密格式.不改格式得话可能会报错router.get('/publicKey', async (ctx, next) => {let publicKey = key.exportKey('public');//生成公钥// let privateKey = key.exportKey('private');//生成私钥ctx.body = publicKey;});router.post('/decryption', async (ctx, next) => {let { value } = ctx.request.body;const decrypted = key.decrypt(value, 'utf8');console.log('服务端解密: ', decrypted);ctx.body = { message: "服务端获取到加密数据" };});module.exports = router
客户端：
<!--main--><template><div><el-button @click="rsaEncryptData()">rsaEncryptData</el-button></div></template><script>import { JSEncrypt } from "jsencrypt";import axios from "axios";export default {methods: {async rsaEncryptData() {//获取公钥let { data: publicKey } = await axios.get("/api/test/publicKey");console.log("公钥：", publicKey);// 加密内容。目前测试出来嵌套对象超过3层rsa就加密不了了const formData = {username: "李疆",password: 123,};let encryptor = new JSEncrypt();encryptor.setPublicKey(publicKey);let encrypted = encryptor.encrypt(JSON.stringify(formData));console.log("rsa加密后：", encrypted);let result = await axios.post("/api/test/decryption", {value: encrypted,});console.log("result:", result);},},};</script>
结果：
