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Javascript 加密解密方法

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Javascript 加密解密方法

Javascript 和 我之前发的 python加密
以及 go加密
解密不一样 不需要导那么多的库
只需要安装几个库 其中需要了解最多的 crypto-js

https://www.npmjs.com/package/crypto-js

准备工作

安装

npm install crypto-js --save-dev
npm install md5 --save-dev

一些常见的built-in 函数加密

unescape

unescape( 函数可对通过 escape( 编码的字符串进行解码。

let e = escape("始識"
console.log(e // %u59CB%u8B58
let u = unescape(e
console.log(u // 始識

URL编码与解码

let e = encodeURI("https://始識的博客"
console.log(e // https://%E5%A7%8B%E8%AD%98%E7%9A%84%E5%8D%9A%E5%AE%A2
let u = decodeURI(e
console.log(u // https://始識的博客

fromCharCode 将 Unicode 编码转为一个字符:

var n = String.fromCharCode(65;
// A


[101,118,97,108].map(item=>{
    return String.fromCharCode(item
}
 ['e', 'v', 'a', 'l']

Base64

btoa atob

let e = btoa("https://www.cnblogs.com/zichliang/p/17265960.html"
console.log(e // // https://%E5%A7%8B%E8%AD%98%E7%9A%84%E5%8D%9A%E5%AE%A2
let u = atob(e
console.log(u // https://www.cnblogs.com/zichliang/p/17265960.html

引用 crypto-js 加密模块

var CryptoJS = require('crypto-js'

function base64Encode( {
  var srcs = CryptoJS.enc.Utf8.parse(text;
  var encodeData = CryptoJS.enc.Base64.stringify(srcs;
  return encodeData
}

function base64Decode( {
  var srcs = CryptoJS.enc.Base64.parse(encodeData;
  var decodeData = srcs.toString(CryptoJS.enc.Utf8;
  return decodeData
}

var text = "https://www.cnblogs.com/zichliang/p/17265960.html"

var encodeData = base64Encode(
var decodeData = base64Decode(

console.log("Base64 编码: ", encodeData
console.log("Base64 解码: ", decodeData

// Base64 编码:  aHR0cHM6Ly93d3cuY25ibG9ncy5jb20vemljaGxpYW5nL3AvMTcyNjU5NjAuaHRtbA==
// Base64 解码:  https://www.cnblogs.com/zichliang/p/17265960.html

MD5

// 引用 crypto-js 加密模块
var CryptoJS = require('crypto-js'

function MD5Test( {
    var text = "https://www.cnblogs.com/zichliang"
    return CryptoJS.MD5(text.toString(
}

console.log(MD5Test(  // 50177badb579733de56b628ae57fb972

PBKDF2

// 引用 crypto-js 加密模块
var CryptoJS = require('crypto-js'

function pbkdf2Encrypt( {
    var text = "https://www.cnblogs.com/zichliang"
    var salt = "1234567"
    // key 长度 128，10 次重复运算
    var encryptedData = CryptoJS.PBKDF2(text, salt, {keySize: 128/32,iterations: 10};
    return encryptedData.toString(
}

console.log(pbkdf2Encrypt(  // bcda4be78de797d8f5067331b1a70d40

SHA1

// 引用 crypto-js 加密模块
var CryptoJS = require('crypto-js'

function SHA1Encrypt( {
    var text = "https://www.cnblogs.com/zichliang"
    return CryptoJS.SHA1(text.toString(;
}

console.log(SHA1Encrypt(  // ca481c13d5af7135b69d11ffb0a443a635fbc307

HMAC

// 引用 crypto-js 加密模块
var CryptoJS = require('crypto-js'

function HMACEncrypt( {
  var text = "https://www.cnblogs.com/zichliang"
  var key = "secret"
  return CryptoJS.HmacMD5(text, key.toString(;
}

console.log(HMACEncrypt(// 20ca7a63f1f4a7047ffd6b722b45319a

DES

// 引用 crypto-js 加密模块
var CryptoJS = require('crypto-js'

function desEncrypt( {
  var key = CryptoJS.enc.Utf8.parse(desKey,
      iv = CryptoJS.enc.Utf8.parse(desIv,
      srcs = CryptoJS.enc.Utf8.parse(text,
      // CBC 加密模式，Pkcs7 填充方式
      encrypted = CryptoJS.DES.encrypt(srcs, key, {
        iv: iv,
        mode: CryptoJS.mode.CBC,
        padding: CryptoJS.pad.Pkcs7
      };
  return encrypted.toString(;
}

function desDecrypt( {
  var key = CryptoJS.enc.Utf8.parse(desKey,
      iv = CryptoJS.enc.Utf8.parse(desIv,
      srcs = encryptedData,
      // CBC 加密模式，Pkcs7 填充方式
      decrypted = CryptoJS.DES.decrypt(srcs, key, {
        iv: iv,
        mode: CryptoJS.mode.CBC,
        padding: CryptoJS.pad.Pkcs7
      };
  return decrypted.toString(CryptoJS.enc.Utf8;
}

var text = "https://www.cnblogs.com/zichliang"       // 待加密对象
var desKey = "0123456789ABCDEF"    // 密钥
var desIv = "0123456789ABCDEF"    // 初始向量

var encryptedData = desEncrypt(
var decryptedData = desDecrypt(

console.log("加密字符串: ", encryptedData
console.log("解密字符串: ", decryptedData

// 加密字符串:  p+4ovmk1n5YwN3dq5y8VqhngLKW//5MM/qDgtj2SOC6TpJaFgSKEVg==
// 解密字符串:   https://www.cnblogs.com/zichliang

3DES

// 引用 crypto-js 加密模块
var CryptoJS = require('crypto-js'

function tripleDesEncrypt( {
  var key = CryptoJS.enc.Utf8.parse(desKey,
      iv = CryptoJS.enc.Utf8.parse(desIv,
      srcs = CryptoJS.enc.Utf8.parse(text,
      // ECB 加密方式，Iso10126 填充方式
      encrypted = CryptoJS.TripleDES.encrypt(srcs, key, {
        iv: iv,
        mode: CryptoJS.mode.ECB,
        padding: CryptoJS.pad.Iso10126
      };
  return encrypted.toString(;
}

function tripleDesDecrypt( {
  var key = CryptoJS.enc.Utf8.parse(desKey,
      iv = CryptoJS.enc.Utf8.parse(desIv,
      srcs = encryptedData,
      // ECB 加密方式，Iso10126 填充方式
      decrypted = CryptoJS.TripleDES.decrypt(srcs, key, {
        iv: iv,
        mode: CryptoJS.mode.ECB,
        padding: CryptoJS.pad.Iso10126
      };
  return decrypted.toString(CryptoJS.enc.Utf8;
}

var text = "https://www.cnblogs.com/zichliang"       // 待加密对象
var desKey = "0123456789ABCDEF"    // 密钥
var desIv = "0123456789ABCDEF"    // 偏移量

var encryptedData = tripleDesEncrypt(
var decryptedData = tripleDesDecrypt(

console.log("加密字符串: ", encryptedData
console.log("解密字符串: ", decryptedData

// 加密字符串:   pl/nNfpIrejwK+/X87VmGZIbS3kOB+IpFcx/97wpR4AO6q9HGjxb4w==
// 解密字符串:   https://www.cnblogs.com/zichliang

AES

// 引用 crypto-js 加密模块
var CryptoJS = require('crypto-js'

function aesEncrypt( {
    var key = CryptoJS.enc.Utf8.parse(aesKey,
        iv = CryptoJS.enc.Utf8.parse(aesIv,
        srcs = CryptoJS.enc.Utf8.parse(text,
        // CBC 加密方式，Pkcs7 填充方式
        encrypted = CryptoJS.AES.encrypt(srcs, key, {
            iv: iv,
            mode: CryptoJS.mode.CBC,
            padding: CryptoJS.pad.Pkcs7
        };
    return encrypted.toString(;
}

function aesDecrypt( {
    var key = CryptoJS.enc.Utf8.parse(aesKey,
        iv = CryptoJS.enc.Utf8.parse(aesIv,
        srcs = encryptedData,
        // CBC 加密方式，Pkcs7 填充方式
        decrypted = CryptoJS.AES.decrypt(srcs, key, {
            iv: iv,
            mode: CryptoJS.mode.CBC,
            padding: CryptoJS.pad.Pkcs7
        };
    return decrypted.toString(CryptoJS.enc.Utf8;
}

var text = "https://www.cnblogs.com/zichliang"       // 待加密对象
var aesKey = "0123456789ABCDEF"   // 密钥，16 倍数
var aesIv = "0123456789ABCDEF"    // 偏移量，16 倍数

var encryptedData = aesEncrypt(
var decryptedData = aesDecrypt(

console.log("加密字符串: ", encryptedData
console.log("解密字符串: ", decryptedData

// 加密字符串:  /q8i+1GN8yfzIb8CaEJfDOfDQ74in+XzQZYBtKF2wkAB6dM1qbBZ3HJVlY+kHDE3
// 解密字符串:  https://www.cnblogs.com/zichliang

RC4

// 引用 crypto-js 加密模块
var CryptoJS = require('crypto-js'

function RC4Encrypt( {
    return CryptoJS.RC4.encrypt(text, key.toString(;
}

function RC4Decrypt({
    return CryptoJS.RC4.decrypt(encryptedData, key.toString(CryptoJS.enc.Utf8;
}

var text = "https://www.cnblogs.com/zichliang"
var key = "12345678ASDFG"

var encryptedData = RC4Encrypt(
var decryptedData = RC4Decrypt(

console.log("加密字符串: ", encryptedData
console.log("解密字符串: ", decryptedData

// 加密字符串:  U2FsdGVkX19/bT2W57mzjwoF5Fc3Zb4WiyDU+MiNMmHfdJvZeScl0EW9yJWCPiRrsA==
// 解密字符串:  https://www.cnblogs.com/zichliang

Rabbit

// 引用 crypto-js 加密模块
var CryptoJS = require('crypto-js'

function rabbitEncrypt( {
    return CryptoJS.Rabbit.encrypt(text, key.toString(;
}

function rabbitDecrypt( {
    return CryptoJS.Rabbit.decrypt(encryptedData, key.toString(CryptoJS.enc.Utf8;
}

var text = "https://www.cnblogs.com/zichliang/p/16653303.html"
var key = "1234567ASDFG"

var encryptedData = rabbitEncrypt(
var decryptedData = rabbitDecrypt(

console.log("加密字符串: ", encryptedData
console.log("解密字符串: ", decryptedData

// 加密字符串:  U2FsdGVkX1/pYbHvbNff3/RNpso4yRKIX0XDFta8hoLNxe52K8HSmF+XV8ayYqucTKVPP6AJtGczXS7U9kkxHnw=
// 解密字符串:  https://www.cnblogs.com/zichliang/p/16653303.html

RSA

使用 node-rsa

需要安装一个库

// 引用 node-rsa 加密模块
var NodeRSA = require('node-rsa';

function rsaEncrypt( {
    pubKey = new NodeRSA(publicKey,'pkcs8-public';
    var encryptedData = pubKey.encrypt(text, 'base64';
    return encryptedData
}

function rsaDecrypt( {
    priKey = new NodeRSA(privatekey,'pkcs8-private';
    var decryptedData = priKey.decrypt(encryptedData, 'utf8';
    return decryptedData
}

var key = new NodeRSA({b: 512};                    //生成512位秘钥
var publicKey = key.exportKey('pkcs8-public';    //导出公钥
var privatekey = key.exportKey('pkcs8-private';  //导出私钥
var text = "https://www.cnblogs.com/zichliang/p/16653303.html"

var encryptedData = rsaEncrypt(
var decryptedData = rsaDecrypt(

console.log("公钥:\n", publicKey
console.log("私钥:\n", privatekey
console.log("加密字符串: ", encryptedData
console.log("解密字符串: ", decryptedData

/*
公钥:
 -----BEGIN PUBLIC KEY-----
MFwwDQYJKoZIhvcNAQEBBQADSwAwSAJBAN7JoMDNvvpB/po2OMSeSKsromfP5EyI
0fAz6XDVwqdTUBwwAArLlqIzmVNK0yi4nlbj5eF+O8ZjRkRQ6xKP/CMCAwEAAQ==
-----END PUBLIC KEY-----
私钥:
 -----BEGIN PRIVATE KEY-----
MIIBVAIBADANBgkqhkiG9w0BAQEFAASCAT4wggE6AgEAAkEA3smgwM2++kH+mjY4
xJ5IqyuiZ8/kTIjR8DPpcNXCp1NQHDAACsuWojOZU0rTKLieVuPl4X47xmNGRFDr
Eo/8IwIDAQABAkEArI0Ps6TnIJ9SmZAbYbWSZPjTvYHXuatSpq8eQ+Vb8Ql003G5
Y2FIoWpQX1jQ9/DsxEZ/1u+71bl08z1eONz2KQIhAPgLZOKanhDDaOn5sO7Y2RM3
TyLS08mCGNGQxEhkEttFAiEA5e7bvnrSNh2lcF/QTxkWPGoXb9kxPljm49CfiTS9
PEcCIDzxX7olTwzDVjWWeZhVgxArmK/vqMVrx3lF3lQC8ncZAiBlpY5nSoybd6tc
Xj8MeJ6n3o6112I5mbuYgqXEVhhCCQIgY6vinhOzMF0dX9MNjBm8x1mUCd4XG2TN
QQcOik3RIGw=
-----END PRIVATE KEY-----
加密字符串:  ZolvYwjFqOp1Yldui7rm75mSN5kz7533nc3B3H6xZGQR9v0elhbcjmI9vXaBsgdLNTuyoVk3bfzWfQdeIpvCpcBCTGe1HG9KrSBYDiWJc4vBgVBz8D57/XaS1zjM0kuAJ/ELu4os7XG5lMQbRbFhHXs7zQsIBq6/m2IZdGWx7HjB2jiQBQPMfszdQUOwQA
bM5o7lRvUgdMVaZkEWpOTEybmUX4kxBP5CvNtB86oTRUw+U7Ex7QB8lWj33hoKvh70
解密字符串:  https://www.cnblogs.com/zichliang/p/16653303.html
*/

使用自带模块crypto:

const crypto = require('crypto';
const nodeRSA = require('node-rsa';

// 生成一个1024长度的密钥对
const key = new nodeRSA({b: 1024};
// 导出公钥
const publicKey = key.exportKey('public';
// 导出私钥
const privateKey = key.exportKey('private';

const secret = 'https://www.cnblogs.com/zichliang/p/16653303.html'
// 使用私钥加密，公钥解密
const encrypt = crypto.privateEncrypt(privateKey, Buffer.from(secret;
const decrypt = crypto.publicDecrypt(publicKey, encrypt;

console.log('加密后：', encrypt.toString('base64';
console.log('解密后：', decrypt.toString(;

RSA 长加密

这个加密是真的麻烦，而且还需要导入jsencrypt.min.js
这里贴上 GitHub地址 https://github.com/wangqinglongDo/github_demo/blob/master/libs/jsencrypt.min.js
对了 还需要补环境 而且解密也不是很好用，如果有大佬知道如何解密的 希望在评论区告诉我

var encrypt = new JSEncrypt(;
var publickKey = "-----BEGIN PUBLIC KEY-----\
MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDLFb8qp1vRFvi/qfgi1Wg7Mi8l\
LcpfAc+tgpyD7aFW9QquQVMm/jG1IJZVQ6LsdkI7TiDutMCzOMCBXbdSC9BCIAGA\
L2Sz3cYVlGb1kYSM0ZMcUMIK5eF4Bptke070XHvbi8wArtysJ0l71RHDd786tNbG\
W0hDSw3zAqTErbxFaQIDAQAB\
-----END PUBLIC KEY-----\
"
encrypt.setPublicKey(publickKey;  //设置公钥加密证书
var data = "https://www.cnblogs.com/zichliang/p/17265960.html";
var commonEncodeData = encrypt.encryptLong(data;   // 普通的加密

console.log(commonEncodeData

var cnEscapeData = window.btoa(window.encodeURIComponent(data;  //base64 解密后的加密
var encryptData = encrypt.encryptLong(cnEscapeData;  //获取加密后数据。
console.log(encryptData

编程笔记 » Javascript 加密解密方法

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