Javascript 加密解密方法

Posted 2023-03-28 始識

本文链接 https://www.cnblogs.com/zichliang/p/17265960.html

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

具体就不多介绍了直接上官网
https://www.npmjs.com/package/crypto-js

准备工作

安装

在终端中输入如下命令行：

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

npm install node-rsa

// 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
TyLS08mCGNGQxEhkEttFAiEA5e7bvnrSNh1lcF/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)