• 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

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

    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

    点击展开
    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

    点击展开
    // 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

    点击展开
    // 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

    点击展开
    // 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

    点击展开
    // 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

    点击展开
    // 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

    点击展开
    // 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

    点击展开
    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)
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  • 原文地址:https://www.cnblogs.com/zichliang/p/17265960.html