前端数据的加密和解密--对象解密的坑

作为一个前端菜鸡,今天碰到一个加密解密的坑,浪费了不少时间. 为了报仇,我决定再次拿起我的小本本,君子报仇十年不晚,先记下来.

先说坑,加密解密前端工作中很常见. 之前也加密过密码账户之类的,一切都顺畅无比,比如:

//vue中mounted: function() {let x = encryptDes("123", this.$enkey);//加密let x2 = decryptDes(x, this.$enkey); //解密console.log(x);    console.log(x2);
}

输出结果:(看吧一切都那么顺利)

就在今天当我加密要一个"对象"的时候......出现了问题:

 let obj = {test: 123};console.log(JSON.stringify(obj));let x = encryptDes(JSON.stringify(obj), this.$enkey);let x2 = decryptDes(x, this.$enkey);console.log(x);console.log(x2);

 结果输出了个这么个鬼东西:

 这不科学啊,由于菜鸡是真的菜,导致我根本没见过这鬼东西,百度完了,丝毫没有线索,菜鸡我开始怀疑人生,突然灵光一现,难道就因为菜鸡我没"对象" ? obj=null了?

问了哈旁边后台的一个同事.说应该字符串的编码之类的问题 ,结果再用url解码解了下真的有结果:(JS中对URL进行转码与解码)

 let obj = {test: 123};console.log(JSON.stringify(obj));let x = encryptDes(JSON.stringify(obj), this.$enkey);let x2 = decryptDes(x, this.$enkey);console.log(x);console.log(x2);console.log(unescape(x2));

果然不是obj=null的事.

附加密的封装:

import cryptoJs from "crypto-js";function stringToHex(str){var val="";for(var i = 0; i < str.length; i++){if(val == "")val = str.charCodeAt(i).toString(16);elseval += "," + str.charCodeAt(i).toString(16);}return val;}//base64加密
export const encryptBase64 = (message)=>{var str = cryptoJs.enc.Utf8.parse(message);var encryptMsg = cryptoJs.enc.Base64.stringify(str);return encryptMsg
}//base64解密
export const decryptBase64 = (message)=>{var decryptMsg = cryptoJs.enc.Base64.parse(message);var parseStr = decryptMsg.toString(cryptoJs.enc.Utf8);return parseStr
}// DES加密密
export const encryptDes = (message, key) => {message = encodeURIComponent(message)key = encodeURIComponent(key)var keyHex = cryptoJs.enc.Utf8.parse(key)var ivHex = cryptoJs.enc.Utf8.parse(key)var option = {iv: ivHex, mode: cryptoJs.mode.CBC, padding: cryptoJs.pad.Pkcs7}var encrypted = cryptoJs.DES.encrypt(message, keyHex, option)var msg = (encrypted.ciphertext.toString())var b=msg.toUpperCase();return (b)
}// DES解密
export const decryptDes = (message, key) => {var keyHex = cryptoJs.enc.Utf8.parse(key)var ivHex = cryptoJs.enc.Utf8.parse(key)var decrypted = cryptoJs.DES.decrypt({ciphertext: cryptoJs.enc.Hex.parse(message)},keyHex,{iv: ivHex,mode: cryptoJs.mode.CBC,padding: cryptoJs.pad.Pkcs7})return decrypted.toString(cryptoJs.enc.Utf8)
}