JavaScript实现DES加密解密

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摘要：js-des-encrypt

JavaScript 实现DES加密解密

1. 引入依赖crypto-js

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npm install crypto-js
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const CryptoJS = require('crypto-js');

或者

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<script src="https://cdn.bootcdn.net/ajax/libs/crypto-js/4.0.0/crypto-js.min.js"></script>

2. 编写代码

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//DES加密
function encryptByDES(message, key) {
  var keyHex = CryptoJS.enc.Utf8.parse(key);
  var encrypted = CryptoJS.DES.encrypt(message, keyHex, {
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.Pkcs7
  });
  return encrypted.toString();
}

//DES解密
function decryptByDES(ciphertext, key) {
  var keyHex = CryptoJS.enc.Utf8.parse(key);
  var decrypted = CryptoJS.DES.decrypt({
    ciphertext: CryptoJS.enc.Base64.parse(ciphertext)
  }, keyHex, {
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.Pkcs7
  });
  return decrypted.toString(CryptoJS.enc.Utf8);
}

// 加密方法测试
const key = '1sdfa_123)(*';
const en = encryptByDES("admin", key);
console.log(en);   //  vV2ssD+Fb1I=
const de = decryptByDES(en, key);
console.log(de);