借助 cryptojs实现 AES 加解密

const CryptoJS = require("crypto-js");
// CBC 
const key = CryptoJS.enc.Utf8.parse("qsc6d2ir3asvhfer"); // CBC使用16位加密
const iv = CryptoJS.enc.Utf8.parse("okmcs9v4a2sd2g1e");
/**
 * 解密方法
 * @param {*} word
 * @returns
 */
function Decrypt(word) {
  let decrypt = CryptoJS.AES.decrypt(word, key, {
    iv: iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7,
  });
  let decryptedStr = decrypt.toString(CryptoJS.enc.Utf8);
  return decryptedStr.toString();
}

/**
 * 加密方法
 * @param {*} word
 * @returns
 */
function Encrypt(word) {
  let encrypted = CryptoJS.AES.encrypt(word, key, {
    iv: iv,
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7,
  });
  return encrypted.toString();
}

console.log("Encrypt(CBC): ", Encrypt("AAA-CCC-VVV"));
console.log("Decrypt(CBC): ", Decrypt("uemv9PD6Cs4FXS4Lh58KNg=="));

// ECB
const secretKey = "abcdefgh12345678ancde8gh1234f673qsaawfs9562" // ECB 使用43位字符串
/**
 * AES-256-ECB对称加密
 * @param text {string} 要加密的明文
 * @returns {string} 加密后的密文，Base64格式
 */
function AES_ECB_ENCRYPT(text) {
  var keyHex = CryptoJS.enc.Base64.parse(secretKey);
  var messageHex = CryptoJS.enc.Utf8.parse(text);
  var encrypted = CryptoJS.AES.encrypt(messageHex, keyHex, {
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.Pkcs7,
  });
  return encrypted.toString();
}

/**
 * AES-256-ECB对称解密
 * @param textBase64 {string} 要解密的密文，Base64格式
 * @returns {string} 解密后的明文
 */
function AES_ECB_DECRYPT(textBase64) {
  var keyHex = CryptoJS.enc.Base64.parse(secretKey);
  var decrypt = CryptoJS.AES.decrypt(textBase64, keyHex, {
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.Pkcs7,
  });
  return CryptoJS.enc.Utf8.stringify(decrypt);
}
console.log('------------------------------------');
console.log("Encrypt(ECB): ", AES_ECB_ENCRYPT("AAA-CCC-VVV"));
console.log("Decrypt(ECB): ", AES_ECB_DECRYPT("tOcm8jo1ZHSGtnscDeAlVg=="));