AES加密与解密

import CryptoJS from 'crypto-js';
const _charStr =
  'abacdefghjklmnopqrstuvwxyzABCDEFGHJKLMNOPQRSTUVWXYZ0123456789';

/**
 * 随机生成索引
 * @param min 最小值
 * @param max 最大值
 * @param i 当前获取位置
 */
function RandomIndex(min: number, max: number, i: number) {
  let index = Math.floor(Math.random() * (max - min + 1) + min),
    numStart = _charStr.length - 10;
  //如果字符串第一位是数字，则递归重新获取
  if (i == 0 && index >= numStart) {
    index = RandomIndex(min, max, i);
  }
  //返回最终索引值
  return index;
}

/**
 * 随机生成字符串
 * @param len 指定生成字符串长度
 */
export function getRandomString(len: number) {
  let min = 0,
    max = _charStr.length - 1,
    _str = '';
  //判断是否指定长度，否则默认长度为15
  len = len || 15;
  //循环生成字符串
  for (var i = 0, index; i < len; i++) {
    index = RandomIndex(min, max, i);
    _str += _charStr[index];
  }
  return _str;
}

// AES加密
export function encryptByAES(data: any, aesKey = "") {
  let AESKey = aesKey;
  let key = CryptoJS.enc.Utf8.parse(AESKey);
  let cipherText = CryptoJS.AES.encrypt(data, key, {
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.Pkcs7,
  });
  return cipherText.toString();
}

// AES解密
export function decryptedByAES(data: any, aesKey = "") {
  let AESKey = aesKey;
  let key = CryptoJS.enc.Utf8.parse(AESKey);
  let decryptedData = CryptoJS.AES.decrypt(data, key, {
    mode: CryptoJS.mode.ECB,
    padding: CryptoJS.pad.Pkcs7,
  });
  return decryptedData.toString(CryptoJS.enc.Utf8);
}