3DES Decrypt return blank.

[yriadie]

Hi All,

I have an issue for decrypting the hex string using 3des.

var hex_string = '55b1230381f090de' 
\\decrypted value shoud be = o6PaoG6O
var key_string = '123456781234567812345678'

const crypted = CryptoJS.enc.Hex.parse(hex_string);
var decrypt = CryptoJS.TripleDES.decrypt(crypted,key_string);
console.log("decrypted string : ", decrypt.toString(CryptoJS.enc.Utf8));

and it returns a blank on the console. looking forward to your help ...

[xiaohuoni]

对密码明文先进行 base64 加密，如密码 22 加之后 MjI= 然后对加密后的密文进行 3DES 加密，密码：123456789012345678901234 ，偏移量： 12345678 ，得到最后密文 1DKCnPsI/FQ=

import CryptoJS from 'crypto-js';

function encode3DES(psw: string): string {
  const edsKey = '123456789012345678901234'; // 密码
  const edsIv = '12345678'; // 偏移量
  const str = CryptoJS.enc.Utf8.parse(psw);
  const baseStr = CryptoJS.enc.Base64.stringify(str);
  const KeyHex = CryptoJS.enc.Utf8.parse(edsKey);
  const baseStrUtf = CryptoJS.enc.Utf8.parse(baseStr);
  const encrypted = CryptoJS.TripleDES.encrypt(baseStrUtf,
    KeyHex,
    {
      mode: CryptoJS.mode.CBC,
      padding: CryptoJS.pad.Pkcs7,
      iv: CryptoJS.enc.Utf8.parse(edsIv)
    });
  return encrypted.toString();
}