title: Use Pkcs5 padding With AES encryption in Cryptojs
body: <p>I just need to use cryptojs AES encryption but with padding Pkcs5 which i can not find in Cryptjs document, i want to do this because it is desired from the backend.
  it worked fine with Pkcs7 and cypher mode ECB, how to convert this function to work with Pkcs5</p>
  
  <pre><code>encryptByAES: function (secretPwd) {
      var keyHex = CryptoJS.enc.Utf8.parse(this.encryption_key);
      var encrypted = CryptoJS.AES.encrypt(secretPwd, keyHex, {
          mode: CryptoJS.mode.ECB,
          padding: CryptoJS.pad.Pkcs7
      });
      console.log('encryptByAES key: ',encrypted.toString());
      return encrypted.toString();
  }
  </code></pre>