crypto.js throws Malformed UTF-8 data

[spammads]

When providing the correct passwords I get an exception on

var decrypted = CryptoJS.AES.decrypt(encrypted, key, {
          iv: iv,
          padding: CryptoJS.pad.Pkcs7,
          mode: CryptoJS.mode.CBC
        }).toString(CryptoJS.enc.Utf8);
        return decrypted;

saying

Malformed UTF-8 data

According to this comment maybe it helps to convert encrypted to string

[blairanderson]

can you confirm the fix or send me a link to try it out?

[jjsmck]

Hi

I am also get this error. However I am using a string value
let encrypted = "add_your_encrypted_value"
let key = "1234567890123456789012"
let ivValue = "add_iv_value"
let iv = CryptoJS.enc.Utf8.parse(ivValue)
var decrypted = CryptoJS.AES.decrypt(encrypted, key, {
iv: iv,
padding: CryptoJS.pad.Pkcs7,
mode: CryptoJS.mode.CBC
}).toString(CryptoJS.enc.Utf8);

error : Malformed UTF-8 data

The issue so far that I can tell is that encrypted contains symbol. It be nice for the CryptoJS.enc.Utf8, to check for the symbols and remove it.

[toiladuong]

You can consider my solution here:
https://github.com/brix/crypto-js/issues/271#issuecomment-2342530158