Javascript解密C＃AES加密

Question

I'm trying to decrypt a C# encrypt string using javascript,

This is an example of the encryption on my server side

 public class AesCrypt
{
    public static string IV = @"!QAZ2WSX#EDC4RFV";
    public static string Key = @"5TGB&YHN7UJM(IK<5TGB&YHN7UJM(IK<";
    public static string Encrypt(string dectypted)
    {

        byte[] textbytes = ASCIIEncoding.ASCII.GetBytes(dectypted);
        AesCryptoServiceProvider encdec = new AesCryptoServiceProvider();
        encdec.BlockSize = 128;
        encdec.KeySize = 256;
        encdec.Key = ASCIIEncoding.ASCII.GetBytes(Key);
        encdec.IV = ASCIIEncoding.ASCII.GetBytes(IV);
        encdec.Padding = PaddingMode.PKCS7;
        encdec.Mode = CipherMode.CBC;

        ICryptoTransform icrypt = encdec.CreateEncryptor(encdec.Key, encdec.IV);

        byte[] enc = icrypt.TransformFinalBlock(textbytes, 0, textbytes.Length);
        icrypt.Dispose();

        return Convert.ToBase64String(enc);
    }
}

The encryption of "Hello World" is "1i4zI5rB3Df2CYFalsiTwg=="

Now I'm trying to decrypt it using js on my client and get Hello World and this is where I fail,

I'm using <script src="https://cdnjs.cloudflare.com/ajax/libs/crypto-js/3.1.2/rollups/aes.js"></script> in order to decrypt and I watch some of examples over the web (including stackoverflow).

Accoring to some examples over the web this is what I came out of, but it's not returning "Hello World" back.

data = "1i4zI5rB3Df2CYFalsiTwg==";
key = "5TGB&YHN7UJM(IK<5TGB&YHN7UJM(IK<";
iv = "!QAZ2WSX#EDC4RFV";

CryptoJS.AES.decrypt(atob(data), key, {
    iv: atob(iv),
    mode: CryptoJS.mode.CBC,
    padding: CryptoJS.pad.Pkcs7
});

I'm using the same mode and padding, but I'm probably missing something. I'm not that familiar with CryptoJS and I hope someone can help me understand where I went wrong.
Thanks in advance

Answer 1

From the old CryptoJS pages , the Cipher input part:

For the key, when you pass a string, it's treated as a passphrase and used to derive an actual key and IV. Or you can pass a WordArray that represents the actual key. If you pass the actual key, you must also pass the actual IV.

Although you are passing an IV, you do currently put in a string rather than a binary key as word array. I suppose this is the problem as I don't see any other obvious programming mistakes.