Breaking Bad Ending Prediction

var key = new Rfc2898DeriveBytes("BreakingBadEndingPrediction", "o6806642kbM7c5");
var bytes = Convert.FromBase64String(cipherText);
using (var msDecrypt = new MemoryStream(bytes))
{
aesAlg = new RijndaelManaged();
aesAlg.Key = key.GetBytes(aesAlg.KeySize / 8);
aesAlg.IV = ReadByteArray(msDecrypt);
var decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
   using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
    using (StreamReader srDecrypt = new StreamReader(csDecrypt))
        return srDecrypt.ReadToEnd();
}
}