public string Operation(CryptoRequest req, bool isDecryption)
{
Chilkat.Crypt2 crypt = new Chilkat.Crypt2
{
CryptAlgorithm = "aes",
CipherMode = "cbc",
KeyLength = 256,
PaddingScheme = 0,
EncodingMode = "hex"
};
var data = Convert.FromBase64String(req.Data64);
crypt.SetSecretKeyViaPassword(req.Password);
var operated = isDecryption ? crypt.DecryptBytes(data) : crypt.EncryptBytes(data);
return(Convert.ToBase64String(operated));
}