Ecrypt/decrypt with CryptoStream

Solution 1:

Thanks to Mathias R. Jassen for the suggestion. Following the working code:

public void Encrypt(Stream input, Stream output)
    {
        Aes aes = Aes.Create();

        aes.Key = Key;
        aes.IV = IV;
        aes.Padding = PaddingMode.PKCS7;
        //aes.Mode = CipherMode.CBC;
        //aes.BlockSize = 128;

        ICryptoTransform aesEncryptor = aes.CreateEncryptor();

        using (CryptoStream cryptoStream = new(output, aesEncryptor, CryptoStreamMode.Write))
        {
            input.CopyTo(cryptoStream);
            cryptoStream.FlushFinalBlock();
        }
    }

and

public void Decrypt(Stream input, Stream output)
    {
        Aes aes = Aes.Create();

        aes.Key = Key;
        aes.IV = IV;
        aes.Padding = PaddingMode.PKCS7;
        //aes.Mode = CipherMode.CBC;
        //aes.BlockSize = 128;

        ICryptoTransform aesDecryptor = aes.CreateDecryptor();

        using (CryptoStream cryptoStream = new(input, aesDecryptor, CryptoStreamMode.Read))
        {
            cryptoStream.CopyTo(output);
            cryptoStream.Close();
        }
        output.Flush();
    }

Please, note the