private void btnInputFileDecrypt_Click(object sender, RoutedEventArgs e)
{
try
{
OpenFileDialog chooseFileToDecryptFromDialog = new OpenFileDialog();
chooseFileToDecryptFromDialog.Title = "Wybór pliku do odszyfrowania";
chooseFileToDecryptFromDialog.InitialDirectory = @"C:\";
chooseFileToDecryptFromDialog.CheckFileExists = true;
chooseFileToDecryptFromDialog.CheckPathExists = true;
if (chooseFileToDecryptFromDialog.ShowDialog() == DialogResult.OK)
{
textBoxDecryptInputFile.Text = chooseFileToDecryptFromDialog.FileName;
inputFileDecryptPath = textBoxDecryptInputFile.Text;
}
if (inputFileDecryptPath != null)
{
inStr = File.OpenRead(inputFileDecryptPath);
//odczytanie naglowka
using (var ms = new MemoryStream())
{
byte[] buff = new byte[1];
while (true)
{
inStr.Read(buff, 0, 1);
if (buff[0] == (byte)3)
{
break;
}
ms.Write(buff, 0, 1);
}
ms.Position = 0;
XmlSerializer ser = new XmlSerializer(typeof(XmlMetadata));
metadataDecrypt = (XmlMetadata)ser.Deserialize(ms);
}
ComboBoxRecipient.ItemsSource = metadataDecrypt.Recipients;
}
}
catch
{
textBoxDecryptInputFile.Text = "";
// errorMsg = "niepoprawny plik";
}
}
public static byte[] GenerateXmlHeader(List <Recipient> recipients, string keySize, string cipherMode, string iv)
{
XmlMetadata metadata = new XmlMetadata()
{
Algorithm = "AES",
CipherMode = cipherMode,
IV = iv,
KeySize = keySize,
Recipients = recipients
};
byte[] result;
XmlSerializer serializer = new XmlSerializer(typeof(XmlMetadata));
using (var ms = new MemoryStream())
{
serializer.Serialize(ms, metadata);
result = ms.ToArray();
}
return(result);
}