public void DeSerialCryptoDate()
{
string fileName = @"\Date.dat";
string directoryName = Directory.GetCurrentDirectory();
string path = directoryName + @"\Date" + fileName;
DateTimeSpeichern dateTime = null;
if (File.Exists(path))
{
FileStream fsOpen = File.OpenRead(path);
byte[] bytearrayinput = new byte[fsOpen.Length];
fsOpen.Read(bytearrayinput, 0, bytearrayinput.Length);
fsOpen.Close();
//FileStream fsWrite = File.OpenWrite(path);
using (Aes aesAlg = Aes.Create())
{
aesAlg.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
aesAlg.IV = ASCIIEncoding.ASCII.GetBytes(sIV);
// Create a decrytor to perform the stream transform.
ICryptoTransform decryptor = aesAlg.CreateDecryptor(aesAlg.Key, aesAlg.IV);
using (MemoryStream msDecrypt = new MemoryStream(bytearrayinput))
{
using (CryptoStream csDecrypt = new CryptoStream(msDecrypt, decryptor, CryptoStreamMode.Read))
{
try
{
BinaryFormatter formatter = new BinaryFormatter();
dateTime = (DateTimeSpeichern)formatter.Deserialize(csDecrypt);
}
catch (SerializationException)
{
MessageBox.Show("Eine Fehler ist aufgetretten.");
throw;
}
//finally
//{
// fs.Close();
//}
}
}
}
if (dateTime.LetzteAnderung == DateTime.Today.Date)
{
dataPickerAdd.SelectedDate = dateTime.TimeSpeichern;
}
else
{
dataPickerAdd.SelectedDate = DateTime.Today;
}
}
else
{
dataPickerAdd.SelectedDate = DateTime.Today;
}
}
public void SerialCryptoDate()
{
string fileName = @"\Date.dat";
string directoryName = Directory.GetCurrentDirectory();
DirectoryInfo neueDirectory = Directory.CreateDirectory(directoryName + @"\Date");
string path = directoryName + @"\Date" + fileName;
#region FileAccess for date
//File.SetAttributes(path, FileAttributes.Hidden);
//необходимо дописать доступ к файлу, для того что бы он не изменялся
//в файле, а был изменен только в программе
//FileSecurity fs = new FileSecurity();
//fs.AddAccessRule(new FileSystemAccessRule(@"DOMAINNAME\AccountName",
// FileSystemRights.ReadData,
// AccessControlType.Allow));
//File.SetAttributes(path, FileAttributes.Encrypted);
#endregion
//Serialization
DateTimeSpeichern dateTime = new DateTimeSpeichern();
FileStream stream = new FileStream(path, FileMode.Create);
dateTime.TimeSpeichern = dataPickerAdd.SelectedDate.Value.Date;
dateTime.LetzteAnderung = DateTime.Now.Date;
BinaryFormatter formatter = new BinaryFormatter();
formatter.Serialize(stream, dateTime);
stream.Close();
//Cryptografy
FileStream fsOpen = File.OpenRead(path);
byte[] input = new byte[fsOpen.Length];
fsOpen.Read(input, 0, input.Length);
fsOpen.Close();
FileStream fsWrite = File.OpenWrite(path);
using (Aes aesAlg = Aes.Create())
{
aesAlg.Key = ASCIIEncoding.ASCII.GetBytes(sKey);
aesAlg.IV = ASCIIEncoding.ASCII.GetBytes(sIV);
// Create a decrytor to perform the stream transform.
ICryptoTransform encryptor = aesAlg.CreateEncryptor(aesAlg.Key, aesAlg.IV);
using (CryptoStream csEncrypt = new CryptoStream(fsWrite, encryptor, CryptoStreamMode.Write))
{
csEncrypt.Write(input, 0, input.Length);
}
}
fsWrite.Close();
}
