nullcoder Merhaba,
public void WipeFile(string filename, int timesToWrite)
{
try
{
if (File.Exists(filename))
{
// Set the files attributes to normal in case it's read-only.
File.SetAttributes(filename, FileAttributes.Normal);
// Calculate the total number of sectors in the file.
double sectors = Math.Ceiling(new FileInfo(filename).Length/512.0);
// Create a dummy-buffer the size of a sector.
byte[] dummyBuffer = new byte[512];
// Create a cryptographic Random Number Generator.
// This is what I use to create the garbage data.
RNGCryptoServiceProvider rng = new RNGCryptoServiceProvider();
// Open a FileStream to the file.
FileStream inputStream = new FileStream(filename, FileMode.Open);
for (int currentPass = 0; currentPass < timesToWrite; currentPass++)
{
UpdatePassInfo(currentPass + 1, timesToWrite);
// Go to the beginning of the stream
inputStream.Position = 0;
// Loop all sectors
for (int sectorsWritten = 0; sectorsWritten < sectors; sectorsWritten++)
{
UpdateSectorInfo(sectorsWritten + 1, (int) sectors);
// Fill the dummy-buffer with random data
rng.GetBytes(dummyBuffer);
// Write it to the stream
inputStream.Write(dummyBuffer, 0, dummyBuffer.Length);
}
}
// Truncate the file to 0 bytes.
// This will hide the original file-length if you try to recover the file.
inputStream.SetLength(0);
// Close the stream.
inputStream.Close();
// As an extra precaution I change the dates of the file so the
// original dates are hidden if you try to recover the file.
DateTime dt = new DateTime(2037, 1, 1, 0, 0, 0);
File.SetCreationTime(filename, dt);
File.SetLastAccessTime(filename, dt);
File.SetLastWriteTime(filename, dt);
// Finally, delete the file
File.Delete(filename);
WipeDone();
}
}
catch(Exception e)
{
WipeError(e);
}
}
Şunu veya CMD üzerinden;
Process p = new Process();
p.StartInfo = new ProcessStartInfo( "cmd", "/c sdelete -p 1 -s -z -q -a 'path/to/director' )
{
RedirectStandardOutput = true,
UseShellExecute = false,
CreateNoWindow = true
};
p.Start();
string output = p.StandardOutput.ReadToEnd();
p.WaitForExit();
Bu şekilde deneyebilirsin.
Kaynaklar;
1.kod: https://www.codeproject.com/Articles/22736/Securely-Delete-a-File-using-NET
2.kod: https://stackoverflow.com/a/50023215/9326735
