public static void Encrypt(String path)
{
if (Common.IsRunningOnMono() && Common.IsPlatformUnix())
{
SysFile.Encrypt(path);
return;
}
String fullPath = Path.GetFullPath(path);
string normalizedPath = Path.NormalizeLongPath(fullPath);
if (NativeMethods.EncryptFile(normalizedPath))
{
return;
}
int errorCode = Marshal.GetLastWin32Error();
if (errorCode == NativeMethods.ERROR_ACCESS_DENIED)
{
var di = new DriveInfo(Path.GetPathRoot(normalizedPath));
if (!String.Equals("NTFS", di.DriveFormat))
{
throw new NotSupportedException("NTFS drive required for file encryption");
}
}
Common.ThrowIOError(errorCode, fullPath);
}
