/// <summary>
///
/// </summary>
public static void ShredFile(string path, CipherType cipherType, bool nameObfuscation = true, bool propertyObfuscation = true)
{
if ((File.GetAttributes(path) & FileAttributes.Directory) == FileAttributes.Directory)
{
throw new FileNotFoundException(path);
}
if (!File.Exists(path))
{
throw new FileNotFoundException(path);
}
switch (cipherType)
{
case CipherType.Otp:
OtpHelper.EncryptWithoutKey(path);
break;
case CipherType.Aes:
AesHelper.EncryptFile(AesHelper.GetNewAesKey(), path);
break;
}
if (propertyObfuscation)
{
ObfuscateFileProperties(path);
}
if (nameObfuscation)
{
path = ObfuscateFileName(path);
}
File.Delete(path);
}
public OtpTransformTask(string filePath, string ext, string keyFilePath = "", bool encrypt = true) : base(ResourceType.File, filePath, keyFilePath)
{
InnerTask = new Task(() =>
{
string newFileName;
if (encrypt)
{
newFileName = FileGeneratorHelper.GetValidFileNameForDirectory(
DirectoryHelper.GetDirectoryPath(filePath),
Path.GetFileName(filePath),
ext);
}
else
{
if (!filePath.EndsWith(ext, StringComparison.Ordinal))
{
throw new InvalidEncryptedFileException();
}
var name = filePath.RemoveLast(ext.Length);
newFileName = FileGeneratorHelper.GetValidFileNameForDirectory(
DirectoryHelper.GetDirectoryPath(name),
Path.GetFileName(name),
string.Empty);
}
if (newFileName == null)
{
throw new NoSuitableNameFoundException();
}
File.Move(filePath, newFileName);
if (string.IsNullOrEmpty(keyFilePath))
{
OtpHelper.EncryptWithoutKey(newFileName);
}
else
{
OtpHelper.Transform(newFileName, keyFilePath);
}
});
}
