How to limit folder/file access to a program only?

Question

Okay, so I am creating a c# winforms application.

I want to write/read from binary data file. But, I want to put that file in a folder somewhere and I do not want anyone to be able to delete or edit the file. I only want the program that uses the file to be able to access it.

Is this possible? I looked into MSDN's structure on file security and as I researched it I saw people complain that if you limit the file to a user then that person can just override the privileges and make it editable.

Also, I thought about how this would actually work considering in essence I would like a process to edit the file only and that process could have varying process ID's if it is opened and closed over time, seems tough.

Any thoughts?

Answer 1

Even though this will not satisfy all your requirements you can try IsolatedStorage (System.IO.IsolatedStorage Namespace).

How to write and read file in IsolatedStorage

The System.IO.IsolatedStorage namespace contains types that allow the creation and use of isolated stores. With these stores, you can read and write data that less trusted code cannot access and prevent the exposure of sensitive information that can be saved elsewhere on the file system. Data is stored in compartments that are isolated by the current user and by the assembly in which the code exists. Additionally, data can be isolated by domain. Roaming profiles can be used in conjunction with isolated storage so isolated stores will travel with the user's profile. The IsolatedStorageScope enumeration indicates different types of isolation. For more information about when to use isolated storage