Where is the best place to store the logged user and information

Question

I've found a lot of answers for web applications, but none for winforms.

I want to store the user (id at least), the UI language in use and other general info that should last for the time a user is connected. Note: I'm developping a DLL.

So to summarize, I need to store the data while the application is open. When it's closed, all the infos can be disposed.

Possible solutions: - Keep the information in a static class, but it's probably a bad practice. - Create a class which has to be sent in parameter to whatever is called/instanciated in the DLL - Create a class and find a way to make it reachable from other places in the DLL (I don't know any way to achieve that)

Note: I do not use Windows' Active Directory. Note 2: I don't need to store sensitive data like the password

Answer 1

You can save your user data in an encrypted file. You would build an xml file then use synchronous encryption to save it. (Synchronous means you have a common key to decode it, which you could put in a static class). Search synchronous xml encryption c#