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Asked: 2026-05-11T00:55:16+00:00

I was thinking of making a small tool. It is not important what the

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I was thinking of making a small tool. It is not important what the tool will do. The important thing, is that the tool will need to store some sensitive information on the user’s HDD. EDIT: The information that will be stored is USER’S information – I’m not trying to protect my own content, that I distribute with the app.

I understand that I need to encrypt this information. But then, where do I safely store the encryption password? It’s some sort of an infinite recursion…

So, is there a way, to encrypt information on windows, and have windows securely manage the passwords? When I say windows I mean Windows XP SP2 or later.

I should also note, that users on the same system must not have access to other users information (even when they are both running my application).

I’m looking for both – .NET 2.0 (C#) and native (C/C++) solutions to this problem.

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  1. is there a way, to encrypt information on windows, and have windows securely manage the passwords?

    CryptProtectData: http://msdn.microsoft.com/en-us/library/windows/desktop/aa380261(v=vs.85).aspx

    Using from .NET: http://msdn.microsoft.com/en-us/library/aa302402.aspx

    Historically, Protected Storage (available in XP, read-only in vista+): http://msdn.microsoft.com/en-us/library/bb432403%28VS.85%29.aspx

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