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file encryption vb .net


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Hi, I'm currently making a program in visual basic .net. I want to store the PID, SID, Serial and CDKEY of windows in a file to use it as a copy protection. Now, I dunno how to get those information but I know there is a way. This isn't my problem that I'm asking for help right now but I'll be glad of someone can answer that too.

The main problem is where to keep those data. I could keep them into my access database, but what an easy thing to crack as an access password. Registry, too easy to track. So I think about a file that would be encrypted. At first, I though about binary encryption, but I simply don't remember how to do this thing. I was told about hashing table, but I'm not sure how to do this. What do you suggest me and how that can be done?

Thanks

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I'll answer the first bit, as it's the only thing i can do lol. The PID sits in the registry at HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion. Not sure what SID is, but serial and cd key are the same things no? And Windows does not store the actual key any where on the system, it's transformed into the PID, so it would be rather redundant to check PID, and serial/cdkey which is stored as the PID anyways.

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