CODEWITHSUNDEEP
c#windows
Erik
Erik

Reputation: 314

How can I uniquely identify a USB key from C#?

I'd like to be able to detect when a USB key is inserted. Furthermore, if I can distinguish between USB key A and USB key B then I am in even better shape. Lastly, if I can uniquely identify the key using some sort of hardware serial number, MAC address or whatever, then I'm in the best shape of all.

Basically I am looking at using a USB key as a hardware dongle to "unlock" my C# application.

Upvotes: 5

Views: 6193

Answers (3)

Muris
Muris

Reputation: 158

Hard Disk Id is not unique. Maybe theoretically it is, but in practice it is not. This is without any crack, emulator or any special program.

Upvotes: 0

Beep beep
Beep beep

Reputation: 19171

All hard-drives have a Serial Number, USB flash drives are no different. Here is an article, with a sample project, that shows how to get the non-volatile serial number. Basically you just need to enumerate the system drives and grab the PNPDeviceID property.

Upvotes: 8

tsilb
tsilb

Reputation: 8035

You need to retrieve the key's Hardware ID.

I don't see how to subscribe to the plugged-in event, but you could always have the user click a button too.

Upvotes: 0

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