How to write an application that unlocks windows with RFID tag

Asked Nov 07 '14 at 10:55

Active Jan 16 '15 at 11:12

Viewed 1,174 times

I need to write an application that locks a pc running windows 7. The locking is done via mouse click on a lock icon, or due to inactivity.

What's special in my case is that the unlocking is done via one of several RFID tags.

I got the RFID reader, which simulates key presses when a tag is presented.

Solution?

I thought about implementing a screensaver that checks the RFID against a table of legitimate users, but I'm not sure if this is a good approach since it should not be circumvented by pressing CTRL-ALT-DELETE, ALT-Tab,....

I'm not looking for high level security here, just a way to prevent easy access to the PC.

How would you approach that problem? Do you think the screensaver idea is the way to go?

Update

From this answer I know that it is not possible to unlock a secured desktop (with secured I mean locked with Windows+L) with a RFID tag. But perhaps I could prevent access without using the windows desktop security lock...?

edited May 23 '17 at 10:25

Community

asked Nov 07 '14 at 10:55

Ronald McBean

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if you can simulate key presses, simulate `Win Key` + `L` – Hamid Pourjam Nov 07 '14 at 11:08
@HamidP: The unlocking is not done with the windows password. So I can't use the standard lock screen. – Ronald McBean Nov 07 '14 at 11:20
take a look at http://openkiosk.sourceforge.net/index.html – Hamid Pourjam Nov 07 '14 at 11:27
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[Create Custom Login Experiences With Credential Providers For Windows Vista](http://msdn.microsoft.com/en-gb/magazine/cc163489.aspx) but C# might not be the best tool for the job. – Damien_The_Unbeliever Nov 07 '14 at 11:34
Without knowing how all about the simulated keys.... maybe have it put the password in for you? – Robert Fleck Jan 26 '15 at 17:47

How to write an application that unlocks windows with RFID tag

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