A tool to explore optical data transmissions and covert channels

Mar 07, 2018

Project update 2 of 7

Hello and Test Procedure

Hi everyone-

Wow! Because of your support, we’re well on our way to reaching our $4900 goal. That amount was calculated using lots of spreadsheets to ensure that we can cover the manufacturing of 100 OpticSpy units plus associated fees.

I’ve recently completed the system level test procedure that will be used by our manufacturer, e-Teknet, to test each unit during production. It uses a Parallax Hackable Electronic Badge as the transmitter. I had a few in my lab and using them saved me the effort of creating custom test hardware. The badge’s LCD display shows the text the badge is transmitting through its on-board infrared LED. After following some basic measurement and configuration steps, the tester just has to hold the OpticSpy unit to the badge and verify that it can receive the message. It’s a simple system-level test, but ensures the unit(s) you receive will work out-of-the-bag. I’ve posted the test procedure and code on my site and a simple demonstration video on YouTube if you want to check them out.

My next step is to put together a quick-start guide that will explain the operation and configuration of OpticSpy.

Stay tuned for another update in the next week or so!


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