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Three-factor authentication is the new two-factor authentication

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Two-factor authenticationcontinues to provide our online selves with more security for our email and online banking. Meanwhile, in the physical world, protecting our valuables is now all about three-factor authentication.


Three-factor authentication is the new two-factor authentication

Not sure what I mean? Here’s a video from Switched On Network that demonstrates how to use a Raspberry Pi to build a three-factor door lock comprised of an RFID keyring, 6-digit passcode, and one-time access code sent to your mobile phone.

Note that this is a fairly long video, so feel free to skip it for now and read my rather snazzy tl;dr. You can come back to the video later, with a cup of tea and 20 minutes to spare. It’ll be worth it, I promise.

Build a Raspberry Pi Smart Door Lock Security System with Three Factor Authentication!

https://amzn.to/2A98EaZ (UK) / https://amzn.to/2LDlxyc (US) Get a free audiobook with a 30-day trial of Audible from Amazon! Build the ultimate door lock system, effectively turning your office or bedroom into a high-security vault!

The tl;dr of three-factor door locks by Alex Bate

To build Switched On Network’s three-factor door lock , you need to source aRaspberry Pi 3, a USB RFID reader and fob, a touchscreen, a electronic door strike, and a relay switch. You also need a few other extras, such asa power supply and a glue gun.


Three-factor authentication is the new two-factor authentication

Once you’ve installed the appropriate drivers (if necessary) for your screen, and rotated the display by 90 degrees, you can skip ahead a few steps by installing the python script from Switched On Network’s GitHub repo ! Cheers!


Three-factor authentication is the new two-factor authentication

Then for the physical build: you need to attach the door strike, leads, and whatnot to the Pi ― and all that together to the door and door frame. Again, I won’t go into the details, since that’s where the video excels.


Three-factor authentication is the new two-factor authentication

The end result is a superior door lock that requires you to remember both your keys and your phone in order to open it. And while we’d never suggest using this tech to secure your house from the outside, it’s a perfect setup for inside doors to offices or basement lairs.


Three-factor authentication is the new two-factor authentication

Everyone should have a lair.

Now go watch the video!


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