He found an open source project allows the STM32F103 to act as a USB cryptographic token for GNU Privacy Guard, which was a start. And as we saw recently, if you don’t like the cost of Yubikeys, you can roll your own 2FA device with a blue pill.Ĭontinue reading “Hacker Has Robot Give Yubikey The Finger” → Posted in how-to, Security Hacks Tagged capacitive touch, stepper motor, wemos d1 mini, Yubikeyįeeling the cost of commercial options like the YubiKey and Nitrokey were too high, started researching DIY alternatives. If this security flaw makes you uncomfortable, perhaps this 2FA launch console is more to your liking. Now all has to do is press a decidedly cooler key to make the finger press the button for him. Since the Yubikey requires capacitive touch, added a screw to the finger tip that’s wired to ground. It runs on a Wemos D1 mini and uses a small stepper motor to push a 3D-printed finger along a rack-and-pinion actuator. Fed up by inconvenience and looking for a lockdown project, decided to make a button-pressing robot finger that’s driven by a spare key on their groovy TKL keyboard. Now that working from home is the norm, has the laptop off to the side, far out of reach.Ī USB-C extension cable certainly made it more accessible, but did nothing for the actuation fail rate of the tiny button. Before all that is 2020 occurred, had the little 2FA nano-donglette plugged into a spare USB port on the side of their laptop so that it was always available wherever the laptop traveled. Is not a fan of the tiny, hard-to-actuate button on the average Yubikey.
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