Video: The Google Authenticator-Arduino-LEGO mashup

Last week, Bits & Pieces took a closer look at an Arduino-powered Gmail (alert) lamp programmed to ping its creator in real-time about incoming emails labelled “important.” And today we’re going to get up close and personal with another Arduino-based project that involves a Google app known as Authenticator.

Essentially, Google’s Authenticator is a program that generates one time passwords (OTPs) for users, which are then employed as a second factor of authentication in conjunction with a “normal” password.

“OTPs work by having a shared secret and a synchronized clock on two devices,” HackADay’s Eric Evenchick explained. “When you generate the password, a hash based on the secret and timestamp is created. This proves that you have access to the secret, and can only be used once.”

As you can see in the video above (Note: hit the CC button for English captions), a Maker by the name of Luca Dentella designed a functioning authentication system using Google Authenticator and his Atmel-powered Arduino. The platform is showcased using a cute mini LEGO of a model house, complete with a door that swings open when the correct code sequence is entered.

“A web app is used to generate a secret that can be configured into the Arduino using an array, and into Google Authenticator using a QR code,” Evenchick added. “The Arduino is using a library that implements Time-based One Time Password authentication (TOTP).”

Interested in learning more about Luca Dentella’s Google Authenticator-Arduino-LEGO mashup? Be sure to check out his official project page here.

1 thought on “Video: The Google Authenticator-Arduino-LEGO mashup

  1. Make Money

    Howdy would you mind stating which blog platform you’re using? I’m looking to start my own blog in the near future but I’m having a difficult time selecting between BlogEngine/Wordpress/B2evolution and Drupal. The reason I ask is because your layout seems different then most blogs and I’m looking for something completely unique. P.S My apologies for getting off-topic but I had to ask!

    Like

    Reply

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s