Thanks to Craig for sending in his great project! View more here.

The Internet of Things is mostly about bringing Things to The Internet, but it’s also about bringing The Internet to Things. Two-Factor Authentication (2FA) has been offered by mission critical services websites like bank accounts or Bitcoin wallets for some time now, providing an additional layer of security beyond just a password. Since resin.io is all about crossing the gap between the internet and the real world we decided to put this concept into action by building a safe-deposit box that requires 2FA to open.

By combining resin.io with Twilio’s Authy, we got to do this with a very simple deployment system —git push resin master— and a very easy way to add the 2FA mechanism.

Safes and lockers in public spaces or hotels are usually opened by a key or by tapping in a code on a numeric keypad. We’ve come up with an alternative approach that combines a numeric code with an SMS sent via Authy to the user’s phone, which means that opening the safe involves having both the code and the mobile phone.

Read the full tutorial here.

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