ShareKey: An App That Can Turn Your Smartphone Into a Door Card!

This App is called ShareKey. It is made by Prof. Ahmad-Reza Sadeghi, a German professor at the Center for Advance Security Research.

ShareKey is an NFC(Near Field Communication)-enabled app which can turn your smartphone into a door key. With ShareKey installed, all you need to do is swipe your Smartphone over the NFC lock on the door, and then ShareKey would send the command to open the door via Bluetooth or wifi.
Since it is based on NFC technology for the security concern, no device is able to intercept the signal at this close distance.
In addition, ShareKey sets access to the permission of visit, frequency, and duration. Users can freely do the setup by their own as this app can be well compatible with iPhone, iPad, iPod series, and iOS system devices. However, the bad news is that iOS system products still do not have this NFC function, then that’s why the app is not widely used nowadays.
But, what if you accidentally lose your Smartphone or what if your phone gets stolen? Does this mean that the thief can walk into my house without problems? ShareKey definitely has potential but some security measurements will have to be taken.