Some security researchers have developed a method to spoof fingerprint sensors in some models integrated into smartphones.
In action movies, the protagonists must sometimes enter an access area controlled by a fingerprint sensor. And to get there, they often manage to copy the fingerprint of a person with access to the room (often by cutting his finger, right). Today, millions of mobile devices use fingerprint sensors to be unlocked, and this scenario is no longer fiction.
We already talked in 2014 the performance of the Chaos Computer Club Berlin, the famous organization of hackers who managed to authenticate to an iPhone 5S using a fake fingerprint. But technology was then quite complex to set up and asked some experience -. And Time
But researchers from the University of Michigan have developed a new technique, faster more economical and relatively simple to unlock some fingerprint sensors.
the method is to scan and print a picture of the fingerprint that is to be imitated. It is based on the use of a Brother printer that can find on the market for about $ 400 and on photo paper and ink conductive silver designed by the Japanese manufacturer Agic. The procedure can be performed in about fifteen minutes is explained in a technical report published February 20, 2016
Researchers Anil Jain and Kai Cao tested four phones. Samsung Galaxy S6, a Huawei Honor 7, iPhone 5S and Meizu MX4 Pro. Their technique has worked on the Galaxy S6 and the sensor 7. Honor Kai Cao told the magazine Quartz that he had managed to unlock the sensor of the iPhone 5S, but failed to reproduce experience in drafting the technical report.
“ We had unlocked at first, but when we prepared the report, I was not able to unlock the iPhone. I used the same protocol and the same method. I’m not sure why it did not . “
In their report, the researchers claim that their technique could allow” hackers to generate many copies reconstruction using fingerprint or synthetic techniques which are easier than the copies fingerprint 2.5D . ” As Fingerprint sensors are democratizing, even in mid-range smartphones, the researchers stress the need to “ develop techniques against spoofing fingerprint .”
companies like NEXID develop for its biometric sensors that can check for a pulsation of blood flow in the finger.
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