Wi-Fi signals can be exploited to recognize keystrokes and a system that can do so has been already created, a newly published research paper reveals.
According to researchers at Michigan State University, and Nanjing University in China, the user’s movement over the keyboard generates a unique pattern in the time-series of Channel State Information (CSI) values. Moreover, researchers argue that a Wi-Fi signal based keystroke recognition system called WiKey can recognize typed keys based on CSI values at the Wi-Fi signal receiver end.
Leave a reply
