Move over, passwords! Scientists have developed a new
software that can enable your touchscreen smartphone to identify you by the
unique way you tap and swipe on the device.
The software 'SilentSense', developed by Cheng Bo and
his colleagues at the Illinois Institute of Technology, has demonstrated 99 %
accuracy in tests.
It uses the phone's built-in sensors to record the unique patterns of pressure, duration and fingertip size and position each user exhibits when interacting with their phone or tablet.
It uses the phone's built-in sensors to record the unique patterns of pressure, duration and fingertip size and position each user exhibits when interacting with their phone or tablet.
Machine learning algorithms then turn this into a
signature that identifies the user - and will lock out anyone whose usage
patterns do not match, 'New Scientist' reported.
The system's accuracy can be further enhanced, by
enabling the smartphone's accelerometer and gyroscope to measure how much the
screen moves when you are jabbing at it.
They can also pick up on your unique gait as you walk
while using the screen.
In tests, 100 users were told to use the smartphone's
touchscreen as they would normally.
SilentSense was able to identify the phone's owner with
99 % accuracy after no more than 10 taps. Even with an average of 2.3 touches
the system was able to verify the user 98 % of the time.
The software stops checking the user's identity when
apps like games are being used. However, to maintain security, it automatically
switches on when more sensitive applications, such as email or SMS, are
accessed.
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