Method for user authentication in a device comprising a touch screen
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United States of America Patent
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May 17, 2016
Grant Date -
Oct 1, 2015
app pub date -
Mar 26, 2014
filing date -
Mar 26, 2014
priority date (Note) -
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status (Latency Note)
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Abstract
A method for user authentication in a device comprising a touch screen is provided. In operation, the device stores a user authentication code corresponding to a user. When a trigger for user authentication is detected, the device randomly selects one or more character positions in the sequence of characters. The device further requests the user to enter a character corresponding to each of the selected one or more character positions in the sequence of characters. When the device detects a user entry made using a keypad on the touch screen, the device determines whether the user entry matches a character corresponding to each of the selected one or more character positions. When the user entry matches a character corresponding to each of the selected one or more character positions in the sequence of characters, then the user is successfully authenticated to the device.
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