Input information authentication device, server device, input information authentication system, and program of device
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United States of America Patent
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Jun 14, 2016
Grant Date -
Dec 4, 2014
app pub date -
Oct 18, 2012
filing date -
Dec 16, 2011
priority date (Note) -
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Abstract
At the time of input of authentication information, even when the hand and the input screen are seen from the third person, guess of authentication information is made difficult. A plurality of keys serving as input means are divided into a first region and a second region. Then, the first region and the second region are caused to transit between a first state and a second state distinguished from each other depending on the displayed contents. When a region where a key to be inputted for the input of authentication information is arranged is in the second state, input to the above-mentioned plurality of keys is recognized as dummy.
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