发明名称 |
PASSWORD AUTHENTICATION DEVICE, PASSWORD AUTHENTICATION METHOD, AND NON-TEMPORARY COMPUTER-READABLE RECORDING MEDIUM STORING PASSWORD AUTHENTICATION PROGRAM |
摘要 |
A control unit makes a screen of a display unit display a plurality of pattern display areas to which a predetermined respective plurality of patterns are uniquely assigned at random as a pattern random array in the same layout as that of a plurality of input keys capable of inputting numerical values. The control unit determines a shortest path to go through a sequence of patterns serving as a password of a user in the pattern random array, and replaces a sequence of all patterns existing on the shortest path with a sequence of codes assigned to the respective plurality of input buttons according to a correspondence relationship between the plurality of input buttons and the plurality of pattern display areas to generate a one-time password. The control unit then compares the one-time password with a sequence of codes input by the user by using an input unit to perform authentication. |
申请公布号 |
EP2988239(A1) |
申请公布日期 |
2016.02.24 |
申请号 |
EP20140858338 |
申请日期 |
2014.09.11 |
申请人 |
KYOCERA DOCUMENT SOLUTIONS INC. |
发明人 |
KOWAKA MAKOTO;NAKAZATO YOSUKE;MATSUKI YOSHITAKA |
分类号 |
G06F21/31;G06F21/36;H04L29/06 |
主分类号 |
G06F21/31 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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