| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent third parties from stealing passwords while keeping the passwords easy for users to memorize by looking at how users move their fingers and arms, and also prevent the third parties from misusing the passwords illicitly used by the third parties even if the third parties figure out the passwords through memos or the Internet. <P>SOLUTION: An authentication device 1 includes: a display input device 3 that obtains numerical values of a plurality of numeric keys, which numerical values are entered simultaneously via the numeric keys; a calculating section 9 that determines an input password by calculating in accordance with a predetermined calculation method, the plurality of numerical values entered into the display input device 3; and a password verifying section 10 that verifies the input password determined by the calculating section 9 against a predetermined verification password. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
