| 摘要 |
PROBLEM TO BE SOLVED: To obtain a password collation system which improves security with easy operation without increasing the number of digits of a password itself. SOLUTION: The password is registered in a register part 38 as password data 42, and the time given by a clock 44 at this time is registered as password acceptance time data 43. When password input 41 is performed, an input analysis part 37 discriminates whether the time of each digit input coincides with the password acceptance time data 43 or not. Consequently, security by the password is released when the time of the clock 44 is made to coincide with that at the time of registration to input the password. |
