| 摘要 |
PROBLEM TO BE SOLVED: To add the timing of key input at the time of inputting a password to ID and the password so as to execute collation and to decide whether access right is to be given or not. SOLUTION: When a user sets the password at first, a computer reads and records the timing of key input at the time of inputting it. The method is to execute counting until next input is detected when initial key input is detected and to repeat in until a line change code is detected and to record the value into a file. When an accessing person inputs the password at the time of collation, the computer reads and stores the timing of key input in the same way as a case when the user sets the password. A synchronism factor is calculated with the timing of stored key input and the timing of key input in the file after the collation of a password character string is recognized. When the calculated synchronism factor satisfies a regulated synchronism factor, access right is given. |
