| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide an method of inputting authentication character, allowing the use of a shorter character string, an easily memorizable one, or a character string using few character kinds as an authentication character string, without lowering the safety. <P>SOLUTION: An ID is allocated to each of registrants, and authentication information for each ID is registered in a database 4 through a registration correction process 2. In this process, key-pressing time intervals between respective characters are separately acquired to be stored in a predetermined format in a storage device 12. By a system program, the ID and the authentication, data are acquired as input data 6. The authentication data include the input character string and its time intervals. The input data 6 are compared with registered data in the database 4. By using a minimum value among the key pressing time intervals between the respective characters as a unit, relative comparison is carried out for finding a multiplication factor of other intervals. <P>COPYRIGHT: (C)2007,JPO&INPIT</p> |
