| 摘要 |
A method of registering a password derivation pattern for deriving a password to be used in user verification, the method comprising: upon control of a server, generating a presentation pattern in which a predetermined character is assigned to each element in a predetermined pattern; presenting the generated presentation pattern to a user in order to cause the user to input a character assigned to a specific element in the generated presentation pattern; repeating the generating and the presenting until the password derivation pattern is specified based on the inputted character, and registering the specified password derivation pattern. |
