| 摘要 |
PURPOSE:To reinforce security protection against an unauthorized use of an electronic computer system by allowing each user to register plural passwords, and also, allowing them to reserve in advance the next use schedule time. CONSTITUTION:The title mechanism is constituted so that plural pieces of passwords of each user can be registered, and also, each user is allowed to reserve the next use schedule time when use of a computer is ended. At the time of starting to use the computer, the user inputs his own user identifier first. Subsequently, since the system inquires a password, if it is a reserved time zone, the user inputs only the first password. If it is not the reserved time zone, the use inputs all the passwords that have been registered in advance. Unless the user is a proper user, there is scarcely possibility that he know correctly all of plural pieces of passwords which are not used usually, therefore, an unauthorized use is rejected. |
