| 摘要 |
PURPOSE:To limit the console users and to improve the protection performance of the system secrecy by verifying the console using right of the users when a console is set up for application of a console command. CONSTITUTION:When a command is received from a consolr 13, an input mode is discriminated by an input mode discriminating means 2. When a refusing mode is discriminated, a command discriminating means 3 discriminates the presence or absence of a console opening command by reference to a command list 12. If no set-up command is recognized, an input error is decided. When the opening command is discriminated, an input right inspecting means 4 discriminates the presence or absence of the using right via a parameter. When the using right is discriminated by the means 4, a mode changing means 5 changes a console input key control area 11 into a permitting mode so that the commands are available via the console 13. Thus it is possible to limit the users of the console 13 and to improve the protection performance of system secrecy. |
