| 摘要 |
PURPOSE:To obtain a security system with heightened security and good operability by changing a pass-word with a host computer for every log-out and storing it at a terminal side. CONSTITUTION:A group pass-word is inputted by a key input at a terminal side, further, a card reading part 12 reads the pass-word from an ID card and this is transferred to a host computer. When a command except a log-out command is sent to the host computer while the log-in processing of the terminal is normally completed, the network service processing is executed by a network service module. When the log-out command is sent, the pass-word is created by a pass-word management module and it is transferred to the terminal. The pass-word transferred by a writing part 13 is written into the ID card at the terminal side. At the host computer, a pass-word table 6 is updated. |
