发明名称 INFORMATION PROTECTING DEVICE
摘要 PURPOSE:To prevent information from being stolen by constituting an information processing system in which accessing from a terminal device is not unconditionally permitted in the information processing system. CONSTITUTION:When the information stored in an information processing device 1 is accessed from a terminal device 6, the information protecting device 7 of the information processing system decodes a cipher/symbol transmitted from the terminal device 6 and when it is the registered cipher/symbol, the terminal device 6 is connected to the information processor 1. When there is an access from the terminal device 6 by the user other than the registered cipher/symbol, the transmitted cipher/symbol is outputted for the purpose of warning. Then, an optional accessing to the information stored in the information processor is prevented in this way.
申请公布号 JPS59172867(A) 申请公布日期 1984.09.29
申请号 JP19830046602 申请日期 1983.03.18
申请人 NIPPON DENKI KK 发明人 TAKAHASHI TADAO
分类号 H04L12/22;H04L29/06;(IPC1-7):H04L11/26 主分类号 H04L12/22
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