| 摘要 |
distributed data processing and control systems including those handling secret information. SUBSTANCE: mutual authentication mechanism has central authentication module incorporating Ic, shaping unit, ciphering unit, memory unit, timer, deciphering unit, and analyzing unit, as well as terminal authentication module incorporating It shaping unit, memory unit, ciphering unit, timer, and analyzing unit. EFFECT: provision for combining mutual authentication and message timely delivery check-up processes. 1 dwg
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