Key management server, chat system terminal unit, chat system and recording medium

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United States of America Patent

PATENT NO 6215877
SERIAL NO

09158880

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Abstract

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A key management server is arranged at the same position as a terminal unit as viewed from a chat server. A channel secret key unique to each channel is generated by the key management server and distributed to a chat client so that the communication can be kept secret, even when a chat server low in reliability is used.

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Patent Owner(s)

Patent OwnerAddress
FUJITSU LIMITEDKAWASAKI-SHI

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Matsumoto, Tatsuro Kawasaki, JP 111 1520

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