Communication device, communication system and...

Details Communication device, communication system and... Communication device, communication system and...

2005-04-12

2009-10-13

Chai, Longbit (Department: 2431)

Electrical computers and digital processing systems: support

Multiple computer communication using cryptography

Particular communication authentication technique

C713S168000, C713S169000, C713S171000, C713S172000, C713S152000, C726S003000, C726S004000, C726S005000, C726S006000, C726S007000, C380S277000, C380S278000, C380S279000, C380S280000, C380S281000

Reexamination Certificate

active

07603557

ABSTRACT:
A communication device, a communication system and an authentication system for preventing a disguising act by an illegal man-in-the-middle and improving the safety and certainty of authentication processing are provided. A slave (20) transmits an authentication request including device information to a master (10). The master (10) receives the authentication request and displays the device information included in the authentication request on a screen of a display section (13). The user visually checks the device information displayed on the screen of the display section13(13), determines whether or not to verify the authentication, and instructs the master (10) of the determination result via an input section (14). The master (10), instructed to verify or not to verify the authentication, transmits a response in accordance with the instruction to the slave (20).

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“Nikkei Personal Computing”, Nikkei Business Publications, Inc., pp. 22, Nov. 24, 2003 (with English translation).

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