Communication system, wireless-communication device, and control method therefor
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United States of America Patent
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Mar 15, 2011
Grant Date -
Feb 21, 2008
app pub date -
Aug 14, 2007
filing date -
Aug 15, 2006
priority date (Note) -
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Abstract
A wireless-communication device performing mutual authentication between the wireless-communication device and a different wireless-communication device by using an authentication server includes a communication-setting-data-retention unit retaining communication-setting data including a first metric corresponding to the path to the authentication server, as a self-authentication-server metric, a signal-reception unit receiving a predetermined signal transmitted from the different wireless-communication device, the predetermined signal including a second metric corresponding to the path from the different wireless-communication device to the authentication server, as a nonself-authentication-server metric, and a control unit determining the wireless-communication device to be a supplicant when the self-authentication-server metric is better than the nonself-authentication-server metric, and determining the wireless-communication device to be an authenticator when the self-authentication-server metric is worse than the nonself-authentication-server metric.
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