Cryptography – Communication system using cryptography – Wireless communication
Reexamination Certificate
2007-09-11
2007-09-11
Moise, Emmanuel L. (Department: 2137)
Cryptography
Communication system using cryptography
Wireless communication
C726S001000, C726S004000, C726S006000, C726S007000, C709S227000, C370S392000, C455S410000, C455S411000
Reexamination Certificate
active
10327193
ABSTRACT:
In a communication system, a first wireless communication apparatuses belonging to a communication group receives a connection request frame including a notifying security level from a second communication apparatus outside of the communication group. The first communication apparatus stores a reference security level peculiar to the communication group, which is selected from security levels depending on one of encryption methods including non-encryption and encryption strengths. In the first communication apparatus, the notifying security level is compared with the reference level, and a response frame including one of a connect rejection and a connection permission is described, is generated and transferred to the second communication apparatus. The connect rejection represents a rejection of connection to the second communication apparatus and the connection permission represents a permission of connection to the second communication apparatus.
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Adachi Tomoko
Toshimitsu Kiyoshi
Kabushiki Kaisha Toshiba
Moise Emmanuel L.
Nguyen Minh Dieu
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