Cryptography – Communication system using cryptography – Wireless communication
Reexamination Certificate
2004-10-27
2008-10-28
Truong, Thanhnga B (Department: 2135)
Cryptography
Communication system using cryptography
Wireless communication
C380S277000, C726S003000, C726S014000, C455S410000, C455S411000
Reexamination Certificate
active
07443983
ABSTRACT:
A communication apparatus which is connected to networks including first network of first security level which is lowest security level and second network of second security level, and is wirelessly connected to terminal receiving terminal identifier and password which designates one of networks, from terminal, selecting one of first security level and second security level based on an authentication result of terminal, terminal identifier, and password, forwarding, when second security level is selected, data item which is transmitted from terminal and is encrypted using cryptographic algorithm and cryptographic key to second network, and forwarding, to terminal, data item which is transmitted from second network and addressed to terminal, and forwarding, when first security level is selected, data item transmitted from terminal to first network, and forwarding, to terminal, data item which is transmitted from first network and addressed to terminal.
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U.S. Appl. No. 11/236,808, filed Sep. 28, 2005, Goto et al.
Goto Masataka
Kashio Yoshihiko
Shibuya Naohisa
Takagi Masahiro
Tanizawa Yoshimichi
Kabushiki Kaisha Toshiba
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Truong Thanhnga B
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