Information security – Prevention of unauthorized use of data including prevention...
Reexamination Certificate
2005-12-12
2009-11-10
Korzuch, William R (Department: 2431)
Information security
Prevention of unauthorized use of data including prevention...
C705S055000
Reexamination Certificate
active
07617536
ABSTRACT:
An unauthorized apparatus detection device detecting clones of a playback device. In a management server, a reception processing unit acquires a user terminal identifier and a first random number of a user terminal, judges whether a second management server random number, which is stored in a storage unit in correspondence with the user terminal identifier, matches the first user terminal random number. If the two fail to match, a display unit displays a message indicating that a clone exists. If the two match, a terminal information generation unit generates a new random number, and writes the generated random number as the second random number in the storage unit. A transmission processing unit transmits the generated random number to the user terminal via a transmission/reception unit and the user terminal updates the first user terminal random number to the generated random number.
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Futa Yuichi
Gomi Takeshi
Imai Hideki
Kobara Kazukuni
Nakano Toshihisa
Korzuch William R
Panasonic Corporation
Squires Brett
The University of Tokyo
Wenderoth , Lind & Ponack, L.L.P.
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