Electrical computers and digital processing systems: support – Multiple computer communication using cryptography – Particular communication authentication technique
Reexamination Certificate
2003-05-08
2010-11-09
Patel, Nirav (Department: 2435)
Electrical computers and digital processing systems: support
Multiple computer communication using cryptography
Particular communication authentication technique
C713S158000
Reexamination Certificate
active
07831831
ABSTRACT:
An authentication communication system is capable of storing information relating to revoked devices in less area than is conventionally required.A computer unit stores in advance revocation information that indicates at least one revoked apparatus, and when authenticating a driver unit judges, based on the revocation information, whether or not the driver unit is revoked. The computer unit prohibits communication with the driver unit when the driver unit is judged to be revoked, and communicates with the driver unit when the driver unit is judged not to be revoked.
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Ishihara Hideshi
Nagai Takahiro
Nakano Toshihisa
Ohmori Motoji
Tatebayashi Makoto
Panasonic Corporation
Patel Nirav
Wenderoth , Lind & Ponack, L.L.P.
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