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Patent Searching and Data


Title:
DATA CARRIER AND DATA CARRIER SYSTEM
Document Type and Number:
Japanese Patent JP2010182032
Kind Code:
A
Abstract:

To provide a data carrier for attaining both tag authentication and reader/writer device authentication.

A data carrier having an anti-collision function of responding to anti-collision performed by a reader/writer device is provided with a storage medium in which the lists of tag authentication keys to be used for being authenticated by the reader/writer device and reader/writer device authentication keys for authenticating the reader/writer device are separately stored, so that it is possible to separately use the plurality of authentication keys stored in the storage medium, and that it is possible to reduce possibility that the authentication keys are disclosed to a third party.


Inventors:
KUBO TAKASHI
SUZUKI TAKEYUKI
Application Number:
JP2009024074A
Publication Date:
August 19, 2010
Filing Date:
February 04, 2009
Export Citation:
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Assignee:
YOSHIKAWA RF SYSTEM KK
FUJI XEROX CO LTD
International Classes:
G06K19/10; G06K17/00; G06K19/07
Domestic Patent References:
JPH11163853A1999-06-18
JP2008109276A2008-05-08
JP2003013644A2003-01-15
JP2008282103A2008-11-20
JP2008245215A2008-10-09
JPH01233687A1989-09-19
Attorney, Agent or Firm:
Takayoshi Kokubun