Title:
IC CARD, DATA CONTROL METHOD AND PROGRAM
Document Type and Number:
Japanese Patent JP2010157112
Kind Code:
A
Abstract:
To prevent incorrect tampering for a data region which does not require authentication in an IC card.
The IC card includes: a recording unit (card CPU 38) to record display request data for requesting display on a display unit and control data for controlling display on the display unit onto a card memory 40 in response to a request from an external device; and a verification unit (display CPU 54) to verify data consistency by comparing predetermined control commands contained in the display request data and the control data recorded on the card memory.
COPYRIGHT: (C)2010,JPO&INPIT
Inventors:
ISHIBASHI YOSHITO
SUZUKI MAMORU
SUZUKI MAMORU
Application Number:
JP2008335254A
Publication Date:
July 15, 2010
Filing Date:
December 26, 2008
Export Citation:
Assignee:
SONY CORP
International Classes:
G06K19/073; G06K19/07
Attorney, Agent or Firm:
Miaki Kametani
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto
Tetsuo Kanamoto
Koji Hagiwara
Kazuki Matsumoto