Title:
PORTABLE ELECTRONIC DEVICE AND IC CARD
Document Type and Number:
Japanese Patent JP2007115187
Kind Code:
A
Abstract:
To provide a portable electronic device and IC card capable of preventing, for example, runaway of a program resulting from disturbance so that important data stored inside can be prevented from being leaked and altered by restricting executable program modules or accessible data in each phase (use stage).
In the IC card capable of switching phases (stages to be used), among an initialization phase, an issuing phase and an operation phase, restricts executable program modules or accessible data in each phase (use stage).
Inventors:
FUKUDA AKI
Application Number:
JP2005308614A
Publication Date:
May 10, 2007
Filing Date:
October 24, 2005
Export Citation:
Assignee:
TOSHIBA CORP
International Classes:
G06K19/07; B42D15/10; G06F21/10; G06F21/77
Attorney, Agent or Firm:
Takehiko Suzue
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto
Satoshi Kono
Makoto Nakamura
Kurata Masatoshi
Takashi Mine
Yoshihiro Fukuhara
Sadao Muramatsu
Ryo Hashimoto