Title:
IC CARD
Document Type and Number:
WIPO Patent Application WO/1994/010655
Kind Code:
A1
Abstract:
Security protection is accomplished in an IC card by achieving security protection of data at an item level, allowing a high speed access, and preventing illegal use. The IC card includes means (12) for managing service-wise an access level value allotted to each data item, means (13) for retrieving a data item designated by access level value information from outside by looking up a management access level value designated by service kind information from outside, and means (11) for gaining access collectively to the data item values retrieved. The IC card further includes means (23) for initiating time count processing from an initial value whenever a normal access processing is completed, means (24) for judging whether or not data is greater than a time limit value of time count graphic definition, and means (25) for reporting an error occurrence to outside when a time-over state of the time count value is judged.
Inventors:
MIYAZAKI JUNSUKE
HARA HIDEAKI
HARA HIDEAKI
Application Number:
PCT/JP1993/001595
Publication Date:
May 11, 1994
Filing Date:
November 04, 1993
Export Citation:
Assignee:
FUJITSU LTD (JP)
International Classes:
G06F12/00; G06F12/14; G06F21/60; G06F21/62; G06K19/073; G06Q10/00; G06Q30/02; G06Q30/06; G06Q50/00; G07F7/10; (IPC1-7): G06K19/00; G06K17/00
Foreign References:
| JPS62257555A | 1987-11-10 | |||
| JPS62177696A | 1987-08-04 | |||
| JPH0253154A | 1990-02-22 | |||
| JPH01295385A | 1989-11-29 | |||
| JPS61160174A | 1986-07-19 | |||
| JPS61176667U | 1986-11-04 | |||
| JPS60181891A | 1985-09-17 | |||
| JPS61296486A | 1986-12-27 | |||
| JPH04137081A | 1992-05-12 |
Other References:
See also references of EP 0614159A4
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