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Storage managing method and its device and portable electronic device used for same device

A technology for access management and judging devices, which is used in data processing applications, computer security devices, collaborative devices, etc.

Inactive Publication Date: 2003-01-15
KK TOSHIBA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0013] As mentioned above, in the commands related to existing data elements, since the setting access and change access of the provider key are performed with the same command, if only the access conditions of each command are used If access is allowed to be judged, then the access conditions for the above settings and changes will become the same problem

Method used

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  • Storage managing method and its device and portable electronic device used for same device
  • Storage managing method and its device and portable electronic device used for same device
  • Storage managing method and its device and portable electronic device used for same device

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Embodiment Construction

[0052] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings, wherein the same or corresponding parts in the several drawings are designated with the same reference numerals.

[0053] Next, embodiments of the present invention will be described with reference to the drawings.

[0054] FIG. 1 is a basic configuration example of a card processing device used as a terminal device such as a terminal device such as a financial system or a shopping system, which is applied as an IC card of the portable electronic device according to the present embodiment.

[0055] That is, the device can connect the IC card 1 with the control unit 3 composed of CPU etc. through the card reader 2, and at the same time, connect the keyboard 4, the CRT display 5, the printer 6 and the floppy disk drive unit 7 on the control unit 3 constitute.

[0056] FIG. 2 shows an example of the basic configuration of the IC card 1 .

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PUM

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Abstract

The present invention discloses an access management apparatus which receives a command message having setting and changing functions, performs corresponding processing, and transmits results to the exterior. A checking unit checks the presence / absence of a data element to be accessed when receiving the command message having both setting and changing functions. A determining unit determines whether access is to be permitted by looking up a setting access condition if the data element is not set and looking up a changing access condition if the data element is set.

Description

technical field [0001] The present invention relates to electronic devices such as IC cards with built-in IC chips with non-volatile memory, CPU and other control elements. The result is sent to the external access management method and its device and the portable electronic device used for the device. technical background [0002] Recently, as a portable data storage medium of a portable electronic device, an IC card with a built-in IC chip having a nonvolatile data memory and a control element such as a CPU (Central Processing Unit) for controlling them has attracted attention. [0003] This kind of IC card allocates the built-in data memory to a plurality of files, and stores the data required for the operation of the application in each file, and can selectively realize only the The corresponding file is available for use. [0004] For this reason, multi-purpose use can be realized by dividing multiple application program data with files and storing them in one IC ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F12/14G06F21/60G06F21/62G06K17/00G06K19/07G07F7/10
CPCG06Q20/341G07F7/1008G06Q20/3576
Inventor 饭岛康雄
Owner KK TOSHIBA