Multi-smart cards for internal operating system

An on-chip operating system and smart card technology, applied in the field of smart cards, can solve problems such as incompatibility of smart cards, and achieve the effect of reducing production costs and ensuring safety and reliability.

Inactive Publication Date: 2007-10-03
HUAZHONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in modern smart card technology, a smart card has only one card issuer, and can have multiple application providers. In order to protect the security and confidentiality of their respective business data and operation information and the protection of technical property rights, each card issuer will provide The application program is integrated with the COS platform developed by it. The COS platform does not provide support for the application programs of other card issuers, so the smart cards independently issued by each card issuer are generally not compatible, which also leads to the user having to purchase and carry multiple smart cards.

Method used

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  • Multi-smart cards for internal operating system

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Embodiment Construction

[0052] As shown in Figure 1, the present invention comprises: main processor 1, safety control coprocessor 2, main memory 3, auxiliary memory 4, dynamic address bus controller 5, one-way communication buffer 6, shared I / O interface and Switching module 7, secondary reset module 8 and power control module 9.

[0053] The main memory 3 is used for partitioning and independently storing each COS program code and application program. FIG. 2 lists a distribution method of the storage space of the main memory. The first partition is the bottom layer management program code of the main processor, and the other partitions are the program codes of each COS and its integrated application program codes. The information in the main memory 3 only needs to be stored independently in partitions, and FIG. 2 is only for a more intuitive representation.

[0054] The auxiliary memory 4 is used for storing and backing up the storage allocation information of each COS, and stores it in the form o...

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Abstract

The invention relates to an intelligent card with multiple chip operating systems (COSs), belonging to the field of data memory and information safety of the intelligent card. The intelligent card of the invention is provided with master processor, safety control protocol processor, master memory, auxiliary memory, dynamic address bus controller, one-way communication buffer, shared I / O interface and corresponding switching module, secondary reset module and power supply control module. The invention adopts a two-processor control mechanism, and master and auxiliary memories to store data, and integrates the COSs and applications of multiple existing intelligent cards of the same system but different kinds in one card, and can ensure the independent operating mutual exclusivity of multiple COSs; the user identification module and COS information recovering module provided by the invention ensure the data access safety of the Ucard. The invention adopts the idea of 'one card-multiple use' and provides multiple application services by one card, and effectively solves the portable problem and ensures convenience and portability as well as safety and reliability of using card.

Description

technical field [0001] The invention belongs to the technical field of smart card data storage and information security, and specifically relates to a smart card (UCard, Universal Smart Card, also called "Universal Smart Card") with multiple on-chip operating systems (COS, Chip Operating System). Background technique [0002] The COS and application program of the early smart card are fixed in the card in the form of a mask, and the COS and application program in the card cannot be changed during the life cycle of the card. This measure ensures the security and integrity of the smart card data, but makes the smart card single application. With the increasing use of smart cards, the social affairs, commercial services, and consumption activities involved are increasing, which makes the number of smart cards held by a single cardholder continue to increase. For a single cardholder, this not only reduces the performance of smart card portability, but also causes idle and waste...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): G06F13/00G06F17/00G06K19/07
Inventor曹计昌张斌邱鹏李纯张登宝冯国平古明生舒林
OwnerHUAZHONG UNIV OF SCI & TECH