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Method and device for realizing combined card operating system

An operating system and composite card technology, applied in the field of smart card operating systems, can solve the problem that smart cards cannot flexibly and strictly support multiple specifications at the same time, and achieve the effect of reducing the cost of card issuance and enhancing flexibility

Active Publication Date: 2008-11-26
FEITIAN TECHNOLOGIES
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  • Summary
  • Abstract
  • Description
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AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that a smart card cannot flexibly and strictly support multiple specifications at the same time in the prior art, the present invention provides a method for combining multiple operating systems on one card and a device for realizing the method. The invention can implement multiple operating systems on one card, and can support multiple specifications, so that multiple applications can be completed with one card

Method used

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  • Method and device for realizing combined card operating system
  • Method and device for realizing combined card operating system
  • Method and device for realizing combined card operating system

Examples

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Embodiment Construction

[0032] Such as figure 1 As shown, the developer of the smart card gathers the overlapped content of the various specifications that the card needs to apply together as a core module and writes it into the card. The core module includes a hardware driver module, a command dispatch module and a security algorithm module; The issuer also puts a basic card issuing command module into the card. Through the basic card issuing command module, the card issuer can create files and subdirectories in the card. Each subdirectory contains a set of transaction command interpretation programs corresponding to the application specifications. Each file and subdirectory contains internal description data with 32 data bits, which record the ID number, attribute, length, etc. of the file and subdirectory. According to needs, other numbers of data bits can also be used to represent attributes. From A byte representing file attributes is divided into 4 data bits, which are set as "flags", and other...

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Abstract

The present invention divides the operation system into kernel module, each specification command processing module and basic card sending command module. Each specification deal command-processing module is divided into multiple set command interpretation code, each set code corresponding an application specification. Each specification data is stored in an independent subdirectory in card, configuring relevant sign as subdirectory attribute. When card operation system receives a command, said card operation system judges said command specification according to sign meaning subdirectory attributive, thereby handing said deal command to relevant specification deal command processing module to process. Sign setting increases card applied flexibility, reduces card sending cost; at the same time due to each set command interpretation code is designed according to corresponded card application specification, therefore said method overcomes test problem.

Description

technical field [0001] The invention relates to the field of smart card operating systems, in particular to a method for realizing a composite card operating system. Background technique [0002] At present, the application of smart cards in production and life is carried out under the guidance of specific application specifications. For example, smart cards used in the financial field must meet the specific requirements for smart cards in the "China Financial Integrated Circuit (IC) Card Specification", including The organization of data on the card, the commands that should be supported, and the process of exchanging data between the card and the terminal, etc. Another example is the smart card used in the petrochemical (vehicle refueling) field, which must comply with the "Sinopec Refueling Integrated Circuit (IC) Card Specification". Different specifications are independent, so that people must hold multiple smart cards to carry out different transactions, which is not ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06F9/06G07F7/08G07F19/00
Inventor 陆舟于华章
Owner FEITIAN TECHNOLOGIES
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