A synthetic application realization method of a cpu card with multi-application cos

Abstract

The invention discloses a composite application implementing method for CPU (central processing unit) card with a multi-application COS (chip operating system). The composite application implementing method includes: creating a composite application of the CPU card with the multi-application COS; establishing a primary application object containing composite data objects; establishing a primary application safety control object, a composite data object and a non-composite data object under the primary application object, and setting access safety attribute of the primary application; setting up a secondary application object, setting up a secondary application safety control object, a reference object and a non-reference data object under the secondary application object, and setting access safety attribute of the secondary application; selecting branch application objects in the composite application by utilizing composite application of the CPU card with the multi-application COS; and judging the requirement for access safety attribute, accessing composite data in the composite data objects by accessing and operating interfaces, and keeping data synchronization. By realizing data synchronization with other branch applications, the purpose of application compositing is achieved on the premise of guaranteeing data integrity and transaction safety.

Description

technical field [0001] The invention relates to a synthetic application method of an IC card, in particular to a synthetic application realization method of a CPU card with multi-application COS. Background technique [0002] At present, the accelerated development of the gold card project has increased people's demand for card payment. CPU cards have the advantages of high security, strong functions, and high reliability, and are increasingly used in various industry applications. [0003] The CPU card has a microprocessor inside, and the on-chip operating system (COS) running on it manages various behaviors of the card. With the support of COS, various card applications can be realized. [0004] With the continuous expansion of application requirements, the application environment tends to be more complex and diversified. The multi-functional application of CPU cards has become an important direction for the development of smart card technology. Promoting "one card with m...

AI Technical Summary

Problems solved by technology

It can be seen that the data in different applications is isolated. This is due to the consideration of setting up a security firewall between different applications, but this also results in the fact that different applications cannot share information unless one application can read and modify other applications. data in the application

However, cross-application operations will affect the security protection of information, especially the integrity of transactions cannot be guaranteed in cross-application transactions, resulting in the inability to guarantee the entire data security and abnormal transaction data, while violating the basic security requirements in the PBOC standard

[0009] However, with the popularization and application of one card with multiple functions, the original multi-application card mainly solves the simple combination of multiple card functions, which can no longer meet the needs of applications, such as the need to realize joint payment in a cross-industry application environment

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