| Javacard is a new generation of smart card with a wide range of applications. TheJavacard system is realized by using virtual machine in software,this system softwareplatform takes up a lot of resources in itself. Its efficiency is not high enough, and can’tadapt to using in the application with special requirements (such as quick encryption anddecryption). After a deep research on Javacard system architecture and further analyze themain factors of the influence of Javacard performance, this paper put forward somecorresponding measures. Its achievements and innovation points are as follows:1. According to Javacard system resources and occupation of the software realizationof the Javavirtual machine card are limited, its execution efficiency is low, not adapt to allthe specific application, this paper puts forward the Javavirtual machine performanceoptimization scheme, to improve the utilization rate of Javacard and application serviceresponse rate.2. Analysis from the hardware design and the information storage to put forwardhardware support platform of Javacard performance optimization scheme.3. In the view of high Javacard CPU cost in the current market, we choose the generalCPU nuclear and software to realize JCRE, using real-time operating system to solve theJavacard single thread problems. This scheme will make the Javacard development moreefficient, greatly improved portability, and to be more practical. |
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