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Research and Design of the JCRE Platform Structure

Author: XuHongNing
Tutor: LiDaiPing
School: Guangdong University of Technology
Course: Applied Computer Technology
Keywords: JCRE Platform structure Security mechanism Installer Delete Manager
CLC: TP311.52
Type: Master's thesis
Year: 2011
Downloads: 22
Quote: 0
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Abstract


IT development process of time and space is a challenge on 3G era, people pursue to achieve more efficient and more powerful features in less space. Dynamic multi-application smart card industry welcomed the spirit of \incalculable. Java smart card applications program's running environment (the Java smart card the Runtime Environment referred JCRE) is one of the core part of the Java Smart Card Research of secure and reliable execution environment for the application, its security and the implementation of the efficiency of the decision the entire Java smart card's performance and application promotion prospects. Abroad in this respect technology relatively mature, domestic many Java smart card run providers are references of foreign technology, but need to foreign countries to pay royalties, in the country although it was to study Java smart card technology but technology backward and technological blockade, which seriously affect our Java smart card the development of the technology. The JCRE Is smart card-based applications running platform the lower package based on the operation of the underlying hardware interface and file system. JCRE is primarily responsible for the management and control of multi-application security is a small operating system, and draw on Principles of Database Systems, knowledge of the operating system design implementation. The paper detailed analysis of the JCRE system structure, in terms of security mechanisms, research and analysis application isolation mechanism, context switching, transaction processing and other principles, drawing on the scene in the operating system interrupt processing principle to protect ideas and stack data structure proposed the context array storage subscript operator processing ideological saving certain stack structure space. Transaction and transaction processing will all need to update the data backup protection and encounter data update backup update data, reducing the amount of backup data, but in the transaction process. The combination of smart card application management features designed Installer (Installer) Remove Manager. Install pre-parsed programs to meet the application execution and scheduling efficiency and resolve after application to minimize space occupied. The JCRE control applet instance life cycle, in the the applet application code pre-parsed parsed and saved in the applet management table applet actual address important public, is a major highlight of the paper, improve the speed of JCRE control applet instance. File system space allocation and recovery mechanisms, instead of using the file system management applications in the form of direct address access application management, reduce file inherent space and progressively open access time but did not greatly improve the entire run of the Java Card platform execution speed, thereby improving the performance of the entire Java smart cards. In short, the of the JCRE platform research and design from multiple improved storage management structure, minimize occupied space and time efficiency as high as possible. Java smart card applications run platform design is safe and reliable, fully meet the commercial standards.

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CLC: > Industrial Technology > Automation technology,computer technology > Computing technology,computer technology > Computer software > Program design,software engineering > Software Engineering > Software Development
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