A Construction Process Of Information Security System For Requirement Of World-Wide Co-Operative Development In Large Aircraft Manufacture

With the globalization process in manufacture of large aircraft, communications and cooperationare well needed in different manufacturers, thus more and more information security issues areconcerned. To meet the information security requirements in the global cooperation, the research inthis article is aimed at a perfection of information security framework and technological system，which is based on the existing system. The research is carried on in four phases. Firstly, therequirement of information security is analyzed in details in term of system structure, logic module,infrastructure, system security, protocol algorithm, etc. Secondly, the existing system is improvedtechnologically to meet the state’s information security criteria. Some critical problems in the processof framing an information security system under cooperative circumstance are analyzed in this phaseas well. Thirdly, a data packet testing system is designed and constructed to meet the requirement foranalyzing and testing bulk data transmission in different manufacturers. Based on a net structure, adata transmission project is proposed. Finally, based on the data which are collected from themonitoring system, the effects of networks and packaged data in different situations on differentmodule matching algorithm are analyzed. The algorithm is improved by analyzing the dynamic dataset. The research also tries to build a new module string by studying laws of data-filter and possibilitydistributions of module string in text string. It gives a hierarchical matching algorithm to original dataset, and makes an experimental test on this algorithm.