Research And Application Of Interactive Data Encryption Method For Multi-source Information Aggregation Service System

Classical Information Service System(ISS)utilizes code files to design,develop,store,maintain,manage and upgrade systems,which not only have low visualization and inconvenient testing problems,but also difficult to meet the ISS requirements of rapid development,deployment and maintenance.At the same time,ISS sites still have information security issues for data transmission,because different terminal communication channels support different levels of information security.Therefore,the thesis designs and implements a modular multi-source information aggregation service system,which is used to improve the development efficiency of traditional ISS sites,reduce the coupling between system modules and reduce the complexity of module development.Moreover,the thesis designs an interactive data encryption method to improve the data security of ISS sites.The specific research work can be described as follows:1.Firstly,the art-to-update reviews of ISS sites and cryptography are insightly presented for my study.Secondly,the technical basic framework that constitutes ISS sites is discussed in detail.Finally,the thesis comprehensively explains the encryption process of the standard DES symmetric algorithm and the standard RSA asymmetric algorithm in the theoretical methods of cryptography.2.For the architectural problems of ISS sites,a multi-source information aggregation service system is designed and implemented.Firstly,based on the Model-View-Controller(MVC)development model of traditional ISS sites,the thesis conducts demand analysis from the aspects of system modeling,user roles,information aggregation and functional code integration,application module expansion,information security and proposes a multi-source information service system architecture with code visualization programming and module reuse.Secondly,according to the overall system architecture,the module function framework and implementation plan are designed for the main function modules which includes data modeling and database,user and permission management,code visualization,service logic processing,information aggregation,resource sharing,etc.Finally,through the AMP service platform,a multi-source information aggregation service system is realized,and application tests have been carried out in Firefox browser and Dream Weaver editor.3.Considering ISS sites security problem of data transmission,an interactive data encryption method is designed.The method is divided into symmetric interactive data encryption method and asymmetric interactive data encryption method: the symmetric interactive data encryption method is suitable for encrypting and protecting large-scale transmission data.It is designed based on the principle of DES symmetric encryption.In order to realize the concealment of the encryption process and the complexity of generating ciphertext,it designs the byte expansion strategy,the server-side key strategy and the session random sequence code binding strategy;The asymmetric interactive data encryption method is suitable for encrypting and protecting small-scale transmission data,which is realized through the principle of RSA asymmetric encryption.In addition,it designs the improved prime number determination strategy and the parallel exponential conversion multiplication strategy to improve the execution efficiency of the encryption and decryption process.Meanwhile,the interactive data encryption method is tested on the experimental performance and the actual system performance.According to the testing results,the effectiveness of the interactive encryption method is verified.