| With close combination with the demands of tax-electrization in China,this paper pays attention to the existing issues of data veracity,data secrecy , identifying identities of each other and anti-resistance of each other in the course of tax declare in web.The structural frame of tax-declare system in web and the secrecy of the FORM in the course of tax-declare is researched in this paper with the tools of fundamental facility of PKI public key.The research in detail is as following:The information secrecy stratification model is creationarily put forward and the function and task of each layer is also present based on the analysis in details of fundamental encrypt arithmetic and using the best fundamental application protocaol of password in PKI mechanism. The emphasis of the thesis focused on the highest layer of the model makes the research more undivided and deepened.The emphasis of this paper is design for secrecy of the FORM of tax-declare in web.The insecurity factors existing in each stage are concretely analyzed and the methods of solution for them are put forward by download,referring and save process of general tax FORM.A best powerful and effective weapon is to use data signing and the information of time stamp.From the level design of security of FORM ,a safe and secret FORM is obtained.It is fitted to the place of high security requirement.The structural frame of the tax-declare system in web is founded,the complicated business flow of the tax-declare in web is grasped and its database is designed.The database and entry pages are designed according to different type of tax.The simulation of its working process has shown that the database is general and integrated,the entry system can meet the requirement of tax-declare ,and the system works steadily and reliably. |
