Research And Implementation Of Secure Data Exchange Based On XML

With the development of economic globalization, electronic data exchange has become more and more important as a part of the trade competition. However, both traditional EDI technique was more complicated and its cost was more expensive, it was harder to run into medium-sized and small-scale enterprise. According to advantages of cross-platform and more structured , XML solved previously difficult problem in data exchange. As a good format of data exchange, XML has been the first in data exchange. But, due to XML is a file of plain text and over-bulky, it affects safety and efficiency of transfer's aspect during the transfer period. It's worthy to be concerned. In current years, XML is coming on to apply in China. Under the different standards of data exchange, the system provides define principles in practice when data exchange is safety, convenient and efficient in an enterprise or among more enterprises.Firstly, we discussed the development of data exchange and analyzed security problem of XML. Secondly, we introduced XML language and discussed the basic principles of security of XML. The principles include that XML encryption and signature. Thirdly, via the relationship between XML and relevant database (RDB), we solved the conversion problem between XML and RDB. Fourthly, we designed a secure system of data exchange base on XML. The system includes public modules, sending modules and receiving modules. We researched and provided variously safety solutions for the whole date exchange process and insured XML transfer which is absolute security and taking .NET technique to achieve application in the key part of exchange system. Finally, the thesis summarized this system and indicated the research directions and problems during the future works.