Design And Realization Of Safe Barcode Checkout System Based On Web Service

Tenochlogy of bar code comes out with the rapid development of technology of computer and information.It's a new technology which put code,press, distinguish, data collection together.Nowadays, EAN code, UPS code, two-five code, three-nine code and one hundred and twenty-eight code and so on are widly used in the world, but the widliest used of them in commodity is EAN code. As the only identifier of commodity, it plays an important role in our lives. And in the Process of checking out commodity, it's a very necessary work that checking up commodity by bar code.In recent years, Web Service has developped rappiedly.Relative to tradition application technoloy, the most predominance of Web Service is to offer non-slot link up mode in different compose platform, which can communicate cross different platform. For its repeat use widly in software and Smart develop mode, Web Service is popular with more and more people.So it's a convenient way to complete checking out commodity by Web Service.However, for the openess of Web Service, the safety of Web Service is regardied as an more and more important task. This paper analyse the status of barcode checkout system and introduces the advantage of the technology of Web Service at first, then lists the possible attacks and threats which would be faced by Web Service now, and provides the safe technologies which can solve these threats.Then, the paper analyse the demands of function and safety, and designs a bar code checkout system which will be completed by Web Service. This system adopts correlative safety technology of Web Service, including soap header validation, soap expansibility encryption and certificate validation by WS-Security. These technology can ensure the safety and integrality of data coummuicaiton in transfering the services.Then the paper completes this bar code checkout system, and test this system , and analyses the test result of the system and expect the new future.