Study On Safety Technology Of Online Security Exchange

Security problems can be caused when many traditional trade modes are applied on internet, for example, traditional security exchange and cash transfer between banks and brokers, protection method of exchange data, EDI, management of daily exchange information, etc. Although the large-scale use of e-business has been for only several years, many companies have developed relevant products. Because of the variety of e-business, security problems concerned are different, But the core is the security of e-business exchange on internet.First, the thesis introduces the concept of e-business and concerned hidden trouble of security. E-business is various business affairs on internet and concerned technology, so the security of e-business is highly relevant with the security of network. The thesis analyzes concerned hidden trouble of network security, common used method of network attack, the system structure of information system, hierarchy of network security, security evaluation rule of information system, and analyzes the problem of e-business which shall be solved.And then the thesis discusses about security exchange on internet桝 mode of e-business. Security exchange on internet is to try to buy or sell securities and other query operation via internet. The rapid development of security exchange on internet in recent years requires the improvement of the security of exchange on internet and various encryption methods must be used because of the flow of security exchange on internet decideIn the next chapter, the thesis analyzes the common encryption technology, introducing two common encryption arithmetic (symmetry encryption arithmetic and non-symmetry encryption arithmetic), like DBS, CA Authentication, RSA, Digital Signature and the implement of them.In addition, the thesis analyzes the implement of digital signature and arithmetic, discusses CA, non-symmetry encryption system, and the application ofsecurity exchange on internet.At last, using delphi(A Rapid programming tool), the thesis implements client-side and server-side's program. The program simulates the flow of security exchange on internet, including data encryption ,digital signature of client-side, data decrypt of server-side, integrality validation and analyzes the security of simulation system.Along with the advancement of technology, traditional encryption arithmetic is facing challenge. More intensity encryption arithmetic has come forth in the near future. If these methods are applied to e-businesses, the data security of security exchange on internet will be highly improved, and it will build up the confidence of people toward e-businesses.