Design And Implementation Of Mini-financial System

The adoption of the modern computer and network technology, which defines internet as its core, in banking area enlarges banking service efficiency and scope as well as financial globalization. As a result, banking steps in to a new era—the era of Internet Banking, which is an overwhelming revolution in finance sector. The intelligent terminals can offer account information browsing, payment, transfer, inquiry functions through the WAP services, and people can enjoy the information services offered in the WAP site through the"browsers"installed in intelligent telephone (e.g. news, online games, email exchanges and the price trend of stock market). With the reason that the whole network and all the transactions are based on the public transmission line, the information of transaction has the possibility to disclosure and is vulnerable to the computer hikers, which afford an opportunity for hikers to steal customers'confidential information or disturb the normal internet operation through the distance hostile attack.This program amalgamates modern cryptography, computer technology, digital signal processing technology with the network access control according to the requirements of financial information security, as well as the national cryptography policy in order to develop a safe financial intelligent transaction system, and to solve the problems such as network access control, data security and data integrity.It adopts the highly-reliable industrial computer as its server cipher machine, hardware redundancy techniques which can better the reliability of the system, and can ensure that the cipher machine can run over time, and merge the access control with the cryptography technique to shelter information from illegible invade and attack; it establishes a key management center to realize the key security management; it designs an centralized supervision mechanism which combines the long-distance information transmission security audit with terminal safety module; encrypting and deciphering process are reduced to be open, transparent, simple and convenient; terminal cipher machine is structured with embedded system which can melt itself in intelligent information terminal; it enjoys high extendibility as well as cost performance; it also develops self-protecting mechanism which can reinsure the safety of key-using.In conclusion, intelligent transaction-safe system is a safe transaction system which consists of banking service system, terminal cipher machine (terminal safe module and safe function interface), server cipher machine, monitor server, and key management center. It can solve most of the security and confidential problems in the process of transaction information transmission.