Design And Implementation Of The People's Bank Intranet Security Transmission System

As China's central bank, the People's Bank of China(PBC) formulates and implements monetary policy, prevents and resolves the financial risk and safeguards financial stability. It plays an important role in steering the country's economy. With the enhancement of financial computerization, every application in the PBC depends computer and network more and more, thus the security of the application and network system becomes the serious problem.The paper analyzes the secure problem existing in the TCP/IP protocol, discusses the possibility and superiority of secure transmission in network layer, researches the architecture of protocol IPSEC, presents the design thought of using IPSEC to realize the secure transmission within the PBC'S intranet under the Windows.The paper gives a schema of secure transmission system in the PBC'S intranet, realizes it using the Windows kernel program technology and obeying the specifications of NDIS and IPSEC. The secure transmission system promotes the secure extent of the PBC's intranet.