The Research & Realization Of Tax System Network Security Protection System

With the construction of taxation information unceasingly thoroughly,Taxation office by traditional tax hall to electronic tax hall transformation,A lot of Taxation information needs transmission in the computer network,so, Ensure the computer network security of taxation system is very important.In recent years,Computer virus frequent outbreaks,Hackers events intensified,The computer network of tax system faces unprecedented threat,so,The safety protection system of tax should be improved.At present,The safety protection system of tax is still relatively weak,Safe protection system mainly deployed some firewall,Intrusion detection system (IDS) and Anti-virus system,For tax network boundary on access control,Not the confidentiality and integrity of the information provided protection,Could not determine the true identity information transceiver both sides.According to the taxation system safety protection system present situation,The author carries on the comprehensive analysis,and proposes a solution,Design CA system of Heilongjiang national taxation,The system mainly consisted of four modules,Key management module,Certificate management module,Certificate enrollment module and certificate issued module.The system provides certificate production,encryption,issue, update cancellation, and other functions.Papers in CA system design aspects adopted PKI technology,Adopted symmetric and asymmetric-key algorithm,From the two aspects of function and structure design of the system framework,realized the business process and system function,CA system and tax system are combined,Encryption tax information or signature tax information,Ensure tax information confidentiality, integrity and undeniable,Reduced tax system security risk.