Qi Dugong Security Information Network Security Policy And Implementation

The information net of Qi-du public security department has been established basing on the calculating model of the Internet Net Custom -Service device, according to the agreement, the TCP/IP using the Web DB and its techniques is decided to be established and managed .Inquiring the information for the customs is by the WEB skimming instrument and its expanding technique.For the special demand of the public security work , the safety of the public security net is more important ,it can influence the use and development of the whole Net.According to the need of Qi-du security information net safety ,the new computer technique has been used to realize the safety stratagem of Qi-du security information net .By analyzing the special construction and the using method and character and requirement of the security work , the significance of Qi-du security information net is explained ,all kind factors effecting the net safety has been analyzed in this article. In order to be suitable for the characteristic and the special inquiry of the public security work ,the whole scheme of the safety stratagem is established for the net of Qi-du security information .Basing on the introduction of several special kind of the calculating technique such as symmetry ,non-symmetry secret code ,analyzing the requirement for adding secret in Qi-du security information net ,the custom certification , date security and wholly is realized .Using the technique of visiting controlment rectangle ,by visiting custom dairy record the process of the custom's visiting is traced and kept under surveillance.The identity checking in Qi-du security information net is realized by checking the custom's account , password and IP address . By the 64 rank DES secret technique ,The password and the inquiring results of the custom is to be secreted for the date secret and entirety .The concentrating , grading , classifying inquest controlment is got by inquiring for the control rectangle model. The inquiry dairy record is to be formed of all connection with the custom.Introducing the fireguard wall technique and its realization briefly ,several fireguard wall technique has been used in the net of Qi-du security information net to forbid the IP cheat and the visitation to the interior date storement of out-net , using the TACACS+ technique to...