Based on the analysis of the security problem existed in Longquanyi official business operation system, the thesis has given the requirements of Longquanyi official business operation system; combined with the experiment and promoting of the Nation Electronic Government Affair, it put forward a security system of official business system in the field of operation security, and suggest the specific security solution.This system has established a close secure running mode in the operation layer, it can audit strictly in foreground business platform, network transmission, background process etc., and can combine with lots of network security technology based on the network layer, link layer and physics layer, thus it ensured the whole official business system to be safe. The proposals have practical direction significance for the promoting of the business system of the electronic government affair.
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