【摘 要】
：
At present,the traditional way of accessing to classified network in geographic spatial information services is using network gatekeeper and firewall etc.to
【机 构】
：
Faculty of Land Resource Engineering,Kunming University of Science and Technology,Kunming 650093,Chi
【出 处】
：
“地理空间数据库与位置服务”国际学术会议
论文部分内容阅读
At present,the traditional way of accessing to classified network in geographic spatial information services is using network gatekeeper and firewall etc.to ensure public and classified network communications links.However,the physical isolation between classified network and public network is crossed,which is bound to cause classified network potential security hazard.In Yunnan province space Land dynamic monitoring integration project,it proposed the point to point text message communication protocol and asynchronous transmission mechanism.Using geo-spatial information encryption processing and data compression processing method,it reduced the risk of data sensitivity and monitored,namely to ensure data security,which realized geographic spatial information services data communication effectively between classified network and public network in the rigid field conditions.
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