随着计算机时代的到来,信息技术的飞速发展,电子文件已经成为文件形成的主流,尤其是在以GPS定位技术极为普及的时代,地名、航测、城市管网建设等具有保密性质的档案的安全问题日益凸显,信息被盗事件日益增多,加强电 With the advent of the computer age and the rapid development of information technology, electronic documents have become the mainstream of document formation. Especially in the era of extremely universal GPS positioning technology, the security of confidential files such as place names, aerial surveys and urban pipe network construction The issue has become increasingly prominent, the information stolen incident is increasing, to strengthen electricity