Abstract:

The development of Internet and the combination of Internet and GIS have changed GIS greatly in the way of the data collection, information processing to data publication and use. However, the security risk of internet and the diversity of network attacks bring challenges for ensuring GSI’s security. Although there are some solutions to these problems, they can’t be widely utilized because of their limitations. In this paper the authors focus on solving the problem in data protection. Firstly, possible safety problems of GIS and current research situation will be briefly reviewed. Then, a new structured data protection method will be proposed to overcome the limitations of traditional GIS security scheme. According to the results, our method can reduce the risk of data security by a centralized application platform. Also, a fine-grained data access control can prevent unauthorized access. Moreover, the date theft behaviors can be quickly tracked by the delicate behavior audit and process marking. Through our structured data protection method, the illegal disclosure of important data can be prevented while the espionage can be deterred.

Key words: GIS, data security, structuralization