Research and Application of Data Security Protection Technology Based on Security Label

With the rapid growth of power grid scale and data volume, the traditional storage of relational databases, data integration and integration analysis methods can’t meet the needs of business applications. This paper teases the data of power grid business system, and studies data security label management technology, unstructured data label technology and structured data label technology. A flowchart of data authorization control process based on data label technology is proposed, which combines data with security control information such as classification, density and sharing scope through data label technology. In the process of data sharing, publishing and using, fine-grained authorization and control can be carried out based on label attributes. A unified data security protection technology method based on security label is proposed, which can realize the data security policy based on data classification and grade to define the whole life cycle of data, and further realize that the data of specific type and level can be used, stored or transferred by personnel of specific level. The method proposed in this paper can be widely used in many business scenarios, such as data access control, data kinship analysis, data behavior tracking, watermarking tracing of leaked data, etc.