关键词: 公共数据, 开放共享, 安全风险, 数据安全, 隐私计算, 商用密码

Abstract: Data becomes the fifth key factor of production. The overall situation and strategic construction of Digital China relies on the digital economy, which makes the data as the key factor. Public data generated by government departments, enterprises and institutions at all levels in the process of performing their duties or providing public services in accordance with the law becomes an important source of data element supply. By analyzing the public data sharing mode and security risks, the data security sharing protection system is designed, which provides the balance mechanism for the main body of public data to achieve openness and security.

Key words: public data, open sharing, security risks, data security, privacy computing, commercial cryptogram