Blockchain-Assisted Cross-Domain Data Governance for Social Computing

With the vigorous development of the social network, massive data have generated by large amount of users. To utilize these data, social computing is widely used. However, due to the conflict between proprietary data and the use of data, it is a challenge to fully obtain data value in an efficient and legal way. Moreover, how to manage, govern and schedule data, a technical and feasible approach is still a major problem. To this end, as an emerging distributed ledger technology, blockchain is considered a promising technology for data security and privacy and is introduced for cross-domain data governance. In this paper, we propose a blockchain-assisted cross-domain data sharing scheme for social computing data governance. Specifically, permissioned blockchain is introduced to construct trust among different parties. A zero-knowledge proof scheme is designed to verify data ownership confidentially and anonymously. The security of the zero-knowledge proof scheme is also analyzed. The extensive simulations and experiments have proven the effectiveness and efficiency of the mechanism.