A Blockchain-Based Identity Control Scheme for Cross-Organizational Data Sharing

Interconnected systems have given rise to a surge in data sharing among multiple organizations, highlighting the growing necessity for cross-organizational collaboration. However, due to a lack of trust, there are security concerns due to different organizations located in different security and privacy legislative jurisdictions and culture. On the other hand, an organization may have many different departments or sub companies, all using one identity to conduct data sharing and exchanging may cause management confusion and unclear responsibilities. Therefore, in a data sharing system, people should introduce strengthened but efficient identity control mechanisms to provide fine-grained cross organizational data access and exchange requests. Due to higher security costs, modern identity control schemes typically focus on protecting a single target rather than multiple parties, and multiple parities always have a strong demand to connect other systems. In this article, we present a blockchain-based identity control scheme aimed at promoting lightweight data sharing among diverse organizations. Furthermore, we have conducted a comprehensive evaluation of the system model to confirm the efficacy of the proposed scheme presented in this paper.