EBSS: A secure blockchain-based sharing scheme for real estate financial credentials

Yadi Wu, Guiyao Tie, Yao Yu, Jianxin Li, Jun Song

Abstract: With the development of Internet finance, the real estate financial credentials have been extensively utilized in capital and trading markets. The extensive use of these private credentials, e.g., exchange, circulation or sharing on public clouds, can cause severe security and privacy problems. Existing security solutions for financial credentials may either introduce undesired overhead or fail to provide traceability and anonymity for data sharing. In this paper, we propose an enhanced blockchain-based secure sharing scheme for real estate financial credentials, providing the following three properties: credential confidentiality, anonymous authentication, identity tracking and transaction auditing. A comprehensive evaluation, including security analysis, efficiency analysis and simulation evaluation, is presented to show the security and feasibility of the proposed scheme.