A controllable sharing scheme of logistics data based on blockchain

With the development of cooperation and communication between different enterprises in the field of logistics, a challenge is that few effective ways can solve the contradiction between data sharing and privacy protection. In this paper, we propose a novel scheme against the contradiction. Benefitting from the performance of blockchain and smart contract technology, we realize the identity authentication, data exchange and transaction process among different stakeholders. At the same time, the shared data is encrypted with Ciphertext-Policy Attribute-Based Encryption (CP-ABE) technology, so as to achieve the confidentiality protection and access control during the process of data sharing. In addition, by introducing the Handle system, we participate in data sharing through data identifiers to keep the data on the local server and enhance the security of the data. In summary, the scheme combines Blockchain, CP-ABE and Handle technologies to provide an efficient and secure new approach to data sharing among collaborators with data sharing needs in the logistics field.