A New Blockchain-Based Multi-Level Location Secure Sharing Scheme

Currently, users’ location information is collected to provide better services or research. Using a central server collect, store and share has inevitable defects in terms of security efficiency. the point-to-point sharing method will result high computation overhead communication for users, data are hard be verified. To resolve these issues, we propose new blockchain-based multi-level secure scheme. In our proposed scheme, set hierarchically shared with requester according user’s policy, while received can For this, design smart contract implement attribute-based access control establish an incentive punishment mechanism. We evaluate experimental results show that scheme much lower than existing Finally, analyze performances demonstrate is, overall, schemes.