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

Applied Sciences

Qiuhua Wang¹  Tianyu Xia¹  Yizhi Ren¹  Lifeng Yuan¹  Gongxun Miao² 

[1] School of Cyberspace, Hangzhou Dianzi University, Hangzhou 310018, China;Zhongfu Information Co., Ltd., Jinan 250101, China;

关键词: location sharing;    privacy preserving;    blockchain;    Merkle tree;    smart contract;    attribute-based access control;   

DOI  :  10.3390/app11052260

来源: DOAJ

【 摘 要 】

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

【 授权许可】

Unknown