A Blind Signature-based Location Privacy Protection Scheme for Mobile Social Networks

Xin Xu ； Mi Wen ； Liangliang Wang

《International Journal of Network Security》 23卷5期 (2021/09) Pp. 867-877

https://doi.org/10.6633/IJNS.202109_23(5).13

摘要

Location-based services (LBS) have gradually become an integral part of people's lives. In mobile social networks, we hope to protect our location privacy information in different environments and get services in time. However, scholars have proposed various effective location privacy protection strategies, such as k-anonymity, fuzzy location, etc. However, these privacy protection technologies are based on the location information obtained, and it is rarely achieved from the stage of location acquisition. In this article, we propose a privacy protection scheme based on blind signatures [9] for mobile locations. The solution uses a blind signature and pseudonym to verify the user's identity anonymously. It adds false information to form k-anonymity, which can flexibly protect the user's relevant information in different environments and achieve the two-stage privacy protection of LBS. Simulation results show that this method has better performance and higher security compared with other existing approaches, and it can be applied to different types of mobile environments.

關鍵字

Blind Signature ； Location Privacy Protection ； Mobile Social Networks ； User Collaboration