Privacy-Preserving Contact Tracing Protocol for Mobile Devices: A Zero-Knowledge Proof Approach
Published in International Conference on Information Security Practice and Experience (ISPEC 2021), Nanjing, China, 2021
Recommended citation: Joseph K. Liu, Man Ho Au, Tsz Hon Yuen, Cong Zuo, Jiawei Wang, Amin Sakzad, Xiapu Luo, Li Li, and Kim-Kwang Raymond Choo. “Privacy-Preserving Contact Tracing Protocol for Mobile Devices: A Zero-Knowledge Proof Approach.” In Information Security Practice and Experience (ISPEC 2021), pp. 327–344, 2021. https://doi.org/10.1007/978-3-030-93206-0_20
This paper presents a privacy-preserving contact-tracing protocol for Android and iOS devices. It uses zero-knowledge proofs to hide users’ location and contact histories while preventing false-positive reports, and includes implementations that demonstrate practical scalability.