Zero-Knowledge Location Privacy via Accurate Floating-Point SNARKs
Jens Ernstberger, Chengru Zhang, Luca Ciprian, Philipp Jovanovic, Sebastian Steinhorst
IEEE Symposium on Security and Privacy 2025 · Day 3 · Zero Knowledge
In an era where location-based services (LBS) are deeply integrated into daily life, the pervasive collection and processing of geospatial data raise significant privacy concerns. From mapping applications and cellular networks to transportation platforms like Uber, individuals' precise location information is constantly gathered, often without adequate protection, leading to inadvertent or intentional leaks of sensitive data. This talk, presented by Chengru Zhang and co-authored with Jens Ernstberger, Luca Ciprian, Philipp Jovanovic, and Sebastian Steinhorst, addresses this critical privacy challenge by proposing a novel solution: **zero-knowledge location privacy** via accurate floating-point SNARKs.