Using Zero-Knowledge Proof in Privacy-Preserving Networks

Abstract

The role of digital identity systems in today’s cyber infrastructure is pivotal to providing secure access to online services. Privacy-preserving mechanisms, however, are becoming more important as cyber threats develop. Especially in large networks, zero-knowledge proofs (ZKPs) are an effective way to enhance privacy in digital identity systems. When used during authentication, they protect the privacy of user data by verifying knowledge to another entity without unveiling the actual data. A ZKP can also reduce identity theft risks, mitigate man-in-the-middle attacks, and enhance security when integrated into privacy-preserving networks. In this paper, we examine the role that ZKPs play in privacy-preserving networks and the possibility of using them in this regard, in order to gain insight into their application in digital identity systems.