Zero-Knowledge Authentication
Jakob Povsic, Andrej Brodnik

TL;DR
This paper proposes a zero-knowledge proof-based authentication system utilizing quadratic residuosity to enhance security over insecure networks, integrated within the extensible authentication protocol.
Contribution
It introduces a novel authentication method combining ZKP with EAP, leveraging quadratic residuosity for secure password verification.
Findings
Provides a secure password verification mechanism using ZKP
Enhances security over insecure networks
Integrates ZKP into EAP protocol
Abstract
In the thesis we focus on designing an authentication system to authenticate users over a network with a username and a password. The system uses the zero-knowledge proof (ZKP) system as a password verification mechanism. The ZKP protocol used is based on the quadratic residuosity problem. The authentication system is defined as a method in the extensible authentication protocol (EAP). Using a ZKP system yields interesting security properties that make the system favourable to be used over insecure networks.
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Taxonomy
TopicsAdvanced Authentication Protocols Security · Cryptography and Data Security · Cryptographic Implementations and Security
