Secure RFID identification using partial identifiers and cryptographic secrets

Abstract

Traditional RFID user identification systems, which rely on tags storing and transmitting complete unique identifiers, face limitations in security and efficiency. This paper analyzes an innovative identification model whose core principle is that an RFID tag stores only a non-unique partial identifier and a unique cryptographic secret. Through a backend service-driven challenge-response protocol, the system dynamically and securely reconstructs the complete user identifier. This method enhances security through cryptographic authentication, reduces costs by decreasing tag memory requirements, and provides a scalable solution for privacy-preserving large-scale user identification.