Adaptive online/offline RFID scheme for supply chain management systems

This paper is concerned with RFID tagged objects in a supply chain management system. Such objects are read by multiple readers both in known locations (secure zone with online readers) as well as unknown locations (insecure zone with offline readers). In the secure zone, the primary requirement is to read a large number of tags with high speed. In the insecure zone, the primary requirement is to preserve the privacy of a tagged object. We present an EPCglobal Class-1 Gen-2 Version 1.2.0 standard compliant scheme which allows RFID tags to be authenticated by readers throughout the supply chain lifecycle while meeting the requirements of both the secure and insecure zones.