SecuCode: Intrinsic PUF Entangled <u>Secu</u>re Wireless <u>Code</u> Dissemination for Computational RFID Devices

The simplicity of deployment and perpetual operation energy harvesting devices provides a compelling proposition for new class edge the Internet Things. In particular, Computational Radio Frequency Identification (CRFID) are an emerging battery-free, computational, sensing enhanced that harvest all their operation. Despite wireless connectivity powering, secure firmware updates remains open challenge CRFID due to: intermittent limited computational capabilities, absence supervisory operating system. We present, first time, code dissemination (SecuCode) mechanism CRFIDs by entangling device intrinsic hardware security primitive Static Random Access Memory Physical Unclonable Function (SRAM PUF) to update protocol. design SecuCode: i) overcomes resource-constrained intermittently powered nature devices; ii) is fully compatible with existing communication protocols employed in ISO-18000-6C protocol; built upon standard industry compliant compilation method realized extending recent framework provided Texas Instruments. build end-to-end SecuCode implementation conduct extensive experiments demonstrate standards compliance, evaluate performance security.