A lightweight key renewal scheme based authentication protocol with configurable RO PUF for clustered sensor networks

In clustered sensor networks, an adversary can easily capture and damage a member node. Therefore, it is important to detect the compromised nodes renew keys of all other nodes. Although many key renewal schemes have been proposed, detection still difficult achieve. Furthermore, due resources limitation, conventional encryption authentication protocols are impractical when we take power consumption resource usage into consideration. this paper, lightweight energy-efficient protocol scheme for networks was in which configurable ring oscillator (CRO) physical unclonable function (PUF) adopted enhance security. Typical CRO PUFs, including multiplexer (MUX) based PUF XOR gate PUF, analyzed compared. The proposed implemented evaluated on Zynq 7000 series SoC FPGAs. results indicate that structure cost efficient secure against major attacks networks.