Design and Implementation of Novel Power Glitch Detector

With the development of informatization,digitization,automation and interaction,smart grid is required,through electronic terminals of between the users and power grid corporation,to realize interaction and immediate connection and implement real-time and high-speed data collection and reading.Network interconnection and information collection,due to the growing security attacks,are encountered with serious infosec problem.Power glitch attack,that is,the sudden change of power-supply voltage,is the most common attack mode,this mode,through injecting faults into the electronic device,makes the security device in a wrong operation state and thus obtains the confidential information.This paper proposes a novel detector for capturing these malicious attacks.The detector first samples the power glitch signal,then through comparing the sampled signal with the reference voltage after operation process,determines whether the glitch signal could constitute an attack or not,and finally,if the glitch signal constitutes an attack,the detector would generate and latch the alarm signal for system processing.Mathematical derivation and simulation results indicate that this detector is low in power consumption,not affected by the attacked DC voltage,and could detect wide glitch frequency range.Therefore,the detector could be widely applied in the smart card,smart terminal and power acquisition terminal,thus avoiding the information disclosure the power glitch attack.