Second Harmonic Generation Exploiting Ultra-Stable Resistive Switching Devices for Secure Hardware Systems

In the era of Big Data and Internet Things (IoT), information security has emerged as an essential system application metric. The exchange among ubiquitously connected smart electronic devices requires functioning reliably in harsh environments, which highlights need for securing hardware root trust. this work, by leveraging uniform nonlinear resistive switching emerging electroforming-free analog memristive device based on $\mathbf {BiFeO}_3$ (BFO) thin film, security-oriented primitive (SoHP) is developed optimized with high-security level. SoHP utilizes distinguishable power conversion efficiency generated at second higher harmonics low resistance state (memristor diodelike behavior) high devices. By exploring significant influence writing bias operational frequency sourcing input voltage dynamic behavior device, novel 2-memristor encoding scheme 1-memristor decoding are system, realizes a enhancement 4000 times comparison to scheme. encoded data bits that from physically implemented pass diverse statistical test suites (i.e. ENT, BSI, NIST SP-800.22 suites), indicates randomness distribution level proposed system.