Application of Memristors in Hardware Security: A Current State-of-the-Art Technology

Memristors are widely used in hardware security applications. Research progress in memristor-based physical unclonable functions (PUFs), random number generators (RNGs), and chaotic circuits is reviewed. To enhance device security, PUFs and RNGs apply randomness of memristors and incorporate 3D crossbars to amplify the number of challenge-response pairs and provide proof of the destruction of the key, which enables the administrator to firmly control the device information. In addition, the image encryption technique based on the chaotic system is summarized. Furthermore, an assessment of the research advancement in PUFs, RNGs, and chaotic circuits is conducted. This Review examines the characteristics, applications, progress, and challenges of memristors in hardware security and compares the benefits and limitations of different schemes as accelerators for hardware information protection.

Automated summary

Research on memristors in hardware security applications, particularly in the areas of PUFs, RNGs, and chaotic circuits, has shown promising advancements. By leveraging the randomness of memristors and introducing 3D crossbars, device security can be enhanced, leading to a greater number of challenge-response pairs and providing evidence of key destruction.