Harnessing chaotic bifurcation in positive feedback transistors for secure and scalable random key generation.

ABSTRACT: In the era of big data, robust data security is more critical than ever. One promising way to create unpredictable random keys is to use the intrinsic physical randomness of electronic devices. However, controlling and reproducing this randomness remains a significant challenge. For the first time, we reveal a parabolic input-output relationship enabled by the band-to-band tunneling (BTBT) mechanism in a positive feedback transistor (PFT). By applying iterative operations, we observe chaotic bifurcation behavior, which allows the stable generation of analog random values across more than 10¹⁰ cycles. These random values are then used to encrypt and decrypt images, showcasing how encryption technologies can be implemented with just a single PFT. We also show that the charge-trap

SUBMITTER: Im J 

PROVIDER: S-EPMC12722202 | biostudies-literature | 2025 Nov

REPOSITORIES: biostudies-literature