One-Time Pad Incoherent Encryption with Optical Meta-Ciphertext and Dynamic Visual Keys

Abstract

In today’s ever-evolving information security landscape, the demand for robust encryption techniques is on the rise. Superior to traditional encryption schemes, one-time pad encryption provides unparalleled security due to its reliance on a unique, nonreusable key for each message. Here, a novel one-time pad incoherent encryption paradigm based on optical metasurface ciphertext and dynamic visual keys has been developed. The proposed encryption scheme exploits the inherent security of the one-time pad by ensuring information confidentiality through the use of a random and nonreusable key. Based on this foundation, optical metasurfaces are initially used to encode the ciphertext and visual key, introducing an additional layer of complexity and security. In addition, the system incorporates dynamic visual keys using a spatial light modulator, adding dynamic and visually intuitive dimensions to the encryption process. These dynamic keys enhance the security of the communication channel by introducing variability into the encryption parameters, making it extremely difficult for unauthorized parties to predict or analyze cryptographic patterns. The result is a highly secure and robust incoherent encryption system that can be found to have potential applications in secure communication and data protection domains.