Experimental demonstration of synchronous privacy enhanced chaotic temporal phase en/decryption for high speed secure optical communication

Abstract

Protecting confidential high speed optical signal transmission at the lowest physical layer is a critical challenge for modern fiber-optic communication systems. In this paper, we experimentally demonstrate a novel synchronous privacy enhanced chaotic temporal phase en/decryption scheme for high-speed physical layer secure optical communication. A remote chaos synchronization architecture relying on common source signal driving and private response hardware modules comprising of dispersive components and slave lasers is employed to generate synchronized private chaotic en/decryption signals, and simultaneously suppress residual driving-response correlation for enhancing the security. A proof-of-principle demonstration by secure transmission of a 28 Gb/s on-off-keying modulated confidential signal over 100 km single mode fiber link based on the private chaotic temporal phase en/decryption scheme is successfully achieved. The demonstrated hardware optical en/decryption approach may provide a promising way towards future ultra-high speed physical layer secure optical communication systems.

Exploiting high-quality reconstruction image encryption strategy by optimized orthogonal compressive sensing

“…In the wake of the rapid evolution of computer communication and network technologies, diverse forms of data and information are being disseminated through networks with increased frequency, broader reach, and heightened velocity 1 – 3 . The emergence of these requirements for information interchange, particularly in ensuring a more secure transmission environment, has been noteworthy 4 – 6 .…”

High-speed physical layer secure communication scheme based on synchronous chaotic and electro-optic self-feedback dual-phase encryption

“…Until recently, Jiang et al innovatively introduced the synchronous chaotic signal into the temporal and the phase scrambling for the information en/decryption [22,23]. On this basis, we also propose an innovative scheme that skillfully applies dispersion to the chaotic side [24], which has reduced the master-slave correlation to an extremely low level. By modulating chaos onto the phase and subsequently encrypting the signal, the chaos bandwidth limitation for covering the confidential signal can be properly addressed, but the bandwidth itself remains in constraint for better employment.…”

Secure image encryption algorithm using chaos-based block permutation and weighted bit planes chain diffusion

“…The results provide a solid foundation and practical solutions for chaos generation and image encryption. 36 , 37 , 38 , 39 These achievements mean that many encryption algorithms have shown satisfactory results in several areas, 40 , 41 , 42 , 43 which have significantly advanced the field of information security technology. 44 , 45 , 46 , 47 However, as society develops, the exponential growth of information poses significant challenges to previous algorithms.…”