Article
Computer Science, Information Systems
Surendra Kumar Nanda, Suneeta Mohanty, Prasant Kumar Pattnaik, Mangal Sain
Summary: Reversible cellular automaton provides enhanced throughput in cryptographic applications and is highly parallel. Optimized throughput algorithms perform better in high-performance systems with multiple CPU or GPU cores. Using different random numbers as seeds can make plaintext blocks immune to other blocks during cryptanalysis.
Article
Computer Science, Information Systems
Roghayeh Dehghani, Hossein Kheiri
Summary: A new image cryptography algorithm based on new second-order recursive cellular automata (RCA), DNA sequences, and hyper-chaotic system is proposed in this manuscript. Unlike the customary permutation-diffusion structure, this algorithm adopts a newly three-layer structure, diffusion-permutation-diffusion. The proposed algorithm achieves random redistribution of pixels, removal of high correlation among adjacent pixels, and increased complexity and security using new recursive cellular automata, Arnold cat's map, DNA sequences, and key stream.
MULTIMEDIA TOOLS AND APPLICATIONS
(2023)
Article
Computer Science, Information Systems
Rupali Bhardwaj
Summary: This paper presents an enhanced reversible data hiding algorithm based on cellular automata for secure communication in E-medical platform. The proposed method embeds electronic patient information in different numeral frameworks and encrypts them using Paillier cryptosystem. Experimental results demonstrate that the method achieves high embedding rate and accurate recovery of the embedded information.
MULTIMEDIA TOOLS AND APPLICATIONS
(2022)
Article
Computer Science, Information Systems
Xiaojuan Ma, Chunhua Wang
Summary: This paper proposes a hyperchaotic image encryption system based on the improved Joseph algorithm and reversible cellular automata. The encryption algorithm is highly sensitive to the original image and effectively hides pixel information, increasing the encryption performance and resistance against attacks. Simulation experiments and safety analysis demonstrate the algorithm's effectiveness in resisting various attacks.
MULTIMEDIA TOOLS AND APPLICATIONS
(2023)
Article
Computer Science, Information Systems
Alberto Dennunzio, Enrico Formenti, Darij Grinberg, Luciano Margara
Summary: This paper provides decidable characterizations for additive cellular automata over a finite abelian group, including injectivity, surjectivity, equicontinuity, sensitivity to initial conditions, topological transitivity, and ergodicity, which are important for designing applications based on additive CA. The authors also discuss how these results can be utilized in cryptographic applications and propose modifications to existing schemes to enhance security and increase the difficulty of attacks.
INFORMATION SCIENCES
(2021)
Article
Physics, Multidisciplinary
Vladimir Garcia-Morales
Summary: This article reports on the replication of arbitrary patterns by reversible and additive cellular automata, providing an explicit description of the orbit and replication process under specific conditions.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2022)
Article
Computer Science, Theory & Methods
Debrup Chakraborty, Avijit Dutta, Samir Kundu
Summary: The paper discusses constructing a tweakable enciphering scheme using public random permutations, proposing a specific construction method for a single-keyed TES.
ADVANCES IN MATHEMATICS OF COMMUNICATIONS
(2021)
Article
Engineering, Electrical & Electronic
Mingji Yu, Heng Yao, Chuan Qin, Xinpeng Zhang
Summary: This paper proposes a novel comprehensive measure to evaluate the performance of stream-cipher-based reversible data hiding algorithms, taking into consideration the influence of encryption schemes. By categorizing the characteristics of encryption and embedding processes, and using correlation, redundancy, embedding rate, computation complexity, visual quality, and algorithm stability as evaluation indexes, this method provides a more reasonable comparison of RDHEI algorithms. The experimental results demonstrate the guiding significance of the proposed method for current RDHEI algorithm selection.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
(2022)
Article
Multidisciplinary Sciences
Alla Levina, Daniyar Mukhamedjanov, Danil Bogaevskiy, Pavel Lyakhov, Maria Valueva, Dmitrii Kaplun
Summary: The practice of developing data confidentiality algorithms lacks some important features such as velocity and predictability. This paper presents a new algorithm for generating pseudorandom numbers on cellular automata, which is fast, repeatable, unpredictable, and can be used in cryptographic systems. Experimental results show that the proposed algorithm significantly outperforms existing methods and algorithms in terms of statistical testing.
Article
Computer Science, Information Systems
Lanhang Li, Yuling Luo, Senhui Qiu, Xue Ouyang, Lvchen Cao, Shunbin Tang
Summary: A new image encryption algorithm is proposed in this study, using chaotic maps and Cellular Automata to increase the sensitivity to plain-images and enhance security.
MULTIMEDIA TOOLS AND APPLICATIONS
(2022)
Article
Physics, Multidisciplinary
Katja Klobas, Tomaz Prosen
Summary: This paper introduces a pair of time-reversible models defined on the discrete space-time lattice, and investigates the local update rules, the grand canonical Gibbs states, and the spatio-temporal correlation functions of charge densities. The study explores the equilibrium and glassy behavior mechanisms of the models.
JOURNAL OF PHYSICS A-MATHEMATICAL AND THEORETICAL
(2022)
Article
Engineering, Electrical & Electronic
Fan Chen, Yuan Yuan, Hongjie He, Miao Tian, Heng-Ming Tai
Summary: The proposed RDH-EI method focuses on minimizing the file size of encrypted images to vacate space for data embedding, while ensuring format compatibility and lossless reconstruction. Experimental results demonstrate higher embedding capacity and resistance to cipher-only attacks, with a maximum embedding rate ranging from 0.74 to 4.78 bpp.
IEEE TRANSACTIONS ON CIRCUITS AND SYSTEMS FOR VIDEO TECHNOLOGY
(2021)
Article
Engineering, Mechanical
Manu Shrivastava, Satyabrata Roy, Krishna Kumar, Chirag Vinodkumar Pandey, Jyoti Grover
Summary: This paper introduces a color image cipher based on cellular automaton for IoT applications, achieving faster execution speeds, lower energy consumption, and a bigger key space. The cipher scheme has been tested and shown to perform well against cyberattacks.
NONLINEAR DYNAMICS
(2021)
Article
Chemistry, Multidisciplinary
Quan Feng, Lu Leng, Chin-Chen Chang, Ji-Hwei Horng, Meihong Wu
Summary: Images uploaded to the cloud need to be encrypted for confidentiality and privacy. Recent RDHEI schemes utilize spatial correlation to improve data hiding, but there is still room for improvement. This paper proposes a RDHEI scheme based on extended parametric binary tree labeling, which effectively saves space and improves data payload. Experimental results show that the proposed scheme outperforms state-of-the-art schemes.
APPLIED SCIENCES-BASEL
(2023)
Article
Materials Science, Multidisciplinary
Pengcheng Liu
Summary: This article proposes a reversible information hiding algorithm based on chaos and histogram translation in ciphertext images. It addresses the limitations of traditional algorithms and improves the capacity of information embedding. The algorithm is easy to implement.
RESULTS IN PHYSICS
(2023)
Article
Optics
Zhi-Huan Pang, Meng Liu, Ai-Ping Luo, Yi Xu, Wen-Cheng Xu, Songnian Fu, Zhi-Chao Luo
Summary: We propose a novel mode-dependent gain equalizer using a few-mode chirped fiber Bragg grating (FM-CFBG) to effectively mitigate the mode-dependent gain in an all-fiber 2-mode EDFA. The equalizer based on FM-CFBG offers compact size, low insertion loss, and wavelength scalability, making it meaningful for long-haul MDM transmission.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Yiwei Qiu, Chenliang Ding, Gangyao Zhan, Mengdi Luo, Jisen Wen, Mengbo Tang, Chun Cao, Wenjie Liu, Liang Xu, Bihu Lv, Dazhao Zhu, Cuifang Kuang, Xu Liu
Summary: This article proposes a novel method to simultaneously reduce the axial and lateral feature sizes of PPI-DLW. By employing a pseudo 3D hollow focus, a suspended nanowire with an isotropic 30-nm feature size was realized, thereby improving the capabilities of PPI-DLW for fabricating arbitrary 3D structures.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Manzhuo Wang, Jianbo Yue, Zhentao Yao, Tingyu Liu, Xiaoqiang Sun, Yuanda Wu, Daming Zhang
Summary: A silica waveguide 1×8 thermo-optic switch consisting of cascaded three-stage Mach-Zehnder interferometers (MZIs) is successfully demonstrated. The switch utilizes a multimode interference (MMI) coupler in the MMI-MZI 1×2 switch unit for its wavelength insensitivity and favorable fabrication tolerance. The switch design and optimization is based on the beam propagation method (BPM) and implemented using standard CMOS technologies. Experimental results show that the switch meets the requirements for insertion loss and crosstalk at 1550 nm wavelength, and also performs well in a wide wavelength range.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
H. M. de la Cruz, E. D. Hernandez-Campos, E. Ortiz-Ricardo, A. Martinez-Borquez, I. Rosas-Roman, V. Contreras, G. Ramos-Ortiz, B. Mendoza-Santoyo, Cecilia I. Zurita-Lopez, R. Castro-Beltran
Summary: Acoustic levitation is an important contactless manipulation technique in various fields. This study presents an affordable phased-array levitator that can stably trap micrometer dye-doped droplets in the air, enabling the creation of microlasers. The levitated microlasers exhibit comparable optical lasing features to On-a-Chip devices, with a maximum Q-factor of approximately 105 and a minimum lasing threshold of approximately 150 nJ cm-2.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Yuqi Wang, Zilong Zhang, Suyi Zhao, Wei He, Xiaotian Li, Xin Wang, Yuchen Jie, Changming Zhao
Summary: This paper investigates the impact of localized defects in SLM devices on structured light generation and demonstrates the reconstructed light field results under different defect states using CGH loaded onto the DMD. The results show that central defects have minimal influence on the reconstructed light field, while edge defects have a significant impact. This study expands the application scenarios for the generation of structured light beams with SLM.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Ashraf A. A. Beshr, Hossam El-Din Fawzy, Ehab A. A. Eldin, Jong Wan Hu, Fathi A. Abdelmgeed
Summary: This paper introduces the application of digital measuring techniques, specifically Digital Close Range Photogrammetry (DCRP), in the detection of deformation in post-tensioned structural elements (PTSEs). The use of digital equipment and a terrestrial laser scanner (TLS) allows for highly accurate monitoring of PTSE camber, with deviations not exceeding 0.01 mm.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Shihao Gou, Danping Huang, Shipeng Liao, Fan Luo, Yang Yuan, Liang Liu, Xiaomei Wen
Summary: This paper proposes an online intelligent detection method for cable pitch defects in the field of optical cable manufacturing. The method utilizes a multi-sensor fusion image acquisition platform and deep learning technology to achieve accurate detection of pitch defects in optical cables.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Tun-Yao Hung, David W. U. Chan, Ching-Wei Peng, Chi-Wai Chow, Hon Ki Tsang
Summary: We present the first experimental demonstration of a high-capacity short-reach optical communication link which utilizes LSTM and DNN to achieve 300 Gbit/s 8-level pulse amplitude modulation (PAM8) generated by a single microring modulator. The experimental results show that 300 Gbit/s and 270 Gbit/s PAM8 modulation can be achieved at back-to-back and after 1 km transmission respectively.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Long Zhang, Li Pei, Jianshuai Wang, Jingjing Zheng, Kaihua Hu, Zhiqi Li, Tigang Ning, Jing Li, Li Zhong, Ruisi He
Summary: The amplification of long-haul mode division multiplexing (MDM) transmission systems is currently achieved through three steps, which can result in complexity and degraded transmission performance. To address this issue, this paper proposes an in-line few-mode erbium-doped fiber amplifier (FM-EDFA) based on cladding pumping, which enables simultaneous amplification and transmission in MDM systems. Experimental results demonstrate that the in-line FM-EDFA has excellent performance and shows great potential for practical long-haul transmission systems.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Chong Wang, Miaomiao Li, Jiahao Yang, Bingli Zhu, Jianghao Han, Wenbin Dang
Summary: This paper introduces the design of drive circuits using step recovery diodes and RF bipolar transistors to produce narrow pulse lasers, achieving the reduction of system size, power consumption and cost.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Ziqian Zhang, Liangyu Zhao, Chaorun Si, Yang Tian, Shilin Xu
Summary: A Hastelloy C276 coating was prepared on a martensitic stainless-steel substrate using laser melting deposition, resulting in a coating with high resistance to cavitation erosion. The coating exhibited a thick, progressively changing grain morphology from bottom to top, and the grains grew in a specific angle to the substrate plane. A compositional mixing zone was formed at the interface, forming a stable metallurgical bond. The coating showed a significantly improved hardness and enhanced resistance to cavitation erosion compared to the substrate.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Cui-Hong Li, Chao-Xiong He, Yuan-Yuan Ma, Jin-Chuan Wang, Ying Dong, Shao-Chong Zhu, Xiao-Wen Gao, Hui-Zhu Hu
Summary: In this paper, a non-contact optical measuring method for characterizing nanoparticles using optical tweezers is presented. The method relies on the optical polarization and scattering of nanoparticles, providing insights into both shape and size parameters. Experimental results show that the method can accurately measure the shape and size of nanoparticles, making it an effective tool for identifying and studying individual nanoparticles.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Magdalena Zieba, Cuma Tyszkiewicz, Katarzyna Wojtasik, Krystian Pavlov, Pawel Chaber, Ewa Gondek, Jacek Niziol, Roman Rogozinski, Pawel Kielan, Pawel Karasinski
Summary: This work presents a study on low-loss waveguide layers for planar evanescent wave sensor applications. Crack-free SiOx:TiOy composite layers with refractive indices of approximately 1.65 were fabricated using a sol-gel method and dip-coating technique. The fabricated layers exhibited good waveguide properties and optical homogeneity.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Yali He, Jiao Tang, Zhongyang Li, Yaowu Hu
Summary: In this paper, a lithography-free broadband absorbing metasurface consisting of Ag nanoparticles with ultrafine nanogaps is demonstrated. The experimental results and numerical simulations show that the horizontally compressed Ag nanoparticles possess smaller nanogaps for high sensitivity, uniformity, and stability. The novel substrate also exhibits insensitivity to the incident or observation angle in an ambient environment and has promising practical applications.
OPTICS AND LASER TECHNOLOGY
(2024)
Article
Optics
Linqing Li, Chengwei Yang, Zhuo Wang, Kun Xiao, Rui Min
Summary: In this study, a stretchable polymer optical fiber with a sandwich structure was proposed for sleep monitoring. The fiber improved the pressure sensitivity of the mattress and enabled the measurement of respiratory rate, heart rate, and body motion information.
OPTICS AND LASER TECHNOLOGY
(2024)