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Recently, two certificateless three-party authenticated key agreement protocols were proposed, and both protocols were claimed they can meet the desirable security properties including forward security, key compromise impersonation…

密码学与安全 · 计算机科学 2013-01-23 Haiyan Sun , Qiaoyan Wen , Hua Zhang , Zhengping Jin , Wenmin Li

A revised self-synchronizing stream cipher based on chaotic coupled maps is proposed. This system adds input and output functions aim to strengthen its security. The system performs basic floating-point analytical computation on real…

混沌动力学 · 物理学 2008-06-20 Shihong Wang , Gang Hu

A novel explicit analytical solution is reported for the transmission and recovery of information signals using a simple communication scheme. Analytical solutions are obtained for the normalized state equations of coupled second-order…

信号处理 · 电气工程与系统科学 2019-10-08 G. Sivaganesh , A. Arulgnanam , A. N. Seethalakshmi

A new framework for information hiding security, called chaos-security, has been proposed in a previous study. It is based on the evaluation of unpredictability of the scheme, whereas existing notions of security, as stego-security, are…

密码学与安全 · 计算机科学 2015-03-17 Christophe Guyeux , Nicolas Friot , Jacques M. Bahi

The simplest case of a ring topology is numerically investigated using the Terahertz modeling. Numerical simulations demonstrate high level degree of complete synchronization. Some security implications for the Terahertz communication and…

混沌动力学 · 物理学 2025-07-01 Elman Shahverdiev

Catch 22 of cryptography - "Before two parties can communicate in secret, they must first communicate in secret". The weakness of classical cryptographic communication systems is that secret communication can only take place after a key is…

密码学与安全 · 计算机科学 2010-06-29 Catalin Anghel

Recently two encryption schemes were proposed by combining circular bit shift and XOR operations, under the control of a pseudorandom bit sequence (PRBS) generated from a chaotic system. This paper studies the security of these two…

混沌动力学 · 物理学 2010-06-23 Chengqing Li , Shujun Li , Gonzalo Álvarez , Guanrong Chen , Kwok-Tung Lo

This report aims to study adaptive synchronization between a general class of hyperchaotic complex-valued systems with unknown parameters, which is motivated by extensive application areas of this topic in nonlinear sciences (e.g., secure…

动力系统 · 数学 2021-10-27 A. A. -H. Shoreh , N. V. Kuznetsov , T. N. Mokaev

The problem of projective synchronization(ps) and control are studied in modified unified chaotic system which possess partially linearity property. The desired ratio factor of corresponding subsystem variable could be obtained by state…

混沌动力学 · 物理学 2007-05-23 Liang Feng , Xiang Jinglin , Chen Shaohua , Shi Jie

We introduce a novel approach for controlling fast chaos in time-delay dynamical systems and use it to control a chaotic photonic device with a characteristic time scale of ~12 ns. Our approach is a prescription for how to implement…

混沌动力学 · 物理学 2009-11-10 J. N. Blakely , L. Illing , D. J. Gauthier

Cryptography is always very important in data origin authentications, entity authentication, data integrity and confidentiality. In recent years, a variety of chaotic cryptographic schemes have been proposed. These schemes have typical…

密码学与安全 · 计算机科学 2012-02-08 Sodeif Ahadpour , Yaser Sadra , Zahra ArastehFard

Most traditional alarm systems cannot address security threats in a satisfactory manner. To alleviate this problem, we developed a high-confidence cyber-physical alarm system (CPAS), a new kind of alarm systems. This system establishes the…

分布式、并行与集群计算 · 计算机科学 2016-11-17 Longhua Ma , Tengkai Yuan , Feng Xia , Ming Xu , Jun Yao , Meng Shao

A During last two decades, there has been a prolific growth in the chaos based image encryption algorithms. Up to an extent these algorithms have been able to provide an alternative to exchange large media files (images and videos) over the…

密码学与安全 · 计算机科学 2020-03-18 Vinod Patidar , N. K. Pareek , G. Purohit

We study the mutual coupling of chaotic lasers and observe both experimentally and in numeric simulations, that there exists a regime of parameters for which two mutually coupled chaotic lasers establish isochronal synchronization, while a…

This paper proposes a chaos-based analog-to-information conversion system for the acquisition and reconstruction of sparse analog signals. The sparse signal acts as an excitation term of a continuous-time chaotic system and the compressive…

信息论 · 计算机科学 2015-06-12 Feng Xi , Sheng Yao Chen , Zhong Liu

With photons being the only available candidates for long-distance quantum communication, most quantum cryptographic devices are physically realized as optical systems that operate a security protocol based on the laws of quantum mechanics.…

量子物理 · 物理学 2012-07-02 Nitin Jain

Chaotic signals offer promising characteristics for wireless communications due to their wideband nature, low cross-correlation, and sensitivity to initial conditions. Although classical chaotic modulation schemes like Chaos Shift Keying…

信号处理 · 电气工程与系统科学 2024-09-11 Marc Martinez-Gost , Ana Pérez-Neira , Miguel Ángel Lagunas

This article provides a self-contained comprehensive review of the phenomenon of synchronization in dynamical systems, with a particular focus on chaotic systems in both continuous-time and discrete-time contexts. Synchronization, initially…

混沌动力学 · 物理学 2024-12-31 Rosario D. Laureano , Diana A. Mendes , Manuel Alberto M. Ferreira

Quantum secure direct communication provides a direct means of conveying secret information via quantum states among legitimate users. The past two decades have witnessed its great strides both theoretically and experimentally. However, the…

量子物理 · 物理学 2021-09-14 Zhangdong Ye , Dong Pan , Zhen Sun , Chunguang Du , Liuguo Yin , Guilu Long

A cryptographic algorithm is proposed based on fully quantum mechanical keys and ciphers. Encryption and decryption are carried out via an appropriate measurement process on entangled states as governed by a quantum mechanical, asymmetrical…

量子物理 · 物理学 2007-05-23 Guihua Zeng , Carlos Saavedra , Christoph H. Keitel