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Chaotic synchronization performs poorly in noisy environments, with the main drawback being that the coherent receiver cannot be implemented in realistic communication channels. In this paper, we focus our study on a promising communication…

信息论 · 计算机科学 2013-02-18 Georges Kaddoum , Francois Gagnon , Denis Couillard

An analysis of a recently proposed cryptosystem based on chaotic oscillators and feedback inversion is presented. It is shown how the cryptosystem can be broken when Duffing's oscillator is considered. Some implementation problems of the…

混沌动力学 · 物理学 2007-05-23 G. Alvarez , L. Hernandez , F. Montoya , J. Munoz

An innovative strategy to enhance the security of symmetric substitution ciphers is presented, through the implementation of a randomized key matrix suitable for various file formats, including but not limited to binary and text files.…

密码学与安全 · 计算机科学 2023-12-01 Shubham Gandhi , Om Khare , Mihika Dravid , Mihika Sanghvi , Sunil Mane , Aadesh Gajaralwar , Saloni Gandhi

In recent years, a lot of research has gone into creating multi-layer chaotic mapping-based cryptosystems. Random-like behavior, a continuous broadband power spectrum, and a weak baseline condition dependency are all characteristics of…

密码学与安全 · 计算机科学 2022-08-15 Awnon Bhowmik , Emon Hossain , Mahmudul Hasan

The real time analysis and secure transmission of electrocardiogram (ECG) signals are critical for ensuring both effective medical diagnosis and patient data privacy. In this study, we developed a real time ECG monitoring system that…

密码学与安全 · 计算机科学 2024-11-08 Beyazit Bestami Yuksel , Ayse Yilmazer Metin

Integral imaging-based cryptographic algorithms provides a new way to design secure and robust image encryption schemes. In this paper, we introduce a performance-enhanced image encryption schemes based on depth-conversion integral imaging…

密码学与安全 · 计算机科学 2015-01-20 Xiaowei Li , Chengqing Li , Seok-Tae Kim , In-Kwon Lee

In this paper, a high dimensional chaotic systems based mixed keystream generator is proposed to secure the voice data. As the voice-based communication becomes extensively vital in the application areas of military, voice over IP,…

密码学与安全 · 计算机科学 2014-03-20 Musheer Ahmad , Bashir Alam , Omar Farooq

The paper deals with time-scaling transformations of dynamical systems. Such scaling functions operate a change of coordinates on the time axis of the system trajectories preserving its phase portrait. Exploiting this property, a chaos…

混沌动力学 · 物理学 2015-05-13 Donatello Materassi , Michele Basso

In this paper, we propose a known-plaintext attack (KPA) method based on deep learning for traditional chaotic encryption scheme. We employ the convolutional neural network to learn the operation mechanism of chaotic cryptosystem, and…

密码学与安全 · 计算机科学 2021-03-10 Fusen Wang , Jun Sang , Qi Liu , Chunlin Huang , Jinghan Tan

Chaotic maps are very important for establishing chaos-based image encryption systems. This paper introduces a coupling chaotic system based on a certain unit transform, which can combine any two 1D chaotic maps to generate a new one with…

密码学与安全 · 计算机科学 2019-09-19 Guozhen Hu , Baobin Li

This paper constructs two encryption methods using 2-D chaotic maps, Duffings and Arnold's cat maps respectively. Both of the methods are designed using message embedded scheme and are analyzed for their validity, for plaintext sensitivity,…

密码学与安全 · 计算机科学 2012-08-10 Mina Mishra , V. H. Mankar

Recently, a novel public key edcryption technique based on multiple chaotic systems has been proposed. The scheme employs m-chaotic systmes and a set of linear functions for key exchange over an insecure channel. The security of the…

混沌动力学 · 物理学 2009-11-11 K. wang , W. J. Pei , Z. L. Hua , Z. Y. He

We show that the Modified Matrix Modular Cryptosystem proposed by S.K. Rososhek is not secure against the attack based on the linear decomposition method. The security of the encryption scheme in the Rososhek's system is based on the mix of…

密码学与安全 · 计算机科学 2018-11-27 Vitaliĭ Roman'kov

This paper proposes three different chaotic encryption methods using 1-D chaotic map known as Logistic map named as Logistic, NLFSR and Modified NLFSR according to the name of chaotic map and non-linear function involved in the scheme. The…

密码学与安全 · 计算机科学 2013-12-17 Mina Mishra , Vijay H. Mankar

In recent years, a variety of effective chaos-based image encryption schemes have been proposed. The typical structure of these schemes has the permutation and the diffusion stages performed alternatively. The confusion and diffusion effect…

密码学与安全 · 计算机科学 2007-05-23 Kwok-Wo Wong , Bernie Sin-Hung Kwok , Wing-Shing Law

This paper considers a method of coding the sensor outputs in order to detect stealthy false data injection attacks. An intelligent attacker can design a sequence of data injection to sensors and actuators that pass the state estimator and…

密码学与安全 · 计算机科学 2016-11-17 Fei Miao , Quanyan Zhu , Miroslav Pajic , George J. Pappas

Advanced Encryption Standard (AES) algorithm is considered as a secured algorithm. Still, some security issues lie in the S-Box and the key used. In this paper, we have tried to give focus on the security of the key used. Here, the proposed…

密码学与安全 · 计算机科学 2013-07-12 Chittaranjan Pradhan , Ajay Kumar Bisoi

Recently, a chaos-based image encryption algorithm using alternate structure (IEAS) was proposed. This paper focuses on differential cryptanalysis of the algorithm and finds that some properties of IEAS can support a differential attack to…

密码学与安全 · 计算机科学 2011-12-22 Yu Zhang , Chengqing Li , Kwok-Wo Wong , Shi Shu , Guanrong Chen

We propose a new audio signal encryption scheme based on the chaotic H\'enon map. The scheme mainly comprises two phases: one is the preprocessing stage where the audio signal is transformed into a data by the lifting wavelet scheme and the…

密码学与安全 · 计算机科学 2017-12-19 Animesh Roy , A. P. Misra

This paper proposes a generic approach for providing enhanced security to communication systems which encode their data for reliability before encrypting it through a stream cipher for security. We call this counter-intuitive technique the…

密码学与安全 · 计算机科学 2010-08-06 Frederique Oggier , Miodrag J. Mihaljevic