Applying Triple Data Encryption Algorithm to a Chaotic Systems: T-S Fuzzy Model-Based Approach

2018 ◽  
pp. 53-66
Author(s):  
Feng-Hsiag Hsiao ◽  
Po-Han Lin
Keyword(s):  
Chaotic Systems ◽  
Fuzzy Model ◽  
Data Encryption ◽  
Encryption Algorithm ◽  
Model Based

SYNCHRONIZATION OF UNCERTAIN CHAOTIC SYSTEMS BASED ON THE FUZZY-MODEL-BASED APPROACH

2006 ◽  
Vol 16 (05) ◽  
pp. 1435-1444 ◽  
Author(s):  
H. K. LAM ◽  
F. H. F. LEUNG
Keyword(s):  
Chaotic Systems ◽  
Fuzzy Model ◽  
Parameter Design ◽  
Parameter Uncertainties ◽  
Model Based ◽  
Synchronization Problem ◽  
Programming Techniques ◽  
Uncertain Chaotic Systems ◽  
Switching Controller ◽  
The Stability

This paper investigates the synchronization of chaotic systems subject to parameter uncertainties. Based on the fuzzy-model-based approach, a switching controller will be proposed to deal with the synchronization problem. The stability conditions will be derived based on the Lyapunov approach. The tracking performance and parameter design of the proposed switching controller will be formulated as a generalized eigenvalue minimization problem which can be solved numerically using some convex programming techniques. Simulation examples will be given to show the effectiveness of the proposed approach.

scholarly journals Entropy-Based Block Scrambling Image Encryption Using DES Structure and Chaotic Systems

2019 ◽  
Vol 2019 ◽  
pp. 1-13 ◽  
Author(s):  
Xuncai Zhang ◽  
Lingfei Wang ◽  
Guangzhao Cui ◽  
Ying Niu
Keyword(s):  
Image Encryption ◽  
Key Management ◽  
Chaotic Systems ◽  
Image Data ◽  
Large Data ◽  
Data Encryption ◽  
Image Correlation ◽  
Encryption Algorithm ◽  
Strong Correlations ◽  
Cipher Text

Traditional encryption algorithms are inefficient when applied to image encryption because image data have the characteristics of large data sizes and strong correlations between adjacent pixels. The shortcomings of the traditional Data encryption standard (DES) encryption algorithm when applied to image encryption are analyzed, and a new image encryption algorithm based on the traditional DES encryption algorithm model, chaotic systems, DNA computing, and select cipher-text output is proposed. Select cipher-text output selects cipher image with the biggest entropy, and it can increase the randomness of cipher image and reduce the risk of encryption system being broken down. This algorithm overcomes the shortcomings of high computational complexity and inconvenient key management that the traditional text encryption algorithm has when applied to image encryption. The experimental results show that the security of this algorithm is verified by analyzing the information entropy, image correlation of adjacent pixels and other indexes. At the same time, this algorithm passes the noise attack test and the occlusion attack test, so it can resist common attacks.

Security Research of Messaging Middleware JMS-Based

2012 ◽  
Vol 482-484 ◽  
pp. 39-42
Author(s):  
Ying Li Wei ◽  
Tian Huang Chen
Keyword(s):  
Digital Signature ◽  
Data Encryption ◽  
Encryption Algorithm ◽  
Communication Model ◽  
Security Model ◽  
Message Transmission ◽  
Model Based ◽  
Security Research ◽  
Asymmetric Encryption

Security of messaging middleware is the key issue to ensure the integrity of news transmission. By analyzing the defects on safety of current JMS-based messaging middleware communication model, elaborating several safety problems of messaging middleware from authentication, authorization, encapsulation and audit, this paper proposes a messaging middleware security model based on data encryption and digital signature technology, it encrypt messages with symmetric and asymmetric encryption algorithm and audit some safety-related events, then the security of message transmission has improved.

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