A New Encryption Algorithm based on Chaotic Map for Wireless Sensor Network

2014 ◽  
pp. 103-123
Author(s):  
Ghada Zaibi ◽  
Fabrice Peyrard ◽  
Abdennaceur Kachouri ◽  
Danièle Fournier-Prunaret ◽  
Mounir Samet
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Chaotic Map ◽  
Security Analysis ◽  
Correlation Coefficients ◽  
Wireless Sensor ◽  
Differential Analysis ◽  
Key Space ◽  
Brute Force Attack ◽  
Differential Attacks

A new and secure chaos-based block cipher for image encryption in wireless sensor networks is proposed. The security analysis and the performances of the proposed algorithm have been investigated. The statistical analysis includes the histograms and correlation coefficients of adjacent pixels. In the differential analysis, the authors use the Number of Pixels Change Rate (NPCR) and the Unified Changing Average (UACI) measures to demonstrate the security against differential attacks. Key sensitivity analysis and key space analysis show that the proposed cipher is secure and resistant to brute force attack. The authors demonstrate that the performance of the cipher exceeds the studied encryption algorithms as well as AES (Advanced Encryption Standard). An implementation on a real wireless sensor network testbed is realized, and the energy consumption is investigated.

Secured and flexible user authentication protocol for wireless sensor network

2020 ◽  
Vol 8 (4) ◽  
pp. 253-265
Author(s):  
Prabu P ◽  
Senthilnathan T
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
User Authentication ◽  
Authentication Protocol ◽  
Vital Role ◽  
Wireless Sensor ◽  
Content Type ◽  
Effective Manner ◽  
Sensor Devices ◽  
Brute Force Attack

PurposeIn wireless sensor network (WSN), user authentication plays as a vital role in which data sensing, as well as sharing, will be spoiled by hackers. To enhance user security, user authentication must be focused.Design/methodology/approachIn previous works, for secured authentication, Enhanced User Authentication Protocol (EUAP) is presented. On the other hand, the user free password generation is permitted in the previous technique.FindingsHere, password leakage may cause a malevolent user's contribution to the WSN environment. By presenting the Flexible and Secured User Authentication Protocol (FSUAP), this is solved in the presented technique in which secured as well as reliable sharing of data contents via unsecured wireless sensor devices was accomplished.Originality/valueThe foremost objective of the present technique is to device the protocol that would verify the users beforehand letting them access the sensor devices situated in various sites. The use of a sensor device could be reduced in a significant way. Three-factor authentication protocols are presented in place of two-factor authentication protocol in the presented technique that could deal with and safeguard the environment from a brute force attack in an effective manner.

scholarly journals Security of Intelligent Building Network Based on Wireless Sensor Network

2018 ◽  
Vol 14 (06) ◽  
pp. 151
Author(s):  
Shuang Xu ◽  
Tong Zhou
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Low Cost ◽  
Security Analysis ◽  
Working Environment ◽  
Wireless Sensor ◽  
Localization Algorithm ◽  
Intelligent Building ◽  
Intelligent Buildings ◽  
Secure Localization

<p class="0abstract"><span lang="EN-US">In order to study the intelligent buildings, the intelligent building network security of wireless sensor was explored. Because of its advantages of low cost, easy installation, low maintenance and update cost, wireless sensor network system was applied to intelligent building. In view of the characteristics of various influencing factors on the wireless sensor network working environment, node hardware cost and location accuracy, a secure localization algorithm based on DV-Hop was put forward. The security analysis results showed that the algorithm resisted external attacks and guaranteed the accuracy of location results. Based on the above findings, it is concluded that the algorithm can be used to protect the safety of wireless sensor network in building. </span></p>

scholarly journals 3D Localization Algorithm Based on Voronoi Diagram and Rank Sequence in Wireless Sensor Network

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Xi Yang ◽  
Fang Yan ◽  
Jun Liu
Keyword(s):  
Wireless Sensor Network ◽  
Sensor Network ◽  
Voronoi Diagram ◽  
Optimal Parameter ◽  
Rank Correlation ◽  
Correlation Coefficients ◽  
Wireless Sensor ◽  
Localization Algorithm ◽  
Localization Accuracy ◽  
3D Space

Accurate nodes’ localization is a key problem in wireless sensor network (WSN for short). This paper discusses and analyzes the effects of Voronoi diagram in 3D location space. Then it proposes Sequence Localization Correction algorithm based on 3D Voronoi diagram (SLC3V), which introduces 3D Voronoi diagram to divide the 3D location space and constructs the rank sequence tables of virtual beacon nodes. SLC3V uses RSSI method between beacon nodes as a reference to correct the measured distance and fixes the location sequence of unknown nodes. Next, it selects optimal parameterNand realizes the weighted location estimate withNvalid virtual beacon nodes by normalization process of rank correlation coefficients. Compared with other sequence location algorithms, simulation experiments show that it can improve the localization accuracy for nodes in complex 3D space with less measurements and computational costs.

A New Algorithm Based on Magic Square and a Novel Chaotic System for Image Encryption

2019 ◽  
Vol 29 (1) ◽  
pp. 1202-1215 ◽  
Author(s):  
Rageed Hussein AL-Hashemy ◽  
Sadiq A. Mehdi
Keyword(s):  
Image Encryption ◽  
Chaotic System ◽  
Color Image ◽  
Security Analysis ◽  
Correlation Coefficients ◽  
Magic Squares ◽  
Magic Square ◽  
Key Space ◽  
Encryption Method ◽  
Differential Attacks

Abstract This article introduces a simple and effective new algorithm for image encryption using a chaotic system which is based on the magic squares. This novel 3D chaotic system is invoked to generate a random key to encrypt any color image. A number of chaotic keys equal to the size of the image are generated by this chaotic system and arranged into a matrix then divided into non-overlapped submatrices. The image to be encrypted is also divided into sub-images, and each sub-image is multiplied by a magic matrix to produce another set of matrices. The XOR operation is then used on the resultant two sets of matrices to produce the encrypted image. The strength of the encryption method is tested in two folds. The first fold is the security analysis which includes key space analysis and sensitivity analysis. In the second fold, statistical analysis was performed, which includes the correlation coefficients, information entropy, the histogram, and analysis of differential attacks. Finally, the time of encryption and decryption was computed and show very good results.

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