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Open AccessArticle

Secure Chaotic Map Based Block Cryptosystem with Application to Camera Sensor Networks

Key Laboratory of Signal and Information Processing of Sichuan Province, School of Information Science & Technology, Southwest Jiaotong University, Chengdu, China
College of Computer Science and Technology, Southwest University for Nationalities, Chengdu, China
Center of Excellence in Information Assurance, King Saud University, Riyadh, Saudi Arabia
Information Systems Department, College of Computer and Information Sciences, King Saud University, Riyadh, Saudi Arabia
Author to whom correspondence should be addressed.
Sensors 2011, 11(2), 1607-1619;
Received: 10 December 2010 / Revised: 10 January 2011 / Accepted: 15 January 2011 / Published: 27 January 2011
Recently, Wang et al. presented an efficient logistic map based block encryption system. The encryption system employs feedback ciphertext to achieve plaintext dependence of sub-keys. Unfortunately, we discovered that their scheme is unable to withstand key stream attack. To improve its security, this paper proposes a novel chaotic map based block cryptosystem. At the same time, a secure architecture for camera sensor network is constructed. The network comprises a set of inexpensive camera sensors to capture the images, a sink node equipped with sufficient computation and storage capabilities and a data processing server. The transmission security between the sink node and the server is gained by utilizing the improved cipher. Both theoretical analysis and simulation results indicate that the improved algorithm can overcome the flaws and maintain all the merits of the original cryptosystem. In addition, computational costs and efficiency of the proposed scheme are encouraging for the practical implementation in the real environment as well as camera sensor network. View Full-Text
Keywords: cryptography; camera sensor network; chaotic; key stream attack cryptography; camera sensor network; chaotic; key stream attack
MDPI and ACS Style

Guo, X.; Zhang, J.; Khan, M.K.; Alghathbar, K. Secure Chaotic Map Based Block Cryptosystem with Application to Camera Sensor Networks. Sensors 2011, 11, 1607-1619.

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