A chaotic block cipher algorithm for image cryptosystems

Recently, many scholars have proposed chaotic cryptosystems in order to promote communication security. However, there are a number of major problems detected in some of those schemes such as weakness against differential attack, slow performance speed, and unacceptable data expansion. In this paper, we introduce a new chaotic block cipher scheme for image cryptosystems that encrypts block of bits rather than block of pixels. It encrypts 256-bits of plainimage to 256-bits of cipherimage within eight 32-bit registers. The scheme employs the cryptographic primitive operations and a non-linear transformation function within encryption operation, and adopts round keys for encryption using a chaotic system. The new scheme is able to encrypt large size of images with superior performance speed than other schemes. The security analysis of the new scheme confirms a high security level and fairly uniform distribution.

[1]  Rhouma Rhouma,et al.  Cryptanalysis of a new image encryption algorithm based on hyper-chaos , 2008 .

[2]  C. Chui,et al.  A symmetric image encryption scheme based on 3D chaotic cat maps , 2004 .

[3]  Zhang Xin,et al.  Image encryption algorithm based on Henon chaotic system , 2009, 2009 International Conference on Image Analysis and Signal Processing.

[4]  Gonzalo Alvarez,et al.  On the security of an image encryption scheme , 2007, IACR Cryptol. ePrint Arch..

[5]  Zengqiang Chen,et al.  Image encryption based on a new total shuffling algorithm , 2008 .

[6]  Guanrong Chen,et al.  On the security of a class of image encryption schemes , 2008, 2008 IEEE International Symposium on Circuits and Systems.

[7]  Kai Wang,et al.  On the security of 3D Cat map based symmetric image encryption scheme , 2005 .

[8]  Xin Zhang,et al.  A new chaotic algorithm for image encryption , 2006 .

[9]  Amir Akhavan,et al.  Applications of tripled chaotic maps in cryptography , 2007, 0705.2633.

[10]  Guanrong Chen,et al.  A Novel Fast Image Encryption Scheme Based on 3D Chaotic Baker Maps , 2004, Int. J. Bifurc. Chaos.

[11]  Osama S. Faragallah,et al.  Encryption Efficiency Analysis and Security Evaluation of RC6 Block Cipher for Digital Images , 2007, 2007 International Conference on Electrical Engineering.

[12]  Osama S. Faragallah,et al.  An Efficient Chaos-Based Feedback Stream Cipher (ECBFSC) for Image Encryption and Decryption , 2007, Informatica.

[13]  Zhiliang Zhu,et al.  Cryptanalysis and Improvement on a Block Encryption Algorithm Based on Dynamic Sequences of Multiple Chaotic Systems , 2009, 2010 International Workshop on Chaos-Fractal Theories and Applications.

[14]  A. Akhavan,et al.  A fast chaotic encryption scheme based on piecewise nonlinear chaotic maps , 2007 .

[15]  A. Akhavan,et al.  A novel algorithm for image encryption based on mixture of chaotic maps , 2008 .

[16]  S. Lian,et al.  Efficient image or video encryption based on spatiotemporal chaos system , 2009 .

[17]  Rhouma Rhouma,et al.  Cryptanalysis of a spatiotemporal chaotic image/video cryptosystem , 2008 .

[18]  W. Tang,et al.  A fast image encryption system based on chaotic maps with finite precision representation , 2007 .

[19]  Fuyan Sun,et al.  A novel image encryption scheme based on spatial chaos map , 2008 .

[20]  Zengqiang Chen,et al.  A new image encryption algorithm based on hyper-chaos , 2008 .

[21]  S. El-Rabaie,et al.  Homomorphic image encryption , 2009, J. Electronic Imaging.

[22]  Vinod Patidar,et al.  Image encryption using chaotic logistic map , 2006, Image Vis. Comput..

[23]  Bruce Schneier,et al.  Applied cryptography : protocols, algorithms, and source codein C , 1996 .

[24]  Xiaofeng Liao,et al.  An Image Encryption Scheme Based on Chaotic Map , 2008, 2008 Fourth International Conference on Natural Computation.

[25]  Claude E. Shannon,et al.  Communication theory of secrecy systems , 1949, Bell Syst. Tech. J..

[26]  Ahmed A. Abd El-Latif,et al.  Chaos-based hash function (CBHF) for cryptographic applications , 2009 .

[27]  Osama S. Farag Allah,et al.  Encryption Efficiency Analysis and Security Evaluation of RC6 Block Cipher for Digital Images , 2007 .

[28]  S. Mazloom,et al.  Color image encryption based on Coupled Nonlinear Chaotic Map , 2009 .

[29]  S. Li,et al.  Cryptanalyzing a nonlinear chaotic algorithm (NCA) for image encryption , 2009 .