Title :
A selective image encryption algorithm based on hyper-chaos
Author :
Xu, Ping ; Zhao, Jianjun ; Wang, Dihua
Author_Institution :
Zhengzhou Inf. Sci. & Technol. Inst., Zhengzhou, China
Abstract :
A selective image encryption algorithm is proposed based on hyper-chaos. In the algorithm, the plain image is first divided into blocks, and the coefficient blocks are obtained by performing DCT transformation and quantization on the blocks. Then part coefficients are selected from every coefficient block and encrypted by 4D Chen´s system. Analysis and experimental results show that the encryption algorithm is secure.
Keywords :
cryptography; discrete cosine transforms; image coding; 4D Chen system; DCT quantization; DCT transformation; hyper-chaos algorithm; selective image encryption algorithm; Algorithm design and analysis; Chaotic communication; Correlation; Encryption; Histograms; Chaos; Chen´s system; DCT transformation; selective encryption;
Conference_Titel :
Communication Software and Networks (ICCSN), 2011 IEEE 3rd International Conference on
Conference_Location :
Xi´an
Print_ISBN :
978-1-61284-485-5
DOI :
10.1109/ICCSN.2011.6013737
