Image Encryption Using Block Based Transformation With Fractional Fourier Transform

被引：0
作者：
Cui, Delong [1 ,2 ]
Shu, Lei [2 ]
Chen, Yuanfang [3 ]
Wu, Xiaoling [4 ]
机构：
[1] Guangdong Univ Petrochem Technol, Coll Comp & Elect Informat, Guangzhou, Guangdong, Peoples R China
[2] Guangdong Univ Petrochem Technol, Guangdong Provincial Key Lab Fault Diagnosis Petr, Guangzhou, Guangdong, Peoples R China
[3] Univ Paris 06, Inst Mines Telecom, Paris, France
[4] Chinese Acad Sci, Guangzhou Inst Adv Technol, Guangzhou, Guangdong, Peoples R China
来源：
2013 8TH INTERNATIONAL ICST CONFERENCE ON COMMUNICATIONS AND NETWORKING IN CHINA (CHINACOM) | 2013年
关键词：
Image encryption; fractional Fourier transform(FRFT); block-based transform; entropy;
D O I：
暂无
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
In order to transmit image data in open network, a novel image encryption algorithm based on fractional Fourier transform and block-based transformation is proposed in this paper. The image encryption process includes two steps: the original image was divided into blocks, which were rearranged into a transformed image using a transformation algorithm, and then the transformed image was encrypted using the fractional Fourier transform (FRFT) algorithm. The security of the proposed algorithm depends on the transformation algorithm, sensitivity to the randomness of phase mask and the orders of FRFT. Theoretical analysis and experimental results demonstrate that the algorithm is favorable.
引用
收藏
页码：552 / 556
页数：5
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