中国物理B ›› 2016, Vol. 25 ›› Issue (5): 54201-054201.doi: 10.1088/1674-1056/25/5/054201

• ELECTROMAGNETISM, OPTICS, ACOUSTICS, HEAT TRANSFER, CLASSICAL MECHANICS, AND FLUID DYNAMICS • 上一篇    下一篇

Image encryption using random sequence generated from generalized information domain

Xia-Yan Zhang(张夏衍), Guo-Ji Zhang(张国基), Xuan Li(李璇), Ya-Zhou Ren(任亚洲), Jie-Hua Wu(伍杰华)   

  1. 1. School of Computer Science and Engineering, South China University of Technology, Higher Education Mega Centre, Guangzhou 510006, China;
    2. School of Mathematics, South China University of Technology, Guangzhou 510641, China;
    3. School of Software, Fujian Normal University, Fuzhou 350007, China;
    4. School of Computer Science and Engineering, Big Data Research Center, University of Electronic Science and Technology of China, Chengdu 611731, China
  • 收稿日期:2015-09-12 修回日期:2015-12-18 出版日期:2016-05-05 发布日期:2016-05-05
  • 通讯作者: Guo-Ji Zhang E-mail:magjzh@scut.edu.cn

Image encryption using random sequence generated from generalized information domain

Xia-Yan Zhang(张夏衍)1, Guo-Ji Zhang(张国基)2, Xuan Li(李璇)3, Ya-Zhou Ren(任亚洲)4, Jie-Hua Wu(伍杰华)1   

  1. 1. School of Computer Science and Engineering, South China University of Technology, Higher Education Mega Centre, Guangzhou 510006, China;
    2. School of Mathematics, South China University of Technology, Guangzhou 510641, China;
    3. School of Software, Fujian Normal University, Fuzhou 350007, China;
    4. School of Computer Science and Engineering, Big Data Research Center, University of Electronic Science and Technology of China, Chengdu 611731, China
  • Received:2015-09-12 Revised:2015-12-18 Online:2016-05-05 Published:2016-05-05
  • Contact: Guo-Ji Zhang E-mail:magjzh@scut.edu.cn

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摘要： A novel image encryption method based on the random sequence generated from the generalized information domain and permutation-diffusion architecture is proposed. The random sequence is generated by reconstruction from the generalized information file and discrete trajectory extraction from the data stream. The trajectory address sequence is used to generate a P-box to shuffle the plain image while random sequences are treated as keystreams. A new factor called drift factor is employed to accelerate and enhance the performance of the random sequence generator. An initial value is introduced to make the encryption method an approximately one-time pad. Experimental results show that the random sequences pass the NIST statistical test with a high ratio and extensive analysis demonstrates that the new encryption scheme has superior security.

关键词: image encryption, random number generator, cryptography

Abstract: A novel image encryption method based on the random sequence generated from the generalized information domain and permutation-diffusion architecture is proposed. The random sequence is generated by reconstruction from the generalized information file and discrete trajectory extraction from the data stream. The trajectory address sequence is used to generate a P-box to shuffle the plain image while random sequences are treated as keystreams. A new factor called drift factor is employed to accelerate and enhance the performance of the random sequence generator. An initial value is introduced to make the encryption method an approximately one-time pad. Experimental results show that the random sequences pass the NIST statistical test with a high ratio and extensive analysis demonstrates that the new encryption scheme has superior security.

Key words: image encryption, random number generator, cryptography

中图分类号:  (Image forming and processing)

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