Journal
OPTICS COMMUNICATIONS
Volume 283, Issue 15, Pages 3037-3042Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.optcom.2010.03.064
Keywords
Multiple-parameter; Discrete fractional random transform; Image encryption; Information security
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Funding
- National Natural Science Foundation of China [10647133]
- Key Programs for Science and Technology Development of Jiangxi Province [2009BGB02100]
- Natural Science Foundation of Jiangxi Province [2009GQS0080, 2007GQS1906]
- Talent of Nanchang University
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A new method of digital image encryption is presented by utilizing a new multiple-parameter discrete fractional random transform. Image encryption and decryption are performed based on the index additivity and multiple parameters of the multiple-parameter fractional random transform. The plaintext and ciphertext are respectively in the spatial domain and in the fractional domain determined by the encryption keys. The proposed algorithm can resist statistic analyses effectively. The computer simulation results show that the proposed encryption algorithm is sensitive to the multiple keys, and that it has considerable robustness, noise immunity and security. (C) 2010 Elsevier B.V. All rights reserved.
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