期刊
INFORMATION SCIENCES
卷 277, 期 -, 页码 445-457出版社
ELSEVIER SCIENCE INC
DOI: 10.1016/j.ins.2014.02.124
关键词
Image processing; Double random-phase encoding; Encryption; Decryption; Quantum Fourier transform
资金
- National Natural Science Foundation of China [61003290]
- Beijing Natural Science Foundation [4122008]
- Funding Project for Academic Human Resources Development in Institutions of Higher Learning Under the Jurisdiction of Beijing Municipality [CITTCD201304039]
A novel encryption/decryption method for color images is proposed, in which quantum Fourier transform (QFT) and double random-phase encoding (DRPE) techniques have been used. The encryption process can be realized by performing two secret random-phase encoding operations respectively in the input and the QFT planes. Because all quantum operations are invertible, the decryption process is the inverse of the encryption process. Supported by detailed numerical simulation and theoretical analysis, the method has clarified its robustness, security and computational complexity over its classical counterpart. And it opens the door for introducing color image encryption into quantum scenarios. (C) 2014 Elsevier Inc. All rights reserved.
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