Design and Implementation of Color Image Encryption Based on Qubit Rotation About Axis

作     者：LIU Xiande XIAO Hong LI Panchi ZHAO Ya 

作者机构：School of Computer and Information Technology Northeast Petroleum University 

出 版 物：《Chinese Journal of Electronics》 (电子学报(英文))

年 卷 期：2018年第27卷第4期

页      面：799-807页

核心收录：

学科分类：0839[工学-网络空间安全] 08[工学] 080203[工学-机械设计及理论] 0802[工学-机械工程] 081201[工学-计算机系统结构] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：supported by the National Nature Science Foundation of China(No.61170132) the PetroChina Innovation Foundation(No.2016D-5007-0302) the Natural Science Foundation of Heilongjiang Province,China(No.F2015021) 

主　　题：Color image representing Color image encrypting Qubit rotating Quantum Fourier transform Quantum image processing 

摘      要：Currently, almost all color image encryption/decryption algorithms are designed based on a classical computer, in which the key space is relatively small,and the huge gains from quantum parallelism are not obtained. To address this problem, we propose a novel color image encryption/decryption method based on random rotation of qubit and Quantum Fourier transform(QFT).First, the color image is represented in a quantum superposition state |Image, in which the color information of each pixel is described by only one qubit |c. Then, the |c are randomly rotated on the Bloch sphere about three coordinate axis, and the QFT is performed on the |Image.Once again, the |c is randomly rotated on the Bloch sphere and then the inverse QFT is performed on the |Image,which the encryption process is implemented. The keys are the rotation angles of two above-mentioned *** decryption is the inverse process of the *** method may run on a quantum computer in the future. The simulation results on the classic computer show that our approaches have better security.