Quantum Image Encryption Scheme Based on Chaotic Sequence

doi:10.3969/j.issn.1006-2475.2020.03.017

Abstract

Abstract: Aiming at the problem of quantum image encryption, this paper designs an encryption scheme based on chaotic sequence. Firstly, the NEQR (Novel Enhanced Quantum Representation) model is used to represent quantum images. Then, three chaotic sequences and controlled rotation gates are used to make each color qubit rotate randomly by ±π/4 radians to complete the encryption process. When decrypting, the chaotic sequence is first generated according to the secret key, and then each color qubit is rotated randomly by π/4 radians. The encrypted histogram is uniformly distributed, and the secret key space is large, the anti-attack ability is strong. The simulation results on the classical computer show that the method has better security.

Key words: quantum image representing, chaotic sequence, quantum image encrypting, quantum image processing

CLC Number:

TP391

LU Ai-ping, LI Pan-chi. Quantum Image Encryption Scheme Based on Chaotic Sequence[J]. Computer and Modernization, doi: 10.3969/j.issn.1006-2475.2020.03.017.

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