Analysis and Improvement of Steganography Protocol Based on Bell States in Noise Environment

• 作者: Shengyao Wu Wenjie Liu Xiaojun Wang Zhiguo Qu
• 来源期刊: 计算机、材料和连续体(英文)
• 学科: 物理学
• 关键词: QUANTUM STEGANOGRAPHY QUANTUM noise noise CHANNEL FIDELITY EFFICIENCY
• 年，卷（期）: 2019,（5）
• 页码范围: 607-624
• 页数: 18页
• 分类号: O41

摘要

In the field of quantum communication,quantum steganography is an important branch of quantum information hiding.In a realistic quantum communication system,quantum noises are unavoidable and will seriously impact the safety and reliability of the quantum steganographic system.Therefore,it is very important to analyze the influence of noise on the quantum steganography protocol and how to reduce the effect of noise.This paper takes the quantum steganography protocol proposed in 2010 as an example to analyze the effects of noises on information qubits and secret message qubits in the four primary quantum noise environments.The results show that when the noise factor of one quantum channel noise is known,the size of the noise factor of the other quantum channel can be adjusted accordingly,such as artificially applying noise,so that the influence of noises on the protocol is minimized.In addition,this paper also proposes a method of improving the efficiency of the steganographic protocol in a noisy environment.