量子密集编码的安全性分析
首发时间:2020-04-03
摘要:量子信息是结合经典信息论和量子力学的跨学科研究领域。它已经展示出广泛的科学技术应用前景。在量子信息领域中,除了通信方案的设计,保证信息传输过程中的安全性也尤其重要。我们提出了采用克隆攻击的方式,在d维空间分析了量子密集编码通信方案的安全性;研究过程是引入了辅助量子比特,通过Pauli克隆基对传输量子态进行克隆,完成了对该方案的攻击;而后通过计算该方案在此攻击方式下的保真度及互信息量,以此证明该方案的安全性。
关键词: 光学 量子密集编码 Pauli克隆攻击 安全性分析
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The study of security during quantum dense coding in high-dimensions
Abstract:Quantum information is an interdisciplinary research field combining classical information theory and quantum mechanics. It has been shown a broad prospect of scientific and technological applications. Besides the designing of the protocol, the security analysis is also of great importance in quantum cryptography. we analyze the security of the quantum dense coding protocol in arbitrary d-dimensional space against pauli cloning attacks. Through introducing an auxiliary qubit, we clone the transmitted quantum state by Pauli cloning machine to attack on the scheme. Then the security of the scheme is proved by calculating the fidelity and mutual information of the scheme under this attack.
Keywords: optics quantum dense coding pauli cloning machine security analysis.
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