论文标题
量子直接通信协议使用离散时间量子步行
Quantum direct communication protocols using discrete-time quantum walk
论文作者
论文摘要
量子步行的独特功能，例如沃克将位置空间叠加并与位置空间纠缠的可能性，提供了固有的优势，可以捕获以设计高安全的量子通信协议。在这里，我们提出了两个Quan-Tum直接通信协议，量子安全的直接通信（QSDC）协议和使用离散时间量子对话（CQD）协议（CQD）协议，使用离散时间量子行走在周期中。拟议的协议无条件地违背了各种攻击，例如拦截党的攻击，拒绝服务攻击，拒绝服务攻击和中间攻击。此外，在不信任的服务提供者和两个协议上，该协议与基于tothe Qubit的LM05/DL04协议相对于不信任的服务提供者和未经信任的服务提供者提供了无条件安全。
The unique features of quantum walk, such as the possibility of the walker to be in superposition ofthe position space and get entangled with the position space, provides inherent advantages that canbe captured to design highly secure quantum communication protocols. Here we propose two quan-tum direct communication protocols, a Quantum Secure Direct Communication (QSDC) protocoland a Controlled Quantum Dialogue (CQD) protocol using discrete-time quantum walk on a cycle.The proposed protocols are unconditionally secure against various attacks such as the intercept-resend attack, the denial of service attack, and the man-in-the-middle attack. Additionally, theproposed CQD protocol is shown to be unconditionally secure against an untrusted service providerand both the protocols are shown more secure against the intercept resend attack as compared tothe qubit based LM05/DL04 protocol.
