Trust is the premise and foundation of secure communication, no matter in the quantum communication or classical communication. In fact, the existing quantum secure communication protocols and technologies are implicitly related to trust; or assume some trust premise in advance; or create or obtain a trust relationship. This paper studies on quantum trust model using node trust evaluation based on author's own research achievements. We introduce the trust management into quantum communication network to build secure trusted quantum communication network based on evaluating the trust values of nodes, which are used to evaluate the reliability of each user. We put forward a scheme of quantum trust model based on node trust evaluation, and describe the thought and process of trust evaluation in detail based on the principles of quantum entanglement and quantum teleportation. We analyze the feasibility and safety of this scheme, which provides a new thinking and method for establishing a credible secure quantum communication network.
Trust is the premise and foundation of secure communication, no matter in the quantum communication or classical communication. In fact, the existing quantum secure communication protocols and technologies are implicitly related to trust; or assume some trust premise in advance; or create or obtain a trust relationship. This paper studies on quantum trust model using node trust evaluation based on author's own research achievements. We introduce the trust management into quantum communication network to build secure trusted quantum communication network based on evaluating the trust values of nodes, which are used to evaluate the reliability of each user. We put forward a scheme of quantum trust model based on node trust evaluation, and describe the thought and process of trust evaluation in detail based on the principles of quantum entanglement and quantum teleportation. We analyze the feasibility and safety of this scheme, which provides a new thinking and method for establishing a credible secure quantum communication network.
Traditional methods for user identity authentication in quantum communication networks require the involvement of trusted or semi-trusted third parties, leading to cumbersome procedures and security vulnerabilities. This paper proposes a quantum identity trust evaluation model independent of trusted third parties. Within the quantum communication network environment, we conduct a detailed study and present a model for evaluating user identity trust using quantum states transmitted through the network. This model effectively prevents repudiation, deception, and eavesdropping by network users, ensuring traceability, fairness, and impartiality in the user identity trust evaluation process.
Because of its good network effect, expandability, technology easy to implement, the trust relay Quantum Key Distribution (QKD) network become future secure communication network preferred scheme. The classification and current status of the QKD network was introduced firstly; then the network model of trust relay network, network channel and key relay mode were put forward. Finally, the decisive parameters which affect the trust relay QKD networks effectiveness and performance were proposed. The simulation results confirm that the trust relay QKD network was used for secure communication is reliable.
The phenomenal progress in quantum technologies over the past decades has laid the groundwork for the construction of quantum networks, which will channel the power of quantum theory to guarantee secure and efficient communication, computation, and much more. This thesis studies the notion of trust in quantum networks. In our information age, protecting the security or anonymity of data is a key requirement. We investigate certain protocols that are fundamental to the operation and applications of quantum networks, and propose ways to test and analyse their security, in spite of adversarial intervention. Our focus is on practical methods of verifying the untrusted components, which could be incorporated into realistic networks in the near future. To begin, we propose a protocol for authenticated communication of quantum messages, by verifying the entanglement required for quantum teleportation in an experimentally feasible way. We model the performance of our scheme in the presence of noise. Furthermore, we explore such an authenticated teleportation in the one-sided device-independent scenario, where some devices used for verification may be corrupted. We derive error-tolerant self- testing bounds and extend our results to a realistic experimental setting, demonstrating the compatibility of our protocol with state-of-the-art technology. We then study anonymity, an essential feature for communication across networks. Combining the power of classical and quantum subroutines, we build a practical protocol for anonymous communication of quantum messages, without the need to trust the players in our network, their computational power, or the entanglement they share. We end by considering the verification of graph states distributed across a network of possibly dishonest players, applying our scheme to specific graph states that are central to quantum communication and computation schemes.
The overall purpose of this study is to explore the potential of quantum-based communication networks, leveraging the unique properties of quantum entanglement and superposition, to address critical applications, such as image processing, machine learning, data mining, and encryption. Additionally, this research aims to overcome the limitations of traditional binary systems in the field of computing. The basic methodology of this research involves a comprehensive investigation into the establishment of end-to-end entanglement between two quantum computers, which is fundamental for building robust quantum networks. Performance measures for quantum computers within the context of quantum networks are defined and evaluated, with a specific focus on network design, reliability, security, and trust. Quantum-dot cellular automata (QCA) devices are introduced as a technological advancement to enhance security and trust mechanisms within quantum communication networks.
As an extension of quantum key distribution, secure communication among multiple users is a basic task in a quantum network. When the quantum network structure becomes complicated with a large number of users, it is important to investigate network issues, including security, key management, latency, reliability, scalability, and cost. In this work, we utilize the classical network theory and graph theory to address two critical issues in a quantum network, security and key management. First, we design a communication scheme with the highest security level that trusts a minimum number of intermediate nodes. Second, when the quantum key is a limited resource, we design key management and data scheduling schemes to optimize the utility of data transmission. Our results can be directly applied to the current metropolitan and free-space quantum network implementations and can potentially be a standard approach for future quantum network designs.