The application of quantum private communication system can improve the security protection capability of power information system. However, the application of quantum private communication system may introduce new security risks. Therefore, it is necessary to analyze and evaluate the security of quantum private communication system, relying on relevant national standards and regulations, and using traditional Security risk assessment means for risk assessment and security analysis of quantum private communication systems. This project conducts a security risk assessment for a quantum private communication system. With reference to relevant national standards, the security risk points of quantum private communication systems are studied, and the quantum private communication systems are evaluated from various aspects such as Quantum secure communication system network security, quantum key distribution equipment host security, quantum key application software security, quantum channel security. Focus on finding security risks and improve the system's own security protection capabilities. Achieve the integrity, confidentiality and usability of a quantum private communication system.
The application of quantum private communication system can improve the security protection capability of power information system. However, the application of quantum private communication system may introduce new security risks. Therefore, it is necessary to analyze and evaluate the security of quantum private communication system, relying on relevant national standards and regulations, and using traditional Security risk assessment means for risk assessment and security analysis of quantum private communication systems. This project conducts a security risk assessment for a quantum private communication system. With reference to relevant national standards, the security risk points of quantum private communication systems are studied, and the quantum private communication systems are evaluated from various aspects such as Quantum secure communication system network security, quantum key distribution equipment host security, quantum key application software security, quantum channel security. Focus on finding security risks and improve the system's own security protection capabilities. Achieve the integrity, confidentiality and usability of a quantum private communication system.
Quantum cryptography is an epoch-making technology with irreplaceable security, which has been widely used in the field of secure communication. This paper first explores the application prospects of quantum communication technology in power systems. Secondly, this paper innovatively proposes a power secure communication method based on quantum keys. At the same time, this paper constructs the quantum key secure communication network architecture and analyzes the application principle and security mechanism of quantum key. Taking the quantum key management system as the core, the author designs and implements the quantum key security storage and business security process application model. Thirdly, this paper uses the local search algorithm to optimize the parameters of the MDI-QKD protocol under symmetric and asymmetric conditions, and gives its optimized key rate. Finally, this paper uses the actual quantum key distribution equipment, quantum VPN and network tester to build an experimental environment. The system uses a comprehensive network tester to simulate the power grid application business information to test and statistically analyze the core performance characteristics of quantum VPN, such as throughput, delay, and encryption algorithm. The experimental results can provide a reference for the popularization and application of the quantum secure communication system in the power grid production control and management information business.
With the construction of State Grid informatization, professional data such as operation inspection, marketing, and regulation have gradually shifted from offline to online. In recent years, cyberspace security incidents have occurred frequently, and national and group cybersecurity threats have emerged. As the next-generation communication system, quantum security has to satisfy the security requirements. Also, it is especially important to build the fusion application of energy network quantum private communication technology and conventional network, and to form a safe and reliable quantum-level communication technology solution suitable for the power grid. In this paper, from the perspective of the multi-terminal quantum key application, combined with a mature electricity consumption information collection system, a handheld meter reading solution based on quantum private communication technology is proposed to effectively integrate the two and achieve technological upgrading. First, from the technical theory and application fields, the current situation of quantum private communication technology and its feasibility of combining with classical facilities are introduced and analyzed. Then, the hardware security module and handheld meter reading terminal equipment are taken as typical examples to design and realize quantum key shared storage, business security process application model; finally, based on the overall environment of quantum key distribution, the architecture design of multi-terminal quantum key application verification is implemented to verify the quantum key business application process.
With the expansion of the power grid and the increase of the complexity of the power system, the power grid has more stringent requirements for the security of the services transmission. In the secondary protection system of power systems, traditional encryption devices use symmetric encryption algorithms to add and decrypt communication data. Quantum keys have extremely high security. Applying the quantum keys to the power communication network encryption devices can greatly improve the security of service transmission. The quantum key resources generated by the existing quantum key distribution devices is limited, and it is difficult to ensure that all power services data are encrypted and transmitted. Therefore, it is necessary to prioritize the confidential transmission of important services by establishing appropriate evaluation methods for services importance. A relative importance matrix based on the transmission performance indicators of each service was built under the background of quantum communication, so as to obtain the importance of the power communication network business, and to carry out subsequent quantum key application strategy research.
The project "Quantum-Based Private Chatspace for Secure Organization" focuses on developing a secure communication platform tailored for organizational use. Leveraging quantum communication technologies, it aims to establish a chat environment capable of protecting sensitive information. The system will utilize quantum key distribution (QKD) to create and exchange cryptographic keys that are inherently resistant to eavesdropping, laying a solid foundation for secure communication. Key features will include end-to-end encryption, message integrity checks, and user authentication to meet enterprise-level security demands. The implementation of quantum security protocols will greatly strengthen data privacy and confidentiality, offering a cutting-edge defense against modern cyber threats. Furthermore, the project will involve a detailed assessment of potential security risks and rigorous testing to validate the system’s reliability and real-world applicability, thereby promoting advanced communication solutions in organizational settings.
The emergence of quantum computing poses significant risks to conventional network security, prompting researchers to focus on developments in quantum cryptography, particularly Quantum Key Distribution (QKD).According to research, it has been found that traditional security methods, like RSA encryption, could potentially be at risk from quantum algorithms.On the other hand, quantum cryptography is a field of study that leverages the principles of quantum mechanics to improve the security of communication.One of the techniques used in quantum cryptography is Quantum Key Distribution (QKD), which makes use of the unique properties of quantum particles such as photons to securely distribute encryption keys and detect any potential eavesdropping attempts, thanks to the uncertainty principle.Nevertheless, the integration of QKD into current network infrastructures poses significant challenges due to the required technological advancements.This study offers a comprehensive analysis of the fundamental principles underlying quantum cryptography, the obstacles that arise during its implementation, and its potential prospects for protecting against the risks posed by advancements in quantum computing.Furthermore, this study delves into the potential consequences of these technological advancements across different industries and emphasizes the need to create algorithms that can withstand quantum attacks to guarantee strong data security in the age of digitalization.
Although quantum communication systems are being deployed on a global scale, their realistic security certification is not yet available. Here we present a security evaluation and improvement protocol for complete quantum communication systems. The protocol subdivides a system by defining seven system implementation sub-layers based on a hierarchical order of information flow; then it categorises the known system implementation imperfections by hardness of protection and practical risk. Next, an initial analysis report lists all potential loopholes in its quantum-optical part. It is followed by interactions with the system manufacturer, testing and patching most loopholes, and re-assessing their status. Our protocol has been applied on multiple commercial quantum key distribution systems to improve their security. A detailed description of our methodology is presented with the example of a subcarrier-wave system. Our protocol is a step towards future security evaluation and security certification standards.