The development of global communication networks depends on satellite communication. Due to its lower stability and reach, satellite communication networks have garnered a lot of attention recently as a means of reducing the limitations of terrestrial networks. Numerous inconveniences exist, including inadequate storage space, security, and data processing capacity. Illegal entry turned out to be the difficult one. Satellite physical limitations in terms of available power and area result in limited data processing capability, storage and security limitations, and the data may be exposed to alteration or contamination by intruders. Since satellite communication has become more crucial in the development of global communication networks, there have been worries regarding its security. This project proposes to use the QKD protocol, which relies on identification and privacy protection, along with blockchain technology to create A network of satellite communication. To accomplish this, an architecture that consists of conventional and constrained devices connected to the blockchain via a wireless heterogeneous network has been developed. The communication is conducted by registration, authentication, and revocation. After receiving the data from the satellite, the terrestrial base station will log all important parameters on the distributed blockchain and remove any certificates belonging to rogue nodes. The proposed Chain and QKD system, which is based on satellites, offers a high degree of security for rapidly growing applications such as self-driving cars, future 6G and larger networks, and the Internet of Things.
The development of global communication networks depends on satellite communication. Due to its lower stability and reach, satellite communication networks have garnered a lot of attention recently as a means of reducing the limitations of terrestrial networks. Numerous inconveniences exist, including inadequate storage space, security, and data processing capacity. Illegal entry turned out to be the difficult one. Satellite physical limitations in terms of available power and area result in limited data processing capability, storage and security limitations, and the data may be exposed to alteration or contamination by intruders. Since satellite communication has become more crucial in the development of global communication networks, there have been worries regarding its security. This project proposes to use the QKD protocol, which relies on identification and privacy protection, along with blockchain technology to create A network of satellite communication. To accomplish this, an architecture that consists of conventional and constrained devices connected to the blockchain via a wireless heterogeneous network has been developed. The communication is conducted by registration, authentication, and revocation. After receiving the data from the satellite, the terrestrial base station will log all important parameters on the distributed blockchain and remove any certificates belonging to rogue nodes. The proposed Chain and QKD system, which is based on satellites, offers a high degree of security for rapidly growing applications such as self-driving cars, future 6G and larger networks, and the Internet of Things.
The fusion of terrestrial radio and satellite communications will result in a world completely connected with sixth-generation (6G) networks. But there is a limitation of power and space available on satellites due to low computing power, limited storage space, and insufficient security occur. It is critical to utilize information storage and access protection in satellite networks efficiently to prevent data tampering and alteration. Satellite communications play an increasing role in global communication networks, creating security problems. Based on the Quantum Key Distribution (QKD) protocol, this proposal suggests a security and authentication method for satellite communication networks. A wireless and heterogeneous network architecture utilizes both open-source and commercial hardware to enable communication. The three stages of registration, authentication, and cancellation facilitate communication. As data is transmitted to satellites from ground stations, all measurements of significance are then logged on a decentralized blockchain. All certifications generated by rogue nodes are subsequently cleared from the blockchain by ground stations. It has been suggested that the technology be used with upcoming 6G networks, as well as the Internet of Things, self-driving cars, and other rapidly expanding applications.
A completely linked world with sixth generation (6G) networks is anticipated as a result of the convergence of terrestrial radio and satellite communications. Satellite physical restrictions on the amount of available power and space results in low computing power, constrained storage capacity, and compromised security. Data may therefore be susceptible to modification and contamination by others. Security concerns have arisen as satellite communications have become increasingly important to international communications networks. In satellite networks, it can be difficult to efficiently use storage and secure information access. With regard to satellite communication networks, this proposal suggests a privacy and authentication system based on QKD protocol. This is accomplished by implementing a wireless, heterogeneous network connectivity architecture that combines both open-source and commercially available devices. Registration, authentication, and revocation are the three processes that enable communication. Satellites transmit the gathered data to ground stations, which then record all significant parameters on the system's decentralized blockchain. All certificates from malicious nodes are removed from the blockchain by ground stations. It has been suggested for use with 6G networks in the future and beyond the Internet of Things, self-driving cars, and other quickly developing applications. Excellent security levels are provided by satellite-based blockchain and QKD systems.
In order to extend long-distance communication, which has been necessary to connect telecommunications networks between the countries. Satellite communication is the second most widely used technology for global communication networks after terrestrial communication networks. A variety of communication services have been provided by satellite communication to mankind, such as the prediction of weather, storm warning, relaying television programs, digital data for a wide variety of business applications and most recently mobile and telephony communications. But with satellite communication, link security continues to be a big worry. Due to restrictions like a high bit error rate, power control, wide distances among the end nodes, high link as well as link availability. To overcome this issues, this paper proposed Block quantum for secure the satellite communication. Through registration, authentication and revocation, the communication is conducted. As part of this system, the satellite transmits a collected data to a ground base station, which records key parameters on the blockchain as well as clears malicious nodes from the block chain. High security is provided by the proposed satellite-based Blockchain and Quantum Key Distribution system for the upcoming 6G and beyond networks, Internet of Things, self-driving cars as well as other rapidly evolving applications. As a result, this study demonstrate that the suggested approach has an ability to enhance security as well as protection for satellite communications.
As we move toward the rollout of 6G networks, we're stepping into an era of groundbreaking technological advancements. These next-generation networks promise ultra-low latency and seamless integration with artificial intelligence (AI) and the Internet of Things (IoT), unlocking a new level of connectivity and performance. However, with these powerful capabilities come significant security challenges. Traditional encryption methods may not be enough to protect the complex and highly sensitive data traveling through 6G networks. One of the most promising solutions lies in Quantum Communication, particularly Quantum Key Distribution (QKD)-a method that leverages the laws of quantum mechanics to enable highly secure encryption. This paper explores the emerging security risks in both terrestrial and satellite communication channels and reviews current research on integrating quantum communication into 6G infrastructure. Special attention is given to its potential within the metaverse, a rapidly evolving digital environment that demands robust and future-proof security frameworks. Key areas of focus include-Addressing security vulnerabilities in quantum communication, Enhancing infrastructure to support quantum technologies, Reducing error rates in quantum protocols. the paper aims to propose a flexible, forward-looking framework designed to ensure fast, secure communication for critical sectors such as finance, defense, and healthcare.
Quantum key distribution (QKD), the technology to generate distant secure keys for later usage in secure communication, has become a mature topic since the 1980s. While terrestrial QKD over fiber networks is suitable for short-distance urban networks, QKD via satellites promises to gap the distance requirement on a global scale that limits terrestrial QKD. Satellite QKD requires the exchange of quantum states between a satellite and multiple ground stations. The goal is then to facilitate shared secret keys between the ground stations, which can then be relayed to users near the ground stations. The satellite usually carries the quantum sources as its payload and sends them to the ground station via a downlink. The QKD protocol is heavily influenced by the choice of the quantum source, with typically one of two types: approximate single photon source (such as a weak laser) or an entangled source. Similarly, the ground station must be equipped to receive, measure and process the quantum signals sent by the satellite. Although there are also reverse schemes, where the satellite acts as the receiver and the ground station as the sender, these schemes are less explored due to higher noise in the uplink and less engineering experience. As with any system containing a high heterogeneity, many different implementation schemes lead to a variety of optimized use cases based on different criteria. Satellite QKD carries the further complication that it must be adapted to international standards. In this paper we present different satellite and ground station architectures that lean on the developments in the projects EAGLE-1, QUBE, QuNET, RoGloQuaN, addressing different protocols, sources, satellite sizes and telescope sizes. We also discuss the need for agility and configuration of components in a heterogeneous environment.
With the vastly growing need for secure communication, quantum key distribution (QKD) has been developed to provide high security for communications against potential attacks from the fast-developing quantum computers. Among different QKD protocols, continuous variable (CV-) QKD employing Gaussian modulated coherent states has been promising for its complete security proof and its compatibility with current communication systems in implementation with homodyne or heterodyne detection. Since satellite communication has been more and more important in developing global communication networks, there have been concerns about the security in satellite communication and how we should evaluate the security of CV-QKD in such scenarios. To better analyse the secure key rate (SKR) in this case, in this invited paper we investigate the CV-QKD SKR lower bounds under realistic assumptions over a satellite-to-satellite channel. We also investigate the eavesdropper's best strategy to apply in these scenarios. We demonstrate that for these channel conditions with well-chosen carrier centre frequency and receiver aperture size, based on channel parameters, we can optimize SKR correspondingly. The proposed satellite-based QKD system provides high security level for the coming 5G and beyond networks, the Internet of things, self-driving cars, and other fast-developing applications.