This article explores the importance and challenges of secret sharing technology in the context of rapid advancements in information technology. With increasing attention on data security and privacy protection, secret sharing serves as a key cryptographic technique that ensures secure data transmission, storage, and multi-party computation by dividing secrets into multiple shares. However, existing solutions encounter performance bottlenecks when dealing with large-scale datasets, managing share updates in dynamic environments, and facing quantum computing threats. This article systematically summarizes the basic concepts, theories, classifications, and characteristics of secret sharing while analyzing its applications in financial security, medical privacy, and other fields. Furthermore, it presents recent research progress on dynamic secret sharing and anti-quantum secret sharing. The findings indicate that dynamic secret sharing schemes improve long-term key storage security, while anti-quantum secret sharing provides a solution to counteract quantum computing threats. This study not only deepens understanding of secret sharing technology but also offers insights for future research directions, significantly contributing to enhancing data protection levels.
This article explores the importance and challenges of secret sharing technology in the context of rapid advancements in information technology. With increasing attention on data security and privacy protection, secret sharing serves as a key cryptographic technique that ensures secure data transmission, storage, and multi-party computation by dividing secrets into multiple shares. However, existing solutions encounter performance bottlenecks when dealing with large-scale datasets, managing share updates in dynamic environments, and facing quantum computing threats. This article systematically summarizes the basic concepts, theories, classifications, and characteristics of secret sharing while analyzing its applications in financial security, medical privacy, and other fields. Furthermore, it presents recent research progress on dynamic secret sharing and anti-quantum secret sharing. The findings indicate that dynamic secret sharing schemes improve long-term key storage security, while anti-quantum secret sharing provides a solution to counteract quantum computing threats. This study not only deepens understanding of secret sharing technology but also offers insights for future research directions, significantly contributing to enhancing data protection levels.
As quantum computing advances, the potential threat to data privacy intensifies, necessitating a proactive approach to strengthen international data protection measures. This article explores the current state of data privacy, the impact of quantum computing, and proposes strategies for addressing the challenges and opportunities presented by this evolving technology. Through a comprehensive literature review and expert interviews, we identify key areas for improvement and provide recommendations for policymakers, organizations, and individuals to enhance data privacy in the quantum era. The findings highlight the importance of developing quantum-resistant cryptography, adopting privacy-enhancing technologies, fostering international cooperation, and investing in research and development efforts to ensure the protection of sensitive data in the face of quantum computing.
Quantum secret sharing (QSS), as a quantum extension of classical secret sharing, uses the basic principles of quantum mechanics to share information safely among multiple parties, providing a new paradigm for information security. As a key foundation for secure multiparty quantum communication and distributed quantum computing, QSS has attracted considerable attention since its emergence. Currently, research in this field includes both classical and quantum scenarios, and continuous progress has been made in both theoretical and experimental aspects. This paper first reviews the current development of QSS for classical information. In this regard, significant and parallel progress has been made in both discrete-variable QSS and continuous-variable QSS. The QSS protocols for sharing classical information, from entangled states to single photons and then to coherent light, have been continuously optimized to better utilize available resources and achieve more efficient implementation under current technological conditions. Meanwhile, round-robin, measurement-device-independent, and other protocols have been steadily improving the security of QSS. Next, one will focus on QSS scheme for quantum secrets, which begins with the symmetry of access structures and introduces basic (k, n) threshold protocols, dynamic schemes that support adaptive agent groups, and symmetric quantum information splitting through entanglement. It further introduces hierarchical quantum secret sharing schemes for asymmetric splitting of quantum information. Considering practical laboratory conditions of quantum states as resources, an overall discussion is conducted on quantum secret sharing with graph states. Afterwards, the design of a continuous-variable scheme for quantum secret sharing is outlined, and entanglement state sharing and quantum teleportation between multiple senders and receivers are introduced. Finally, this review discusses and outlines the future development directions of QSS, thereby inspiring readers to further study and explore the relevant subjects.
Quantum computing, based on the principles of quantum mechanics, is rapidly gaining momentum as a promising field of information technology.However, with the growing capabilities of quantum computing comes a new level of cybersecurity.Quantum-secure cryptography is emerging as a response to the potential threats posed by quantum computers to traditional cryptographic methods.The main goal of quantum-secure cryptography is to ensure the security of data in information systems, as quantum computing becomes more and more accessible.In this study, we thoroughly studied the essence of quantum-secure cryptography, its fundamental principles and applications.We have explored the advantages and limitations of this new cryptographic paradigm and discussed the potential challenges that arise in the context of its implementation.In addition, we analyzed the current state of research in the field of quantum-secure cryptography and highlighted the prospects for further development of this intriguing technology.We have researched potential threats and possible ways to solve them.Additionally, we reviewed a quantum risk assessment methodology that helps identify and manage threats in the context of quantum security.Finally, we trace existing examples and recent developments in the field of quantum-secure cryptography, revealing their potential to improve information security in the future.Overall, the research allows for a better understanding of the importance and prospects of quantum-secure cryptography in today's digital world.
This research addresses the critical challenge of maintaining network security and privacy in the face of emerging quantum computing technologies. While classical cryptographic methods have long been the cornerstone of network security, the advent of quantum computing threatens to render many of these techniques obsolete. While previously proposed solutions, such as post-quantum cryptography and quantum key distribution, are useful in some aspects of maintaining the security of communications between individuals or organizations, they are often insufficient to protect against the full range of security implications that arise from quantum computing, especially in open shared quantum computing environments. Research in this area is largely challenged by the immaturity of the quantum hardware, quantum error correction, and how to best design secure quantum-safe network architectures in the long term, lack of frameworks for cryptography, and we have very little idea about the best way to use quantum computers to perform certain types of cryptographic attacks for periods well into the future, known as ‘collect now, break later’ attacks. This paper uses qualitative methodology which is based on systematic literature reviews, using case studies and a document analysis, with the purpose of providing an unabridged and precise assessment on the impact of quantum computing on network security. The study synthesizes the findings from several academic databases regarding the use of quantum technologies in real-world security applications. The findings highlight that quantum computing brings about breakthrough levels of computational power, as well as allowing for super-secure data transmission with quantum key distribution. But there are also new risks, such as crosstalk attacks, qubit sensing attacks and challenges from quantum decoherence and scalability. The paper identifies possible mitigation measures, including new techniques for quantum error correction, quantum-safe cryptography and novel approaches for quantum resources sharing. The findings are of significance for the economy and society as a whole, as they outline the urgency to shift security approaches for networks by developing quantum-safe algorithms and protocols, the importance of interdisciplinary collaboration to this end, and the need to develop policies to prepare for a post-quantum cryptographic era. This range of analysis offers to the researchers, policy-makers and industry professionals a roadmap and concrete guiding principles for future innovation and development of quantum-enhanced network security, concluding that although quantum computing poses as a profound security threat, it could, at the same time, offer revolutionary pathways for secure communications and data-protection when used properly.
With the rise of quantum computing, traditional cryptography is facing serious threats. Secret sharing, as an important primitive of cryptography, is also affected. Because secret sharing is widely used in many fields, researchers have started to explore quantum secret sharing (QSS). QSS uses basic principles of quantum mechanics to provide strong security and can protect against both eavesdropping and malicious attacks. However, most existing QSS studies focus on specific situations and lack the flexibility needed for complex multiparty environments. In this work, we propose a general QSS framework that can be applied to different scenarios. We first design a basic [Formula: see text] QSS protocol, and then extend it to support multiparty communication and dynamic changes in participants. Our security analysis shows that the proposed method keeps strong security, uses fewer resources, and works independently without the need for a trusted third party (TP). This protocol offers a unified solution that can meet different application needs and provides a new approach to handling diverse QSS tasks more efficiently.
Image security for information has become increasingly critical as internet become more prevalent due to hacking and unauthorized access. To ensure the security of confidential image data, image encryption using visual cryptography plays a crucial role. To share multiple images using visual cryptography, the company organizer utilizes the concept of a universal or common share. Likewise, quantum computing is an emerging technology that facilitates secure communication. The ability of quantum computers to solve certain mathematical problems efficiently threatens the security of many current encryption algorithms. Hence, to leverage the strengths of quantum computing and visual cryptography, this research introduces a novel universal share-based quantum multi-secret sharing technique for secure image communication. Quantum computing enables the scheme to exhibit high resilience to different eavesdropping threats. Consequently, the proposed method offers robust security solution for sharing confidential images across a range of applications, including enterprise data access and military communications.