Utilizing designated verifiers in consumer-centric electronic voting (CCEV) systems not only enhances confidentiality but also upholds authenticity, validates the accuracy of votes, and protects participants’ privacy. Besides, integrating blockchain technology offers a decentralized and tamper-resistant solution that addresses issues like the single point of failure of traditional CCEV systems. However, the emergence of quantum computing introduces new security threats to established blockchain-based CCEV systems. To ensure the confidentiality and integrity of the voting process, we suggest a quantum blockchain-enabled CCEV system with designated verification that employs principles such as quantum key distribution and the no-cloning theorem. The suggested framework combines quantum computing with blockchain to make CCEV safe and resistant to quantum attacks, and to lower the chance of tampering. The security analysis section showcases the security features offered by the proposed system, including designated verification, source hiding, and non-transferability properties. Furthermore, a detailed performance analysis demonstrates the potential of the suggested system based on computational and communication efficiency with other existing state-of-the-art protocols. Therefore, our system provides enhanced security features, making it more suitable and effective for CCEV.
Utilizing designated verifiers in consumer-centric electronic voting (CCEV) systems not only enhances confidentiality but also upholds authenticity, validates the accuracy of votes, and protects participants’ privacy. Besides, integrating blockchain technology offers a decentralized and tamper-resistant solution that addresses issues like the single point of failure of traditional CCEV systems. However, the emergence of quantum computing introduces new security threats to established blockchain-based CCEV systems. To ensure the confidentiality and integrity of the voting process, we suggest a quantum blockchain-enabled CCEV system with designated verification that employs principles such as quantum key distribution and the no-cloning theorem. The suggested framework combines quantum computing with blockchain to make CCEV safe and resistant to quantum attacks, and to lower the chance of tampering. The security analysis section showcases the security features offered by the proposed system, including designated verification, source hiding, and non-transferability properties. Furthermore, a detailed performance analysis demonstrates the potential of the suggested system based on computational and communication efficiency with other existing state-of-the-art protocols. Therefore, our system provides enhanced security features, making it more suitable and effective for CCEV.
The rapid advancement of internet technology has raised attention to the importance of electronic voting in maintaining democracy and fairness in elections. E-voting refers to the use of electronic technology to facilitate the casting and counting of votes in elections. The need for designated verification arises from concerns about voter privacy, auditability, and the prevention of manipulation. Traditional e-voting systems use cryptographic techniques for security but lack verifiable proof of integrity. Integrating e-voting with a quantum designated verifier could address these challenges by leveraging the principles of quantum mechanics to enhance security and trustworthiness. In light of this, we propose a quantum e-voting scheme that uses a designated verifier signature. To ensure the confidentiality and authenticity of the voting process, the scheme uses quantum features like the no-cloning theorem and quantum key distribution. The proposed scheme has security properties like source hiding, non-transferability, and message anonymity. The proposed scheme is resistant to many quantum attacks, such as eavesdropping and impersonation. Due to designated verification, the scheme minimizes the risk of tempering. This paper provides a detailed description of the proposed scheme and analyzes its security properties. Therefore, the proposed scheme is efficient, practical, and secure.
In the age of digital transformation, the integrity and security of online voting systems have become a growing concern. Traditional cryptography methods are vulnerable to advances in quantum computing, demanding the need for more secure alternatives. This paper explores the application of quantum cryptography in enhancing the security of blockchain-based voting systems, a decentralized and transparent approach to conduct elections. We introduce a novel quantum-resistant voting protocol that integrates Quantum Key Distribution (QKD) with post-quantum cryptographic algorithms, ensuring secure voter authentication, vote casting, and tallying. The methodology combines quantum encryption with blockchain's immutability to create a tamper-proof voting ledger, preventing unauthorized access and vote manipulation. It gives an analysis of potential real-world implementations, positioning a hybrid quantum-blockchain framework as a promising solution for future secure electronic voting systems.
The rapid proliferation of Consumer-Centric Internet of Things (CCIoT) devices has resulted in massive volumes of data being generated and transmitted across edge and cloud infrastructures. However, limited computational and memory resources, coupled with the vulnerabilities of open communication networks, expose CCIoT ecosystems to severe security threats. With the advent of quantum computing, traditional cryptographic schemes risk becoming obsolete, necessitating the integration of quantum cryptography into edge-assisted CCIoT protocols. In this paper, we propose a blockchain-enabled quantum-designated verifier signature protocol designed to ensure secure data transmission and storage within CCIoT networks. The protocol leverages a private blockchain, where peer nodes generate blocks from service-provider data, thereby enhancing confidentiality and integrity. Informal security verification and informal analysis confirm the robustness of the scheme against both classical and quantum adversaries. Extensive experiments, implemented in Python, evaluate the proposed quantum signature protocol theoretically and practically. The results demonstrate strong encryption performance, achieving a computational cost of 41.5 ms and communication overhead of 834 bits, outperforming recent benchmark schemes. The findings highlight the superior reliability, scalability, and efficiency of our approach, offering a viable quantum security solution for future CCIoT ecosystems.
The integration of consumer-centric digital twin (CCDT) technology is set to transform healthcare systems, enabling blockchain-based solutions for enhanced medical services. By precisely simulating patients and medical processes, CCDT establish a link to the virtual healthcare environment, supporting improved diagnosis, real-time monitoring, and predictive analytics. Blockchain technology is critical in connecting the physical and virtual health care worlds, providing secure storage, efficient communication, reduced computational costs, and reliable hosting services. However, the security of patient data and its digital twin counterpart stored on the blockchain remains a potential vulnerability, as any alteration or unauthorized access to this information could pose significant risks. To address this challenge, we propose a blockchain-enabled quantum encryption protocol for CCDT healthcare networks to ensure secure communication. The proposed protocol leverages blockchain to authenticate patients without relying on third-party entities. At the same time, a secure quantum encryption mechanism ensures that CCDT do not need to authenticate repeatedly when interacting with multiple healthcare providers. A performance evaluation demonstrates the effectiveness of the proposed scheme compared to existing encryption methods. The results indicate that the suggested protocol is resilient against various security threats, showcasing its significant potential for enhancing communication security within CCDT healthcare networks.
Ensuring the security and integrity of voting systems is crucial for maintaining democratic processes. With the rise of cyber threats targeting electronic voting, traditional cryptographic methods are proving inadequate in safeguarding against sophisticated attacks. Quantum cryptography, particularly Quantum Key Distribution (QKD), offers a promising solution to enhance the security of voting systems by leveraging the principles of quantum mechanics. This research explores the application of quantum cryptography in secure voting, highlighting its potential to address vulnerabilities in current systems. The study examines the technological, practical, and legal challenges of implementing quantum-based voting systems, including infrastructure requirements and public acceptance. Furthermore, it assesses how quantum cryptography ensures voter privacy, prevents tampering, and provides robust protection against future quantum computing threats. While significant hurdles remain, the integration of quantum cryptographic techniques presents a transformative opportunity to create more secure and transparent voting processes. This paper outlines the roadmap for adopting quantum cryptography in voting systems and its potential impact on electoral integrity.
The advent of quantum computing poses a significant threat to the cryptographic foundations of current electronic voting (e-voting) systems, which commonly rely on algorithms such as Rivest-Shamir-Adleman (RSA) and Elliptic Curve Cryptography (ECC). These algorithms are believed to be vulnerable to attacks imposed by quantum computers, jeopardizing core e-voting properties, including ballot secrecy, integrity, and auditability. To address these challenges, this work presents a quantum-resistant electronic-voting (e-voting) system, named post-quantum e-voting system (PQEVS) built entirely upon cryptographic primitives standardized by the National Institute of Standards and Technology (NIST) for post-quantum security. The proposed PQEVS utilizes Dilithium for secure voter authentication, Brakerski/Fan-Vercauteren (BFV)-based Fully Homomorphic Encryption (FHE) for privacy-preserving vote tallying, and Picnic-based Zero-Knowledge Proofs (ZKPs) to ensure vote validity without compromising voter anonymity. Designed for modularity and scalability, our PQEVS delivers enhanced security while achieving significant performance gains, reducing vote processing latency by 85% and supporting throughputs of up to 36,000 votes per second. These results highlight the practicality and robustness of post-quantum cryptography in securing large-scale electoral processes, setting a new benchmark for verifiable and future-proof e-voting systems.