One of the most significant threats that hinder the effective functioning of existing models and technologies in 6G networks, particularly within the realms of Industry 5.0, is the lack of privacy and security. Traditional cryptographic models that were once considered secure have proven to be vulnerable to an expanding range of threats, such as quantum attacks. This vulnerability results in the exposure of sensitive data to unauthorized breaches and compromises the integrity and overall functionality of the network. Access control mechanisms implemented up to this point could not ensure that security compromises are prevented as secure data sharing is facilitated effortlessly. As a result, attempts to access sensitive data without authorization are often made, leaving the networks vulnerable to distributed denial of service (DDoS) attacks that have the potential to disrupt their operation. Considering these pervasive challenges, our article proposes an innovative hybrid protocol suite explicitly designed for 6G networks in Industry 5.0. Specifically, our approach integrates leading-edge technologies, such as nth-degree truncated polynomial ring unit encryption with supersingular isogeny Diffie–Hellman (NTRUEncrypt-SIDH) and key-policy attribute-based encryption (KP-ABE). It aims to address the vulnerabilities associated with traditional cryptographic models to ensure high confidentiality and authorized data sharing. Moreover, we implement modern DDoS mitigation techniques, such as rate limiting, traffic filtering, and adaptive routing, to enhance the resilience of the network and ensure that system operation remains uninterrupted. Experimental evaluations demonstrate the superiority of the proposed model over existing standards. Notably, the hybrid protocol achieves encryption and decryption times of 1.8 s and 1.667 s per gigabyte (GB), respectively, with a key generation time of 2.857 s per GB, ensuring efficient performance even in resource-constrained environments. The system achieves a total computational overhead of 11.7 ms for KP-ABE combined with NTRUEncrypt-SIDH, outperforming other cryptographic combinations. In addition, the model exhibits enhanced scalability, flexibility, and security, offering robust defenses against quantum and classical threats while ensuring seamless user policy-based access control. These results underscore the proposed hybrid cryptosystem's potential as a transformative standard for the secure and efficient operation of 6G networks in Industry 5.0.
One of the most significant threats that hinder the effective functioning of existing models and technologies in 6G networks, particularly within the realms of Industry 5.0, is the lack of privacy and security. Traditional cryptographic models that were once considered secure have proven to be vulnerable to an expanding range of threats, such as quantum attacks. This vulnerability results in the exposure of sensitive data to unauthorized breaches and compromises the integrity and overall functionality of the network. Access control mechanisms implemented up to this point could not ensure that security compromises are prevented as secure data sharing is facilitated effortlessly. As a result, attempts to access sensitive data without authorization are often made, leaving the networks vulnerable to distributed denial of service (DDoS) attacks that have the potential to disrupt their operation. Considering these pervasive challenges, our article proposes an innovative hybrid protocol suite explicitly designed for 6G networks in Industry 5.0. Specifically, our approach integrates leading-edge technologies, such as nth-degree truncated polynomial ring unit encryption with supersingular isogeny Diffie–Hellman (NTRUEncrypt-SIDH) and key-policy attribute-based encryption (KP-ABE). It aims to address the vulnerabilities associated with traditional cryptographic models to ensure high confidentiality and authorized data sharing. Moreover, we implement modern DDoS mitigation techniques, such as rate limiting, traffic filtering, and adaptive routing, to enhance the resilience of the network and ensure that system operation remains uninterrupted. Experimental evaluations demonstrate the superiority of the proposed model over existing standards. Notably, the hybrid protocol achieves encryption and decryption times of 1.8 s and 1.667 s per gigabyte (GB), respectively, with a key generation time of 2.857 s per GB, ensuring efficient performance even in resource-constrained environments. The system achieves a total computational overhead of 11.7 ms for KP-ABE combined with NTRUEncrypt-SIDH, outperforming other cryptographic combinations. In addition, the model exhibits enhanced scalability, flexibility, and security, offering robust defenses against quantum and classical threats while ensuring seamless user policy-based access control. These results underscore the proposed hybrid cryptosystem's potential as a transformative standard for the secure and efficient operation of 6G networks in Industry 5.0.
The evolution of 6G networks necessitates robust authentication and key agreement (AKA) protocols to counter emerging security challenges, particularly the threat posed by quantum computing. Existing 5G-AKA protocols remain vulnerable to user tracking, replay attacks, and false base station impersonation, while Elliptic Curve Cryptography (ECC) and RSA-based key exchanges face imminent obsolescence due to quantum attacks. This study examines the vulnerabilities of 5G-AKA and explores hybrid post-quantum cryptography (PQC) as a transitional security solution for 6G networks. We evaluate NIST-standardized PQC algorithms, focusing on their computational overhead, key size efficiency, and adaptability to heterogeneous network environments, including IoT and ultra-low latency applications. A comparative analysis of hybrid cryptographic schemes demonstrates that lattice-based (Kyber, Dilithium), hash-based (SPHINCS+), and code-based (BIKE, Classic McEliece) PQC techniques provide varying trade-offs between security, efficiency, and deployment feasibility. Furthermore, we propose a quantum-resistant 6G-AKA framework, integrating hybrid PQC, AI-driven trust mechanisms, and decentralized authentication to ensure scalability and interoperability. Experimental benchmarks highlight potential performance constraints, including latency in PQC-based key exchange and resource limitations in edge computing. Addressing these challenges requires the optimization of lightweight PQC implementations, formal security validation, and global standardization efforts. Our findings provide a roadmap for the secure transition to 6G authentication protocols, ensuring resilience against both classical and quantum threats.
Touch Healthcare (ZTH) in the 6G era envisions fully autonomous, intelligent, and secure healthcare systems enabled by IoT, quantum communication, and decentralized cloud infrastructures. As IoT devices proliferate in smart healthcare, they generate vast volumes of sensitive physiological data, requiring robust, scalable, and future-proof protection mechanisms. This paper presents a Quantum-Secured Hybrid Encryption Framework empowered by blockchain and Zero-Touch principles to ensure end-to-end confidentiality, integrity, and trust. The framework integrates a trusted authority for access control, quantum key controllers for cryptographic key generation, and secure data vaults for encrypted storage. Blockchain-enabled consensus nodes function as proxy service nodes, eliminating reliance on centralized service providers while securely managing cipher-text transactions in a distributed manner. The proposed system resists replay, side-channel, Sybil, and eavesdropping attacks and minimizes tampering risks through targeted quantum-based verification. Simulated results demonstrate a 93.33% accuracy rate, with discrepancies primarily caused by quantum device noise. By combining quantum encryption and blockchain within an AI-driven Zero-Touch architecture, this framework establishes a secure, decentralized, and resilient model for next-generation healthcare data sharing over 6G networks. Zero-Touch Healthcare (ZTH) in the 6G era envisions fully autonomous, intelligent, and secure healthcare systems enabled by IoT, quantum communication, and decentralized cloud infrastructures. As IoT devices proliferate in smart healthcare, they generate vast volumes of sensitive physiological data, requiring robust, scalable, and future-proof protection mechanisms. This paper presents a Quantum-Secured Hybrid Encryption Framework empowered by blockchain and Zero-Touch principles to ensure end-to-end confidentiality, integrity, and trust. The framework integrates a trusted authority for access control, quantum key controllers for cryptographic key generation, and secure data vaults for encrypted storage. Blockchain-enabled consensus nodes function as proxy service nodes, eliminating reliance on centralized service providers while securely managing cipher-text transactions in a distributed manner. The proposed system resists replay, side-channel, Sybil, and eavesdropping attacks and minimizes tampering risks through targeted quantum-based verification. Simulated results demonstrate a 93.33% accuracy rate, with discrepancies primarily caused by quantum device noise. By combining quantum encryption and blockchain within an AI-driven Zero-Touch architecture, this framework establishes a secure, decentralized, and resilient model for next-generation healthcare data sharing over 6G networks.
The advent of 6G terahertz (THz) communication networks offers unparalleled data rates and ultra-dense device connectivity but introduces tremendous vulnerabilities to quantum computing attacks. Conventional cryptographic techniques such as RSA and ECC are becoming increasingly vulnerable to quantum attacks and are thus a serious threat to network integrity and data confidentiality. The research here addresses the challenge of protecting 6G-THz networks from quantum adversaries by designing a quantum-resilient cryptographic protocol for ultra-dense network scenarios. The main objective is to offer resilient, scalable, and low-latency encryption and authentication to enable high-throughput THz communications. The system leverages lattice-based post-quantum cryptography combined with a light-weight key distribution protocol and hierarchical identity management to support massive device connectivity. The novelty lies in the adaptive blending of post-quantum primitives optimized to the bandwidth and latency limitations inherent in THz systems, combined with context-aware key negotiation to remove quantum threats in real time. The protocol significantly enhances future network resilience in quantum-enabled adversarial networks.
As the digital landscape evolves, the reliance on cloud computing for critical infrastructure across various sectors highlights the need for robust security mechanisms to protect sensitive data from emerging cyber threats, particularly those posed by quantum computing. Traditional cryptographic systems, while currently effective, are vulnerable to quantum attacks, necessitating the development of quantum-resistant solutions. This research introduces the Quantum-Resilient Cryptographic Framework (QRCF), a hybrid, adaptive cryptographic framework designed to safeguard cloud environments against both classical and quantum threats. The QRCF integrates lattice-based Kyber and code-based McEliece algorithms, offering a comprehensive and scalable solution for secure data storage, management, and transmission. Key contributions include the development of a dynamic security management layer that adapts to real-time threat analysis, ensuring continuous protection against evolving threats, and the implementation of robust post-quantum cryptographic methods that maintain high performance and low computational overhead. Quantitative analysis shows that the QRCF maintains a high throughput of 420 MB/s for encryption and 400 MB/s for decryption under normal operations, with latency as low as 3.2 ms and 3.6 ms, respectively. The framework exhibited strong resistance to various attack models, with success rates of 1.0% for brute-force attacks, 1.875% for MITM attacks, 0.833% for side-channel attacks, and 1.6% for replay attacks. Against quantum threats, the QRCF showed no vulnerability to Shor’s Algorithm and a minimal success rate of 0.667% for Grover’s Algorithm. The framework’s design ensures seamless integration with existing cloud infrastructures, providing practical migration strategies to quantum-safe cryptography without disrupting operational workflows. By addressing key research gaps in quantum-safe cloud security, this study contributes significantly to the field, offering a robust, scalable, and efficient cryptographic solution that enhances the security and operational performance of cloud environments in the face of advancing quantum computational capabilities.
The 5G network is a key driver of digital transformation and the Fourth Industrial Revolution. The services offered by the 5G platform are synergistic and scalable, allowing for significantly increased data rates across different radio access technologies (RATs). 5G technology allows companies to connect more devices with faster information exchange, which leads to increased potential vulnerabilities and significantly expanded threat and attack vectors. Security and privacy issues, such as network spoofing and lack of privacy in previous RAN generations, have been closely studied by security experts. To address these issues, the 3GPP standardization bodies have defined the AKA authentication and key management protocol and procedures. These include mutual authentication between user devices and the network, signal integrity and confidentiality, and derivation of cryptographic keys to protect U-plane and C-plane data. However, there are significant vulnerabilities in the 5G network APIs, in particular regarding weak protection of user personal data and the possibility of unauthorized access to IoT devices. These vulnerabilities are critical for remote control systems. The 5G-AKA protocol has been found to have shortcomings and it is generally believed that AKA does not provide adequate protection of personal data from active attackers. It is noted that AKA needs to be endowed with essential security features that are currently missing. The paper considers the implementation of quantum-protected encryption for the development of authentication protocols and key distribution in networks. The paper presents a key encapsulation algorithm based on the LINE cryptosystem with logarithmic signatures for the development of authentication and key coordination protocols in 5G networks. The use of LINE directional encryption offers advantages in scalability and heterogeneity, optimizing the computational and operational costs of the network.
Sixth-generation (6G) networks offer unprecedented ultra-reliability, capacity, and low-latency communication. Nevertheless, the same developments also pose security threats to complex communication infrastructures that may be resistant to traditional cryptographic tools, especially in the context of quantum computing. Quantum Key Distribution (QKD) is an innovative technique for achieving unconditional security that leverages quantum-mechanical principles to share cryptographic keys securely. This paper discusses how QKD can be integrated into 6G and beyond networks and used to ensure the confidentiality and integrity of data across applications such as autonomous systems, the Internet of Things (IoT), and smart city infrastructure. This paper explores the architecture of QKD-based 6G communication, key-generation systems, and quantum-resistant network layers. It also examines scalability, synchronization, and hardware implementation, and suggests possible hybrid approaches for integrating classical and quantum security protocols. The results imply that the idea of QKD may become the foundation of safeguarded communication systems in the future, ensuring resilience against attacks in the quantum era and enabling individuals to trust the next generation of wireless.