The advent of quantum computers introduces new challenges to the fields of encryption and authentication. Traditional cryptographic systems, such as RSA and ECC, rely on mathematical problems that are computationally hard for classical computers to solve. However, quantum computers have the potential to render these algorithms ineffective by leveraging Shor's algorithm, which can efficiently factor large numbers and solve the discrete logarithm problem. This capability threatens the security of many widely deployed encryption and authentication schemes. There have been a number of post-quantum cryptography methods proposed in the past. However, they are either relatively difficult to implement in current small-scale quantum computers or they do not take noise and error mitigation into account. In this paper, we propose a new framework of post-quantum key generation and identity verification mechanisms which are relatively easy to implement and adapt. Our approaches take the noisy nature of current quantum devices into consideration. As a result, our proposed approach can resist attacks from malicious quantum computers and the successful attack rate could quickly decay to zero as the number of qubits increases.
The advent of quantum computers introduces new challenges to the fields of encryption and authentication. Traditional cryptographic systems, such as RSA and ECC, rely on mathematical problems that are computationally hard for classical computers to solve. However, quantum computers have the potential to render these algorithms ineffective by leveraging Shor's algorithm, which can efficiently factor large numbers and solve the discrete logarithm problem. This capability threatens the security of many widely deployed encryption and authentication schemes. There have been a number of post-quantum cryptography methods proposed in the past. However, they are either relatively difficult to implement in current small-scale quantum computers or they do not take noise and error mitigation into account. In this paper, we propose a new framework of post-quantum key generation and identity verification mechanisms which are relatively easy to implement and adapt. Our approaches take the noisy nature of current quantum devices into consideration. As a result, our proposed approach can resist attacks from malicious quantum computers and the successful attack rate could quickly decay to zero as the number of qubits increases.
The rapid growth of quantum computing poses a critical threat to classical cryptographic systems. That is due in large part to the fact that they represent efficient solutions for some of the most challenging mathematical problems such as integer factoring or finding discrete logarithms. Schemes currently in wide use including RSA, Diffie–Hellman, and elliptic curve cryptography are particularly susceptible to being attacked by quantum computers, using algorithms like Shor's Algorithm and Grover's Algorithm. The advent of post-quantum cryptography (PQC) provides a promising potential answer to providing longterm security from adversaries using quantum computing capabilities. This paper presents a comprehensive state-of-the-art review of various PQC techniques currently being researched, including lattice-based methods, code-based methods, multivariate methods, hash-based methods, and isogeny-based methods. key challenges that will need to be addressed include computational overhead, large key sizes and implementation complexity. Furthermore the study reviews the current standardization efforts by the National Institute of Standards and Technology related to PQC and discusses some of the very specific practical considerations that need to be considered before widely deploying these techniques. The paper concludes by a complete list of existing research challenges and proposed future work that will assist in the development of efficient and scalable systems that will resist attacks from quantum computers.
Quantum computing presents a significant threat to traditional cryptographic protocols, particularly those relying on the hardness of factoring large integers and computing discrete logarithms, as quantum algorithms can solve these problems in polynomial time. With the advent of quantum computers capable of breaking current cryptographic schemes, the need for quantum-resistant cryptographic mechanisms has become increasingly urgent. In this paper, we focused on authentication, a critical security property, and reviewed various classical cryptographic techniques to this aim and their potential to resist quantum attacks. We present a (non-exhaustive) overview of the state of the art in quantum-resistant authentication, particularly through symmetric cryptography, digital signatures, and hardware-based approaches such as physical unclonable functions (PUFs). By offering a clear and focused analysis, we used this survey to bridge the gap between diverse academic communities and provide a foundation for future research in post-quantum authentication.
The rise of quantum computing poses a serious threat to traditional cryptosystems, such as RSA and ECC, which rely on the mathematical problem of factoring large numbers and dealing with discrete logarithms Quantum algorithms such as Shor and Grover can solve solve these problems effectively, so that classical The encryption is simple. This research addresses the urgent need for quantum-resistant cryptographic algorithms to protect next-generation networks, including 5G, IoT, and cloud computing, from future quantum attacks. The main objective of this study is to investigate the efficiency and scalability of quantum post-cryptography techniques, especially lattice-based cryptography, and to evaluate their performance in comparison with traditional cryptography and other post-quantum techniques. It also provides robust protection against quantum attacks and reasonable scalability to large networks, while delivering large key size requirements, low connectivity and excess capacity. The study concludes that lattice-based cryptography is an appropriate solution that balances quantum resistance with practical performance in real-world applications to ensure secure communications in the post-quantum era.
Quantum computing represents one of the most disruptive technological advancements of the 21st century, with profound implications for modern cryptographic systems. Traditional digital signature algorithms—such as RSA, DSA, and Elliptic Curve Cryptography (ECC)—derive their security from mathematical problems like integer factorization and discrete logarithms, which are computationally infeasible for classical computers. However, the advent of quantum algorithms, particularly Shor’s and Grover’s algorithms, poses a direct threat to these cryptographic assumptions by drastically reducing the time required to solve such problems. This development renders existing Digital Signature infrastructures potentially obsolete once large-scale quantum computers become operational. To counter this threat, researchers have proposed a range of post-quantum cryptographic (PQC) algorithms, including lattice-based, hash-based, and multivariate polynomial-based signature schemes, which are designed to resist quantum attacks. This paper critically examines the extent of quantum vulnerability in current Digital Signature systems and evaluates the comparative performance, efficiency, and security trade-offs of post-quantum alternatives. The study aims to provide a structured understanding of the ongoing transition toward quantum-resistant digital authentication and to propose a roadmap for secure implementation in future cryptographic environments.
The potential of the swift development of quantum computing is an extreme danger to the traditional cryptographic programs, and they are the foundation of the modern communication infrastructure. RSA and ECC are classical public-key algorithms that can be successfully quantum-attacked, in particular, Shor's algorithm can easily factor large integers and calculate discrete logarithms (Bernstein et al., 2017). The Post-Quantum Cryptography (PQC) has become the key to secure the next-generation communication networks against these threats, which relies on lattice problem-based algorithms, hash-based based algorithms, multivariate polynomials-based algorithms, and code-based cryptography. The paper examines the concepts, design, and implementation issues of PQC within current network infrastructure focusing on the secure transmission of data, authentication, and key management in the upcoming 5G and 6G networks. The approach will include the survey of existing algorithms of PQC, model the integration of protocol in the communication systems and test computational efficiency, security strength, and scalability. It has been found that PQC is suitable to protect network communications against quantum attackers, and achieves reasonable performance, though trade-offs can be seen in terms of computation overhead, key size, and latency. The research offers understanding to the researcher, network engineers and policy makers in order to adopt quantum resistant cryptography protocols to secure the confidentiality, integrity and authenticity of information in the future communication networks.
Quantum computing has emerged as a disruptive technology with the potential to revolutionize various fields, including information security. Traditional cryptographic protocols, including RSA, ECC, and AES, rely on the difficulty of certain mathematical problems for their security. However, the advent of quantum computing poses a significant threat to these encryption methods, as quantum algorithms such as Shor's and Grover's algorithms can efficiently solve problems that are computationally hard for classical systems. This paper explores the implications of quantum computing on existing cryptographic systems and proposes strategies for future-proofing information security protocols. We examine the vulnerabilities introduced by quantum computing, highlight the role of post-quantum cryptography (PQC), and explore quantum key distribution (QKD) as potential solutions for ensuring the confidentiality, integrity, and authenticity of digital communications. The paper discusses various quantum-resistant algorithms and offers insights into the ongoing efforts by international standardization bodies to prepare for a post-quantum world.