The recent development in Quantum Computing is creating a potential threat to many Digital Banking Systems currently being used today. Most banking systems today use Classical Public Key Cryptography technologies like RSA and Elliptical Curve Cryptography that will be broken by a very powerful, large-scale Quantum Computer. Because financial data typically has to be kept private for an extended time period, this problem creates a major long-term risk. This research proposes a Hybrid Post-Quantum Public Key Infrastructure (PKI) Framework for the improvement of banking security while maintaining compatibility with the existing banking systems. Rather than immediately replacing all classical cryptographic mechanisms, the Hybrid Post-Quantum Solution utilizes a combination of post-quantum algorithms along with traditional techniques. The proposed Hybrid Post-Quantum PKI model provides a reasonable and scalable path for banks to transition their systems from current quantum-vulnerable security infrastructures to new quantum-resilient security infrastructures.
The recent development in Quantum Computing is creating a potential threat to many Digital Banking Systems currently being used today. Most banking systems today use Classical Public Key Cryptography technologies like RSA and Elliptical Curve Cryptography that will be broken by a very powerful, large-scale Quantum Computer. Because financial data typically has to be kept private for an extended time period, this problem creates a major long-term risk. This research proposes a Hybrid Post-Quantum Public Key Infrastructure (PKI) Framework for the improvement of banking security while maintaining compatibility with the existing banking systems. Rather than immediately replacing all classical cryptographic mechanisms, the Hybrid Post-Quantum Solution utilizes a combination of post-quantum algorithms along with traditional techniques. The proposed Hybrid Post-Quantum PKI model provides a reasonable and scalable path for banks to transition their systems from current quantum-vulnerable security infrastructures to new quantum-resilient security infrastructures.
Development of Quantum Computers are growing rapidly, the security of today’s cryptographic systems which are working with Public Key Infrastructure (PKI) is at serious risk. RSA and ECC algorithms are the backbone of secure communication and digital identity can be breakable by quantum algorithms such as Shor’s. Hence, a transition is required to Post-Quantum Cryptography (PQC), which is designed to handle quantum attacks. This work provides a detailed review of how PQC can be integrated with the existing PKI, with a special focus on the auto-enrollment process. Auto-enrollment is an essential process but often overlooked mechanism, responsible for automatically issuing and renewing digital certificates. First, we explored how current PKI systems are exposed to the quantum threats and the readiness. The performance of the algorithms that are standardized by NIST, such as Kyber and Dilithium were discussed. We analyze the technical and operational challenges of transitioning to PQC by referencing both research studies and real-world implementations from major industry players such as Google and Microsoft. These include large key size, certificate size, compatibility issues, complex computations and need for crypto-agility. We also examine the hybrid approaches that combine classical and post-quantum methods as traditional strategies. The survey concludes by outlining best practices, deployment considerations, and open research challenges that must be addressed for a smooth, secure, and scalable shift to quantum-safe PKI. This work aims to guide researchers, engineers, and policymakers in building the next generation of cryptographic infrastructure that can stand the test-time even in a quantum world.
Many traditional encryption techniques commonly used in financial systems face serious threats from the rapid development of quantum computing. Quantum attacks based on Shor's and Grover's algorithm are effective against the RSA, and ECC methods that secure online banking, digital payments, and interbank communications. To mitigate on this increasing risk, this paper suggests hybrid cryptographic architecture based on symmetric encryption, post-quantum cryptography (PQC), and quantum key distribution (QKD) for secure financial transactions. The Quantum-resistant security significance comes because the financial models produce massive data sets for fraud detection and predictive risk. Not only does it offer the previously unreachable computational capabilities, but also utilizes the potentials of large-scale financial data analytics to make the decision-making process fast and well informed, and in this light, the present research recommends a hybrid cryptographic approach with an integrated security framework for the financial sector that combines symmetric encryption, post-quantum cryptography (PQC), and quantum key distribution (QKD). The proposed structure relies on (1) the quantum-resistance of PQC for resilience and authentication, (2) the information-theoretic security of QKD for key establishment, and (3) the efficacy of symmetric cryptography for protecting high-throughput transactions. The framework covers the short-term practical limitations and long-term quantum risks based on the combined use of quantum and conventional security primitives. This paper points out the role and transformation of digital financial ecosystem in the quantum era by elaborating challenges, opportunities and future of quantum cryptography in the banking industry.
In the last few years the threat of quantum computers has become bigger and bigger. The fast computing of the quantum computers puts everything in danger that relies on classical cryptographic algorithms. The question of when a large-scale quantum computer will be built cannot be exactly answered yet. According to the Cloud Security Alliance at around 2030 the power of quantum computers will increase so that the risk for exposure of traditionally encrypted data will be very high. PKI (Public Key Infrastructure) relies on asymmetric cryptographic algorithms and is widely used in many fields. So it is important that it will be completely safe. The way to provide that is to change traditional cryptographic algorithms to post-quantum cryptography algorithms or hybrid solutions. To this, we review in this paper the basics of classical PKI and quantum cryptography methods and the threat of quantum computing for PKI. We present quantum-safe solutions already in use and recommend new, well-performing solutions for a quantum-resistant PKI by comparison.
The rapid advancement of quantum computing introduces unprecedented security threats to modern cloud and edge computing infrastructures. Classical public-key cryptographic algorithms such as RSA, Diffie–Hellman, and Elliptic Curve Cryptography (ECC) are fundamentally vulnerable to quantum attacks enabled by Shor’s algorithm. As a result, the confidentiality, integrity, and authenticity of data stored and processed in distributed systems are at serious risk.Post-quantum cryptography (PQC) aims to develop cryptographic algorithms that are resistant to both classical and quantum adversaries. This paper presents a comprehensive quantum-resilient cryptographic framework designed specifically for post-quantum cloud and edge computing environments. The framework integrates post-quantum cryptographic primitives, hybrid cryptographic approaches, crypto-agile architectures, and secure key management mechanisms. The proposed framework addresses performance constraints, scalability requirements, and deployment challenges in heterogeneous environments. A detailed discussion of security threats, architectural components, performance considerations, and future research directions is provided. The proposed approach enables longterm security and supports a smooth transition toward quantum-safe distributed computing systems.
The emergence of quantum computing presents significant challenges to existing Identity and Access Management (IAM) systems, particularly concerning the security of current cryptographic algorithms. As quantum computers evolve, traditional public-key cryptography methods like RSA and ECC face increasing vulnerability, necessitating a transition to quantum-resistant alternatives. This document explores the critical intersection of post-quantum cryptography and IAM, examining the transformation required in security frameworks to maintain resilience in a quantum-enabled future. The discussion encompasses the evolution of quantum threats to current IAM implementations, the development of post-quantum cryptographic solutions, the essential transformation of IAM infrastructure, and the integration of advanced technologies, including artificial intelligence and quantum-safe authentication mechanisms. Special attention is given to practical implementation considerations, including hybrid authentication models and the modernization of Public Key Infrastructure (PKI) systems to ensure continued security in the post-quantum era.
The emergence of quantum computing introduces unprecedented risks to classical cryptographic schemes, particularly digital signatures that safeguard authentication, confidentiality, and data integrity across digital ecosystems. To address these concerns, this paper investigates the adoption of Post-Quantum Cryptography (PQC) within Public Key Infrastructure (PKI) frameworks, emphasizing its role in strengthening electronic signature (eSign) systems against quantum threats. Traditional PKI implementations rely on algorithms such as RSA and ECC in combination with Hardware Security Modules (HSMs) for secure key management; however, these methods are vulnerable to quantum algorithms like Shor's. We examine how quantum-resistant alternatives-including lattice-based, hash-based, and multivariate polynomial-based schemes standardized by NIST-can be integrated into PKI without compromising interoperability and compliance. A comparative evaluation highlights trade-offs in performance, storage, and computational complexity while demonstrating the feasibility of embedding PQC into existing eSign infrastructures. Our findings underscore the urgency of transitioning towards quantum-safe digital signatures to ensure resilience, regulatory alignment, and long-term trust in national-scale digital services.