Quantum-Resilient Banking: Strategies for a Secure Transition

Tahereh Rezaei, Abhijit Rao, Jeff Stapleton +1 more

As the quantum computing threat to traditional cryptographic systems grows increasingly tangible, financial institutions face the urgent need to adopt quantum-resistant security architectures and scalable QKD management system. The main driver is the need to be quantum resilient. To address quantum resiliency needs, we seek to address scalability issues within a layered vendor-agnostic architecture for a quantum-safe datacenter strategy. This paper presents two case studies conducted at Wells Fargo evaluating hardware-based Quantum Key Distribution (QKD) using Toshiba device and software-based Digital QKD (dQKD) implemented by Qrypt. Both experiments demonstrate adherence to ETSI QKD-014 standards. The study explores the operational feasibility, integration complexity, performance characteristics, and security posture of each approach and how a combination of such systems can provide quantum resiliency is proposed in this paper. The purpose is not to compare but to demonstrate how QKD and dQKD together, contribute to quantum resiliency’ needs of the bank. By examining the two systems with distinct foundations and maturity level, the paper offers insights into the implications of these technologies in real-world banking environments.

Cristina Andriani, Lorenzo Bencivelli, Antonio Castellucci +3 more

K. Pradheep Kumar

Rohit Kumar, Bindu Garg, Bishun Dev Mehta +1 more

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.

Francesco Pierangeli

Alex Khang, Gobinath Arumugam, P. Rajeswari +2 more

The rise of quantum computing presents a profound shift in the cybersecurity landscape, particularly for the banking and finance sectors, where the protection of sensitive data is paramount. Traditional encryption methods are increasingly at risk of being compromised by the computational power of quantum machines, demanding the adoption of quantum-resistant technologies. This discussion delves into quantum key distribution (QKD) and post-quantum cryptographic algorithms, exploring their potential to secure financial transactions, protect customer information, and reinforce the integrity of banking networks. The application of these technologies offers new avenues for safeguarding data against quantum attacks while also addressing the challenges associated with integrating quantum security into existing infrastructures. The exploration also highlights the risks posed by quantum computers to current cryptographic systems and provides guidance on how financial institutions can transition to quantum-secure frameworks. By embracing these innovations, the banking and finance sectors can build resilience against future cyber threats in an era of quantum computing.