Deep Impact on the Digital Finance in the era of Post-Quantum Cryptography

Hamsini Mopuru

Rahul Bhatia

Quantum computing presents both transformative potential and unprecedented risk. Financial systems, which rely on RSA, ECC, and other public-key cryptography, are especially vulnerable to quantum-enabled attacks. For the United States—where the IRS, Treasury, Federal Reserve, Medicare, and unemployment programs collectively manage trillions of dollars annually—the implications are profound. This paper argues that finance must be treated as critical national infrastructure and proactively secured against the quantum threat. Post-Quantum Cryptography (PQC), as being standardized by NIST, offers the technical foundation for resilience. However, successful adoption requires more than technical substitution—it demands an architecture-led redesign. Drawing on the Finance Architecture Strategy Technology (FAST™) framework, which embeds compliance and fraud prevention into design, and the Digital Finance Reference Architecture (DFRA™), a modular blueprint for cloud-native, scalable transformation, we propose a roadmap for embedding PQC into digital finance. This includes PQC integration within cloud ERP platforms such as SAP S/4HANA, hybrid cryptography strategies during transition, and governance models that align with OMB A-123 and DHS critical infrastructure protection. By combining PQC with structured frameworks, the U.S. can safeguard financial flows against future quantum adversaries, protect public trust, and reinforce its leadership in global digital governance. This work positions digital finance architecture as both an economic enabler and a national security priority, demonstrating how U.S. financial systems can be future-proofed for the quantum era.

Kwame Boateng, Isabella Moretti

As the digital era advances, secure communication becomes increasingly critical in safeguarding sensitive information from cyber threats. With the advent of quantum computing, traditional cryptographic systems, which rely on the computational difficulty of certain mathematical problems, are at risk of being compromised. This article explores the emerging field of post-quantum cryptography (PQC) and its pivotal role in advancing secure communications in the age of quantum computing. PQC aims to develop cryptographic algorithms that are resistant to the capabilities of quantum computers, ensuring the confidentiality and integrity of digital communications. We examine the theoretical foundations of PQC, the various cryptographic algorithms being explored, and their practical implications for industries ranging from finance and healthcare to national security. The article also discusses the challenges and opportunities in transitioning from classical cryptographic systems to post-quantum solutions, including issues related to standardization, implementation, and scalability. As quantum computing continues to evolve, the integration of PQC represents a critical step in fortifying the security infrastructure of the future, safeguarding global digital communications from the threats posed by quantum-enabled adversaries.

Raymond Lee

Abdullah Saad Alessa, Mohammad Ali A. Hammoudeh, Harbaksh Singh

Businesses are using post-quantum cryptography (PQC) technologies to safeguard digital data from the increasing computational capabilities of quantum machines. The rise of quantum-safe hybrid ecosystems is a notable shift in cryptographic methodology, merging the security benefits of quantum-resistant algorithms with conventional cryptographic approaches. Quantum computers will possess exceptional ability in handling complex simulations and optimization tasks by the year 2030. Industries such as finance, cybersecurity, pharmaceuticals, and logistics are incorporating quantum computing into their operations. They are utilizing quantum algorithms to do complex risk assessments and facilitate data transmission. The integration of artificial intelligence (AI) and PQC is anticipated to significantly enhance the security and effectiveness of cryptographic systems. Adopting PQC into space communications is essential for ensuring global security and compatibility. Establishing common standards is vital to protect against potential threats and maintain worldwide security. Global collaboration is essential to create policies and ethical principles for PQC adoption and utilization. The ability of quantum computers to decipher encrypted communications raises privacy concerns. By 2030, quantum technologies are expected to make a deep impact on society and culture, leading to the development of a new cultural awareness and preparing humanity for the upcoming quantum revolution.

Orson Mengara