Blockchain: Post-Quantum Security & Legal Economics

Brian Seamus Haney, Blockchain: Post-Quantum Security & Legal Economics, 24 N.C. Banking Inst. 117 (2020).

45 Pages Posted: 7 Sep 2019 Last revised: 19 Apr 2022

Date Written: August 28, 2019


Blockchain technology is subject to security vulnerabilities resulting from recent developments in quantum computing and cryptography. All the while, the technical complexities of blockchain’s peer-to-peer system require the intervention of third-party intermediaries to facilitate financial transactions across blockchain networks. Current legal scholarship describes blockchain technology as a peer-to-peer system without a central authority, supporting the secure decentralization of economies and financial markets. Yet, with consideration to recent advancements in quantum computing, blockchain technology is not secure. Further, the technology’s legality is subject to the will of the central authorities whose economic systems it seeks to decentralize.

This article contributes the first post-quantum analysis of the intersection of blockchain security and law. Additionally, this is the first piece of legal scholarship to analyze the complex relationships between Congress, the Federal Reserve, and blockchain technology in the creation of money. In doing so, this article challenges conventional assumptions relating to blockchain technology’s decentralizing economic impact. Ultimately, this article takes an interdisciplinary approach, drawing on informatics, law, and economics scholarship, to argue blockchain fails to provide a legal or secure means of establishing a peer-to-peer payment system.

Keywords: Blockchain, Quantum Computing, Quantum Cryptography, Law and Economics, Cryptocurrency, Constitution

JEL Classification: H10, H30, G18, G28, G00, E40, E50, P16, O40, O30, K20, K22, C00, C02, C10

Suggested Citation

Haney, Brian, Blockchain: Post-Quantum Security & Legal Economics (August 28, 2019). Brian Seamus Haney, Blockchain: Post-Quantum Security & Legal Economics, 24 N.C. Banking Inst. 117 (2020)., Available at SSRN: or

Brian Haney (Contact Author)

Independent ( email )

No Address Available
United States

Do you have a job opening that you would like to promote on SSRN?

Paper statistics

Abstract Views
PlumX Metrics