Blockchain Security in the Post-Quantum Era
Iraq Ahmad Reshi
The quantum computer is a threat to the cryptography on which the currently implemented blockchains rely. Authors thoroughly investigate the impact of quantum adversaries on the security of blockchain technology in this chapter. Begining by scrutinizing the threat model for a quantum computer, concentrating on the threat posed by quantum adversaries on public key cryptography, digital signatures, and proof-of-work assumptions. This chapter examines various forms of cryptography after quantum computing, such as lattice-based cryptography, hash-based signatures, code-based cryptography, multivariate cryptography, and isogeny-based cryptography, highlighting their applications for blockchain technology. Authors also investigate how quantum computer cryptography can be applied in digital wallets, transactions, consensus algorithms, and smart contracts. Finally, this chapter provides case studies on real-life applications for a quantum compute-r resilient blockchain technology implementation.
CRC Press eBooks•Oct 15, 2026•0 citations