Bitcoin Could Be Quantum-Safe Without Protocol Changes, New Proposal Claims
Bitcoin Magazine
A new proposal by Avihu Levy suggests making Bitcoin quantum-resistant through hash-based proofs without requiring protocol consensus changes.Summary
Avihu Levy of StarkWare has introduced a research proposal titled "Quantum-Safe Bitcoin Transactions Without Softforks." The design, called Quantum Safe Bitcoin (QSB), aims to protect the network from quantum computing threats by replacing dependence on elliptic curve cryptography with hash-based security assumptions. By utilizing a "hash-to-signature" puzzle that functions within existing Bitcoin scripting limits, the method avoids the need for soft forks or consensus upgrades. While the proposal offers a viable path toward quantum resistance, it currently faces practical challenges, including high computational costs and the necessity of direct submission to miners due to transaction size constraints.
(Source：Bitcoin Magazine)