A new research proposal claims that Bitcoin can achieve quantum security without changing the protocol.

MarsBitNews · 2026-04-10T03:19:01+00:00

Avihu Levy of StarkWare proposed a quantum-safe Bitcoin scheme called QSB, aimed at resisting quantum computing attacks without altering the core Bitcoin rules. The scheme replaces the elliptic curve security mechanism, operates within existing script limitations, but extends the standard relay strategy. Transaction costs are estimated to be between $75 and $150, and on-chain demonstration has not yet been completed.

MarsBitNews

2026-04-10 03:19:01

Abstract generation in progress

Mars Finance reports that according to Bitcoin Magazine, StarkWare’s Avihu Levy published a research proposal titled “Quantum-Safe Bitcoin Transactions Without Soft Forks,” proposing a quantum-secure Bitcoin solution called QSB.
The scheme aims to enable Bitcoin transactions to resist quantum computing attacks without altering the core Bitcoin rules.
QSB replaces the elliptic curve security mechanism with a hash-based assumption, shifting security to the resistance of hash preimages, thereby defending against the threat of Shor’s algorithm.
The scheme operates within Bitcoin’s existing scripting limitations, requiring no consensus changes or soft forks.
However, QSB transactions exceed the limits of standard relay strategies and cannot be propagated through the network by default; they need to be directly submitted to miners via services like Slipstream.
The paper estimates that generating valid transactions using cloud GPUs costs approximately $75 to $150.
The complete transaction assembly and broadcasting of this project have not yet been demonstrated on-chain.

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