Good News! Bitcoin Potentially Safe from Quantum Computers Without Changing Protokol

Bitcoin’s price surged to $73,000 after the publication of research on Quantum Safe Bitcoin (QSB). The proposal put forward by Avihu Levy, Chief Product Officer (CPO) of StarkWare, claims it can make Bitcoin transactions secure from quantum computer threats without requiring changes to Protokol or a soft fork on the network.
​The QSB innovation operates entirely within the current Bitcoin consensus rule limits, especially within the legacy script (legacy script). The main problem it aims to solve is the vulnerability of standard ECDSA signatures to Shor’s Algorithm run on large-scale quantum computers. Through QSB, Levy introduces a “hash-to-signature puzzle” approach that relies on the resistance of the RIPEMD-160 hash function, instead of elliptic curves that could theoretically be broken by future quantum technology.
​Although promising, this method has its own operational challenges. To build a single QSB transaction, GPU computational costs of approximately $75 up to $150 are required. In addition, because of the large script size, these transactions will likely need to be sent directly to miners (miners), since they will exceed the standard relay policy limits on most Bitcoin nodes.
​As of now, the project is still experimental, and no QSB transactions have been successfully transmitted on-chain.

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