Bitcoin Braces For Quantum Shock — Inside Two Radical New Rescue Plans
The Bitcoin community is actively developing solutions to counter the future threat of quantum computers capable of breaking its current cryptography (ECDSA/Schnorr). Two primary proposals have emerged.
The first, from Olaoluwa Osuntokun and Tim Ruffing, involves a "Taproot kill-switch" combined with a zk-STARK proof. This method would let users prove ownership of their coins from a vulnerable Taproot address without revealing their private keys, providing an escape hatch if a quantum-defense soft fork disables normal key-based spending.
The second proposal, from Avihu Mordechai Levy, is called Quantum Safe Bitcoin (QSB). It uses Lamport-style one-time signatures and a new RIPEMD-160-based proof-of-work puzzle to make individual transactions quantum-safe today, without any changes to Bitcoin's base protocol. However, it is currently expensive and inefficient, costing hundreds of dollars per transaction.
The debate has shifted from whether quantum is a threat to how to manage the migration. The community is split between solutions that aim to rescue the entire UTXO set and those who believe non-migrated coins should expire to preserve Bitcoin's monetary integrity.
bitcoinist04/10 14:02
