#### Post Quantum Migration and Legacy Signature Sunset ![image.png](https://files.peakd.com/file/peakd-hive/darkflame/23tbEt74PR8qo3cAcAdpKfhMHjYow1SPqRhpYnYPhUQvgSdCWUVBi6bFXS8GkBgFassNz.png) "Abstract: This proposal follows the implementation of any post-quantum (PQ) output type and introduces a pre-announced sunset of legacy ECDSA/Schnorr signatures. It turns quantum security into a private incentive: fail to upgrade and you will encounter additional friction to access your funds, creating a certainty where none previously existed. Phase A: Disallows sending of any funds to quantum-vulnerable addresses, hastening the adoption of PQ address types. Phase B: Renders ECDSA/Schnorr spends invalid, preventing all spending of funds in quantum-vulnerable UTXOs. This is triggered by a well-publicized flag-day five years after activation. Phase C (TBD): Pending further research, a separate BIP proposing a method to allow quantum safe recovery of legacy UTXOs, likely via zero knowledge proof of possession of a corresponding BIP-39 seed phrase." https://www.bip361.org/ ------------ "March 20, 2023/News Releases: Cleveland Clinic and IBM Unveil First Quantum Computer Dedicated to Healthcare Research ![image.png](https://files.peakd.com/file/peakd-hive/darkflame/23xVPJGh5r7NgrNUFgncoqhTBt6SS89nqcW2mzuzXMo9zMArmWzQP2bkZG14nRhKvmEqN.png) IBM Quantum System One deployed at Cleveland Clinic as part of landmark 10-year partnership" https://newsroom.clevelandclinic.org/2023/03/20/cleveland-clinic-and-ibm-unveil-first-quantum-computer-dedicated-to-healthcare-research ----- > ##### "academic road-maps now estimate a cryptographically-relevant quantum computer as early as 2027–2030, per McKinsey." > "Rationale: Even if Bitcoin is not a primary initial target of a cryptographically relevant quantum computer, widespread knowledge that such a computer exists and is capable of breaking Bitcoin's cryptography will damage faith in the network." (See More) ------ ![image.png](https://files.peakd.com/file/peakd-hive/darkflame/23t8AaHvB4jSyxB2Lu54AvkKicZTDAxVGzyEJHPpQMJDEGUqFLQQLH7iELPXfgiDgHXkK.png) https://www.bip361.org/ ----- This morning I caught Charles Hoskinson of Cardano (ADA) live discussing this. https://www.youtube.com/watch?v=GFXdLqpWB20 If you know anything more about this potential Soft Fork, or how Bitcoin / Altcoin users can prepare for Quantum Risks, please comment below!

LeoFinance

@flodner

Cardano Decentralised Deputy Diary. Text 18

@darkflame

BIP 361 Quantum Soft Fork of BTC