Why is this important
The potential threat of quantum computers calls into question Bitcoin’s core cryptography and the security of users’ funds. Proposed protective measures, such as an “emergency brake,” could not only safeguard the network but also block access to the wallets of millions of users. This creates a risk of a systemic loss of trust in the cryptocurrency. The proposed prototype addresses a key challenge — how to protect the network without losing access to funds.
What happened
- Olaoluwa Osuntokun presented a prototype solution to protect Bitcoin wallets from quantum threats.
- The development proposes an alternative method of verifying wallet ownership without relying on digital signatures.
- This solution is being considered as a complement to the proposed network protection measures, including the BIP-360 upgrade and the “emergency brake” mechanism.
- The prototype is designed to eliminate the risk that users could lose access to their funds if the current signature system is disabled.
Numbers and facts
- The prototype enables verification of wallet ownership through a proof based on a seed phrase, without revealing the phrase itself.
- Generating the proof takes about 55 seconds on a consumer MacBook, while verification takes less than 2 seconds.
- The proof file size is approximately 1.7 MB.
- The BIP-360 upgrade provides for a transition to quantum-resistant wallets but requires time for migration.
- The “emergency brake” involves disabling the current digital signature system across the entire network to protect against attacks.
- Most modern wallets, including Taproot, rely solely on the current signature system.
- The probability of implementing BIP-360 by 2027 on the Polymarket platform is estimated at around 28%.
Context
- For users, this means a potential ability to retain access to their funds even in the event of major changes to the network.
- Разработчики получают дополнительный инструмент, который снижает риски побочных эффектов защитных обновлений.
- For the market, this lowers the likelihood of a scenario in which protection against quantum threats leads to asset lockups.
- Overall, the solution addresses one of the key gaps in Bitcoin’s long-term security strategy.
