Weak Quantum Bounty Ceremony

May 30 - Jun 5, 2026

  • The proposal of a "quantum bounty" in Bitcoin introduces a novel approach to testing the security of cryptographic systems against the potential threats posed by quantum computing.

This method involves creating Bitcoin outputs that are secured through a deliberately weakened cryptographic system, specifically using a secp256k1 private key generated with limited entropy. The key generation process is meticulously secure, involving multiple independent participants who each contribute a secret share. These shares form a Bitcoin public key and an encrypted version using a weaker elliptic curve system, without fully reconstructing or disclosing any individual share. The integrity of the system is maintained through Pedersen-style commitments and ElGamal-style encryption, alongside Chaum-Pedersen proofs, which demonstrate the derivation of both the public key and weak-curve ciphertext from the same underlying secret. This setup allows any entity capable of decrypting the secret from the weaker system to claim the Bitcoin, effectively setting a security challenge at the level of the weaker system.

However, there are significant concerns regarding the effectiveness and necessity of implementing such a bounty system within the Bitcoin network, especially if the network remains vulnerable to other potential quantum attacks. Debates have arisen over the actual deterrent value of the bounty if the network isn't post-quantum secure, questioning whether financial incentives would be sufficient motivation for researchers, who typically seek novel results and are supported by existing funding mechanisms. Additionally, the assumption that findings could be published openly may not hold true in all cases, suggesting that alternative methods might exist for labs to demonstrate their capabilities without relying on a bounty system.

Further discussions highlight the use of various elliptic curve cryptography (ECC) keys and their significance in securing Bitcoin transactions. Notable points include the similarities between generators for different ECC curves and the importance of proving that private keys fall within certain ranges, illustrated through specific transaction examples on Mempool. These practical applications underscore ongoing explorations into enhancing cryptographic techniques to withstand potential quantum computing advancements.

Innovative ideas for increasing the security and anonymity of blockchain transactions were also proposed, emphasizing the use of zero-knowledge proofs (ZKPs) that enable transaction verification without exposing real funds. Suggestions included implementing these systems on testnets or signets to reduce risks and maintain the mainnet's integrity. Key attributes for these publishing schemes were discussed, focusing on anonymity, plausible deniability, and uncensorability, crucial for scenarios where a signature from a quantum computer might expose a researcher's identity.

Overall, the discourse surrounding these developments reflects a broader consideration of strategic resource allocation and incentive structures in advancing quantum-resistant technologies within the cryptocurrency space. The exploration of these topics among developers and researchers continues to evolve, highlighting the complexity and multifaceted nature of securing digital assets against emerging technological threats.

Link to Raw Post
Bitcoin Logo

TLDR

Join Our Newsletter

We’ll email you summaries of the latest discussions from high signal bitcoin sources, like bitcoin-dev, lightning-dev, and Delving Bitcoin.

Explore all Products

ChatBTC imageBitcoin searchBitcoin TranscriptsSaving SatoshiDecoding BitcoinWarnet
Built with 🧡 by the Bitcoin Dev Project
View our public visitor count

We'd love to hear your feedback on this project.

Give Feedback