Key facts
- Researchers at AmericanFortress have proposed ZKPoSP, a post-quantum signature scheme for hierarchical deterministic crypto wallets.
- The system replaces traditional elliptic curve signatures with zero-knowledge proofs.
- It aims to protect existing wallet addresses and seed phrases from quantum computer attacks.
- A prototype implementation showed proof generation times of approximately 12-13 seconds.
- The research has not yet been adopted by any blockchain network.
Researchers at AmericanFortress have introduced a new cryptographic system, ZKPoSP (Zero-Knowledge Proof of Seed Provenance), designed to protect Bitcoin and other blockchain wallets from potential future attacks by quantum computers. The proposed system replaces traditional elliptic curve digital signatures with zero-knowledge proofs, aiming to secure wallets without requiring users to migrate their funds to new addresses. This approach addresses the threat posed by Shor's algorithm, which could compromise current cryptographic standards used by Bitcoin once fault-tolerant quantum computers become available. The ZKPoSP system focuses on verifying ownership of a wallet's seed phrase, allowing legitimate owners to prove control even if individual private keys are compromised. The research also includes QBIP32, a key derivation scheme compatible with existing hierarchical deterministic wallets. A prototype demonstrated proof generation times of around 12-13 seconds and verification times of 9-10 milliseconds. While this research is a step towards quantum-resistant blockchain security, it has not yet been adopted by any network and would require widespread support from developers, wallet providers, exchanges, and users. The crypto industry is actively exploring post-quantum solutions, with other initiatives like Project Eleven and BTQ Technologies also working on quantum-resistant mechanisms. Recent estimates suggest a significant portion of Bitcoin supply already has publicly exposed keys, highlighting the urgency of developing such defenses. Major companies and research groups, including the newly formed Bitcoin Security Consortium, are investing in this area.