Security firm Project Eleven has introduced a post-quantum proof technology designed for a scenario in which quantum computers can derive private keys and produce valid signatures, allowing users to prove ownership of Bitcoin wallets. According to the company, the method uses a wallet’s key derivation path so a user can demonstrate control without revealing the parent key, helping distinguish a legitimate owner from an attacker. Project Eleven CEO Alex Pruden described the approach in those terms. The prototype was developed with Jim Posen, a lead maintainer of the open-source Binius zero-knowledge proof system, and is based on the “signature lifting” technique proposed by Alon Sattath and Robert Wyborski. Project Eleven said the prototype has not been audited and would require blockchain protocol support before deployment. The company added that the design is mainly intended for users who, in the future, may miss a migration to quantum-resistant addresses.
Security firm Project Eleven has introduced a post-quantum proof technology aimed at helping users prove ownership of Bitcoin wallets in a scenario where quantum computers are able to derive private keys and generate valid signatures.
Project Eleven CEO Alex Pruden said the technology uses a wallet’s key derivation path, allowing users to prove control without disclosing the parent key. The goal is to distinguish a legitimate owner from an attacker.
The scheme was developed in collaboration with Jim Posen, a lead maintainer of the open-source Binius zero-knowledge proof system, and is based on the “signature lifting” technique proposed by Alon Sattath and Robert Wyborski.
Project Eleven said the prototype has not been audited. It also said blockchain protocol support would be required before the system could be put into use, and that the design is mainly intended for users who may miss a future migration to quantum-resistant addresses.
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