QuFi Tests Post-Quantum Bitcoin Security Without Blockchain Changes

QuFi tests post-quantum Bitcoin security.

QuFi Network has launched a post-quantum verification platform designed to protect digital assets from future quantum threats without altering existing settlement networks.

To demonstrate the solution, developers used the Bitcoin Testnet4.

Verification Separate from the Blockchain

QuFi’s key idea is to separate transaction verification from its final execution. The platform uses a network of independent nodes to perform cryptographic verification before funds are moved, then submits a compact proof to the blockchain.

The developers believe this approach will prevent each blockchain from having to handle increased data and computation loads that may arise with the transition to post-quantum cryptography.

The protection employs three standards developed under the U.S. National Institute of Standards and Technology initiative: ML-DSA-65 for digital signatures, SLH-DSA as an additional hashed signature scheme, and ML-KEM-1024 for secure key exchange.

QuFi Tests System on Bitcoin

For a practical demonstration, the company developed uBTC—a proof-of-concept that verifies the presence of BTC as collateral and generates cryptographic proofs for subsequent value transfers.