QuFi's Post-Quantum Verification Platform Protects Digital Assets Against Future Threats

QuFi Network has launched a verification platform designed to protect digital assets from future quantum computing threats. The platform separates verification from settlement, using a decentralized network of nodes to validate transactions with post-quantum cryptography before they are settled on existing blockchain networks.

The platform uses three post-quantum cryptographic standards for digital signatures and secure key exchange: ML-DSA-65, SLH-DSA, and ML-KEM-1024. This approach is intended to avoid the added storage, bandwidth, and computing demands that can come with adopting larger post-quantum signatures directly on individual blockchains.

QuFi also launched uBTC, a proof-of-concept that applies the verification system to Bitcoin (BTC) and is currently operating on Bitcoin Testnet4. The uBTC system verifies BTC collateral and generates cryptographic proofs governing how value moves between settlement environments, while redemptions ultimately settle as standard Bitcoin transactions.

The platform arrives amid a series of recent efforts to prepare blockchain networks for potential quantum computing threats. In August, StarkWare tested a quantum-resistant Bitcoin transaction on mainnet without requiring a fork, but the transaction took hours of computation and cost roughly $150 to $200. Banks and regulators across Europe, the Middle East, and Asia have also joined a pilot testing post-quantum wallets and onchain transfers using ML-DSA-65.

Bitcoin developers are exploring protocol-level defenses, including an experimental post-quantum signature scheme designed to reduce the size and performance costs associated with quantum-resistant signatures. However, this approach comes with trade-offs, requiring wallets to track previously used signing keys and adding complexity and potential user failure modes.