--- title: >- Quantum-proof blockchain: Classic math already provides the tools, says MIT professor url: >- https://www.cryptocatalyst.news/articles/2026-09-13-quantum-proof-blockchain-classic-math-already-provides-the-tools-says-mit-profes canonical: >- https://www.cryptocatalyst.news/articles/2026-09-13-quantum-proof-blockchain-classic-math-already-provides-the-tools-says-mit-profes date: '2026-09-13T18:31:48.573358+00:00' category: general tags: - quantum - blockchain - cryptography - security - math - technology source: CoinDesk source_url: >- https://www.coindesk.com/opinion/2026/09/13/quantum-proof-blockchain-why-math-not-machines-holds-the-key publisher: CryptoCatalyst summary: >- MIT professor Muriel Médard argues classic math can make blockchains quantum-safe without needing new machines. Here's how. image: >- https://www.cryptocatalyst.news/images/articles/2026-09-13-quantum-proof-blockchain-classic-math-already-provides-the-tools-says-mit-profes.webp generated_by: automated editorial pipeline --- # Quantum-proof blockchain: Classic math already provides the tools, says MIT professor MIT professor Muriel Médard contends that existing mathematical tools, not quantum computers, are the key to making blockchains quantum-safe. She believes classic cryptography can be adapted to protect digital assets from future threats. This approach could save the industry billions in potential losses. ## Key takeaways - MIT professor Muriel Médard argues classic math can make blockchains quantum-safe. - Lattice-based and hash-based cryptography are key to quantum-resistant blockchains. - Adopting quantum-safe methods could prevent billions in potential losses for the crypto industry. - Recent initiatives like the $15M pledge to quantum-proof Bitcoin align with Médard's approach. - Developers and investors should focus on integrating and supporting quantum-safe solutions. MIT professor and Optimum co-founder Muriel Médard argues that classic math, not quantum computers, holds the key to making blockchains quantum-safe. In a recent opinion piece, she contends that existing mathematical tools can be adapted to protect digital assets from future quantum threats. This approach could save the industry billions in potential losses. ## Why quantum safety matters for blockchains Quantum computers pose a significant threat to current blockchain security. These machines could potentially break the cryptographic algorithms that secure transactions and digital assets. Médard emphasizes that the focus should be on adapting existing mathematical frameworks rather than waiting for quantum computers to evolve. She believes that classic cryptography, when properly enhanced, can provide robust protection against quantum threats. ## How classic math can be adapted Médard suggests that lattice-based cryptography and hash-based signatures are promising avenues. These methods leverage complex mathematical structures that are resistant to quantum attacks. By integrating these techniques into blockchain protocols, the industry can achieve quantum-safe security without relying on unproven quantum technologies. ## What this means for the future of blockchain Adopting quantum-safe cryptographic methods could prevent massive financial losses and ensure the long-term viability of blockchain technology. Médard's approach aligns with recent industry efforts, such as the [BlackRock, Coinbase and Strategy Pledge $15M to Quantum-Proof Bitcoin](/articles/2026-07-23-blackrock-coinbase-lead-15m-push-to-quantum-proof-bitcoin) initiative, which aims to fortify Bitcoin against quantum threats. This shift could also drive innovation in cryptographic research and development, making blockchains more secure and resilient. ## Practical steps for developers and investors For developers, the immediate step is to explore and integrate lattice-based and hash-based cryptographic methods into their blockchain projects. Investors should keep an eye on companies and initiatives that are actively working on quantum-safe solutions. By staying informed and supportive, the crypto community can collectively ensure the security and longevity of digital assets. Médard's insights highlight the importance of proactive measures in the face of evolving technological threats. As the blockchain industry continues to grow, adapting to quantum risks will be crucial for maintaining trust and security in digital transactions. ## FAQ ### What is quantum-safe cryptography? Quantum-safe cryptography refers to cryptographic methods that are resistant to attacks from quantum computers. These methods use complex mathematical structures that are difficult for quantum machines to break. ### Why is quantum safety important for blockchains? Quantum computers could potentially break the cryptographic algorithms that secure blockchain transactions, leading to massive financial losses and security breaches. Ensuring quantum safety is crucial for the long-term viability of blockchain technology. ### What are lattice-based and hash-based cryptography? Lattice-based cryptography uses mathematical structures called lattices to create secure encryption methods. Hash-based signatures rely on cryptographic hash functions to ensure the integrity and authenticity of digital signatures. ### How can developers and investors contribute to quantum-safe blockchains? Developers can integrate lattice-based and hash-based cryptographic methods into their projects. Investors should support companies and initiatives that are actively working on quantum-safe solutions to ensure the security of digital assets. ## Source This article is a summary of reporting by [CoinDesk](https://www.coindesk.com/opinion/2026/09/13/quantum-proof-blockchain-why-math-not-machines-holds-the-key), written by an automated editorial pipeline. See https://www.cryptocatalyst.news/editorial-policy. ## How to cite CryptoCatalyst.news, "Quantum-proof blockchain: Classic math already provides the tools, says MIT professor", 2026-09-13, https://www.cryptocatalyst.news/articles/2026-09-13-quantum-proof-blockchain-classic-math-already-provides-the-tools-says-mit-profes