Solana developers outline plan to protect network from quantum threats

Two of the network’s core developer teams, Anza and Jump Crypto’s Firedancer, have landed on the same solution: a new type of digital signature called Falcon.

What to know:

• The Solana Foundation said in a new blog post that its core developer teams have aligned on a potential post-quantum solution, identifying the Falcon signature scheme and already building early implementations.
• While quantum computing threats remain years away, Solana says it has a clear, phased plan to upgrade wallets and maintain performance if the risk becomes real.

The Solana Foundation says it has a plan for dealing with future quantum computing risks, outlining in a new blog post how its developers are already aligned on a potential solution.

The foundation said on Monday two of the network’s core developer teams, Anza and Jump Crypto’s Firedancer, have independently landed on the same solution, a new type of digital signature called Falcon designed to withstand quantum computing, and have already started building early versions of it.

The alignment is notable given Solana’s technical constraints. The network’s high-speed, low-latency design has raised questions about whether more computationally intensive post-quantum cryptography could be adopted without trade-offs. The foundation said, however, that any eventual migration would be manageable and unlikely to significantly impact performance.

The blog post comes as debate intensifies across the crypto industry about whether advances in quantum computing could eventually undermine blockchain security. The Solana Foundation’s position: the risk is real but still distant.

“Quantum is still years away,” the foundation said, adding that migration plans are “well-researched, understood, and ready to deploy.”

Beyond core protocol work, the foundation pointed to existing efforts within the ecosystem, including Blueshift’s “Winternitz Vault,” a quantum-resistant primitive that has been live on Solana for more than two years and was recently cited by Google Quantum AI.

For now, no immediate changes are planned. Solana outlined a phased roadmap that includes continued research into Falcon and alternatives, introducing post-quantum schemes for new wallets if needed, and eventually migrating existing wallets.

Read more: Solana's quantum-threat readiness reveals harsh tradeoff: security vs speed

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