Solana Selects Falcon for Post-Quantum Security

The Solana Foundation announced Thursday that its core developer teams have selected Falcon, a post-quantum digital signature scheme, to safeguard the network against future quantum computing threats. Anza and Jump Crypto's Firedancer teams independently reached this conclusion after technical reviews, and both have begun building and testing early Falcon implementations.

The foundation emphasized that large-scale quantum risks remain years away, with no immediate protocol changes planned. Developers chose Falcon for its compact signatures, which align with Solana's high-throughput design that processes thousands of transactions per second. Initial versions are already available in public GitHub repositories from Anza and Firedancer, which together represent a significant portion of validator client development and network stake.

Solana outlined a phased migration roadmap to introduce post-quantum protections if threats materialize. The plan starts with ongoing research into Falcon and alternatives, followed by adopting the scheme for newly created wallets. Existing wallets would then migrate through coordinated updates, a process the foundation described as manageable without...