Solana has outlined a plan to transition its network cryptography toward post-quantum algorithms while treating immediate risks as currently remote.

Planned migration and algorithms

Solana says the migration pathway has been designed to minimise disruption and to retain network performance at current throughput levels.

Falcon is a post-quantum signature scheme based on lattice cryptography, considered efficient enough for high-load blockchain use in production environments.

Implementation and upgrades

Developers Anza and Firedancer are evaluating the lattice-based signature algorithm Falcon for high-throughput networks and testing compatibility with transaction systems.

If required, the network can perform a phased rollout that upgrades wallets and consensus nodes to support new signature schemes.

Compatibility testing and staged deployments are intended to validate signature verification logic across clients and validator implementations before broad activation.

Solana indicates wallet updates would be gradual, enabling users and services to adopt changes without forcing an abrupt migration.

Operational impact and outlook

The team states the planned changes are not expected to materially affect throughput, latency, or routine developer operations on the network.

Solana adds that the probability of a near-term quantum attack remains low, while long-term preparedness justifies the engineering work.