Tron to Adopt NIST Post-Quantum Signatures on Mainnet

Tron founder Justin Sun announced on X that the network will adopt NIST-backed post-quantum digital signature standards — ML-DSA, FN-DSA and SLH-DSA — on its mainnet and will publish a technical roadmap for the upgrade.

The standards named by Sun were finalized by the U.S. National Institute of Standards and Technology in August 2024. They are designed to provide signatures that remain secure against sufficiently powerful quantum computers, which could undermine current elliptic curve-based signatures used across many blockchains.

Sun contrasted Tron’s approach with ongoing industry debates, writing, “While Bitcoin debates whether to freeze vulnerable coins and Ethereum forms research committees, Tron is building.”

Tron’s planned upgrade would replace or supplement the elliptic curve digital signature algorithm, ECDSA. Post-quantum signatures are substantially larger than ECDSA signatures; industry estimates put them at roughly ten times the size. Larger signatures can increase transaction size, reduce throughput, and raise block storage and node bandwidth requirements on high-volume networks.

Tron processes large volumes of stablecoin transfers, including tether (USDT). Changes to signature formats could affect transaction capacity and costs for users and service providers if not managed in the protocol design and rollout.

Tron DAO has not released a formal governance proposal, technical documentation, a timeline or a migration plan. Observers and some users have raised questions about how the network will migrate existing addresses tied to legacy private keys without risking user funds or disrupting services. Debate in other blockchain communities over options such as freezing vulnerable coins has highlighted the trade-offs involved in addressing legacy-key risk.

Market response was mixed. TRX traded in roughly a $0.32 to $0.34 range after the announcement. Some traders viewed the initiative as forward-looking, while others flagged the lack of specifics and the potential for disruption. Outside experts have been asked whether Tron consulted post-quantum cryptography specialists and which approved algorithms it will assign to different use cases on the chain.

NIST’s post-quantum cryptography process produced several standards after public review and competition in 2024. The approved algorithms aim to protect signatures and encryption against quantum attacks that exploit methods such as Shor’s algorithm. Major blockchains are conducting research and forming advisory groups to study migration strategies; Tron’s announcement indicates it plans to proceed toward implementation more quickly than some peers.

For now, the public statement is a declaration of intent. The industry will look for a detailed technical roadmap and formal proposals from Tron DAO to learn how the network plans to handle signature size increases, key migration, effects on throughput and storage, and the sequencing of any mainnet changes.