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- Justin Sun says TRON is prepared to deploy post-quantum cryptography on mainnet.
- Falcon-512 signatures have been active on the Nile testnet since July.
- Wallet migration, security audits and governance remain central to deployment.
TRON founder Justin Sun says the blockchain is prepared to introduce quantum-resistant cryptography on mainnet, following the successful activation of post-quantum signatures on its Nile testnet.
In an October 10 statement, Sun said TRON was closely monitoring advances in quantum computing and artificial intelligence, adding that the network could introduce quantum-resistant security to mainnet at any time.
TRON’s post-quantum cryptography is now live on testnet. We’re closely tracking progress in quantum computing and AI, and we’re ready to bring quantum resistance to mainnet at any time.
We’re committed to keeping user assets secure, and TRON is set to be one of the few major blockchains that is quantum-resistant before Q-Day. $TRX
— H.E. Justin Sun 👨🚀 🌞 (@justinsuntron) October 10, 2026
He also suggested TRON could become one of the few major blockchains protected against quantum attacks before Q-Day, the hypothetical point when sufficiently advanced quantum computers could compromise widely used cryptographic systems.
However, TRON’s public technical documentation identifies additional steps before production deployment, including independent security reviews, governance approval and compatibility work.
TRON’s Post-Quantum Upgrade Has Been Running Since July
The technical milestone predates Sun’s latest announcement.
According to TRON’s Nile testnet governance records, Proposal No. 20628 activated Falcon-512 post-quantum signatures on July 2, 2026.
The implementation follows TRON Improvement Proposal 899 (TIP-899), which introduces new signature algorithms intended to protect transactions against future quantum attacks.
TRON currently relies on the Elliptic Curve Digital Signature Algorithm (ECDSA), a cryptographic system also used across other major blockchain networks.
Although ECDSA remains secure against known practical attacks using conventional computers, sufficiently powerful quantum computers could theoretically compromise its underlying mathematical assumptions.
TIP-899 introduces two alternatives:
- Falcon-512 (FN-DSA-512): A lattice-based signature scheme designed to provide relatively compact post-quantum signatures. Its NIST standard, FIPS 206, remains under development.
- ML-DSA-44 (Dilithium-2): A lattice-based algorithm standardized by the US National Institute of Standards and Technology under FIPS 204.
The proposed implementation allows conventional and post-quantum signatures to coexist, supporting a gradual transition rather than requiring every account to migrate simultaneously.
Stronger Cryptography Could Reduce Transaction Throughput
Post-quantum protection introduces larger public keys and signatures, increasing the data required to process transactions.
TRON’s technical proposal specifies the following sizes:
These differences have implications for network capacity.
During TRON Core Developers Meeting 66, developers discussed testing estimates of approximately 400 transactions per second using Falcon-512 and 173 transactions per second using ML-DSA-44.
The figures reflect specific testing assumptions, not confirmed mainnet capacity following an upgrade.
They nevertheless illustrate the challenge of introducing larger signatures to a blockchain used extensively for stablecoin transfers.
Developers have proposed separating public-key storage from transaction data to reduce the additional processing burden.
That optimization remains outside the initial implementation.
Mainnet Deployment Depends on Security and Governance
Sun’s readiness statement does not establish a mainnet activation date.
TIP-899 remains a draft proposal, with several implementation requirements identified in its documentation:
- Security audits: Independent reviews of signature verification, cryptographic implementation and related protocol changes.
- Governance approval: Activation through TRON’s on-chain governance process, including algorithm-specific proposals.
- Infrastructure compatibility: Updates to wallets, software development kits and services that currently rely on conventional cryptographic keys.
The proposal also calls for an audit summary before governance voting and appropriate bug-bounty coverage.
These requirements extend beyond ordinary wallet transactions.
Post-quantum signatures can affect block production, node communication and verification within the TRON Virtual Machine.
Introducing new cryptography without adequate testing could create operational or consensus risks, making the transition process as important as the algorithms themselves.
What Changes for TRX and USDT Holders?
For now, the testnet development does not require TRON users to move their funds or replace their wallets.
Existing TRX and TRC-20 token balances remain on the current mainnet infrastructure.
TIP-899 outlines two potential migration approaches once post-quantum support becomes available in production.
Users could update an existing account’s authorization permissions to use a post-quantum key while retaining the same address.
Alternatively, they could create a new post-quantum account and transfer assets to it.
The first option could reduce disruption for applications and users who depend on established wallet addresses.
However, wallet providers would still need to implement compatible key-generation, signing and recovery procedures.
Developers have identified hierarchical key derivation, commonly associated with recovery-phrase-based wallets, as an area requiring additional work.
Protocol-level support also would not automatically make every connected wallet, application or smart contract quantum-resistant.
The protection available to individual users would depend on the keys and software they actually use.
Quantum Security Becomes a Longer-Term Blockchain Priority
TRON’s initiative comes as other blockchain ecosystems examine how to prepare for future quantum computing capabilities.
Ethereum developers are researching post-quantum account signatures and broader protocol changes, while Bitcoin researchers are considering migration strategies for existing cryptographic keys.
The difficulty lies in introducing new security standards without disrupting established networks or compromising access to existing assets.
There is no confirmed date for Q-Day, and current quantum computers have not demonstrated the ability to compromise the cryptography securing major public blockchains at the scale required for practical attacks.
However, large-scale migration could take years because exchanges, wallet providers, infrastructure operators and users would need to adopt compatible systems.
TRON’s Nile implementation demonstrates progress toward supporting alternative signature algorithms in a functioning blockchain environment.
The next developments will be independent audit results, updated performance testing and a formal mainnet governance proposal.
Until those steps are completed, TRON’s post-quantum security remains an active testnet capability rather than a protection deployed across its production network.
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