TRON Post-Quantum Is Live on Testnet; Crypto Briefing Says Mainnet Ready, but No Date Given

Justin Sun said on Oct 10, 2026 that TRON has advanced its post-quantum security work, and Crypto Briefing wrote that the network is ready to bring quantum resistance to mainnet at any time, though that is the outlet's wording and mainnet activation was described as pending testing and governance approval. Outlets report that the FN-DSA-512 signature algorithm was enabled on the Nile testnet following a July 2 committee proposal. No mainnet date was given in the Oct 10 reporting.

What was said on Oct 10

Crypto Briefing reported that Sun spoke in a fireside chat with When Shift Happens founder Kevin Follonier. He described end-to-end post-quantum signature support on Nile. His X post, as embedded in the article, reads: "TRON's post-quantum cryptography is now live on testnet."

The article says TRON is "ready to bring quantum resistance to mainnet at any time." That is the outlet's wording. The embedded post text is truncated, so it is not a verified Sun quote.

What is not new

Cryptometer, MEXC News, KuCoin News and CryptoRank report that the Nile activation followed TRON Committee Proposal No. 20628, approved July 2, 2026. Crypto Briefing says Nile enabled FN-DSA-512 earlier in 2026, that Sun disclosed this in July, and that the feature was opened to developers for testing.

These details come from secondary reports. Blockchain Academics did not review TRON's governance record or Sun's original posts.

In August at Bitcoin Asia 2026 in Hong Kong, Sun said TRON plans to upgrade the entire network to quantum-resistant security by the end of 2026, per Crypto Briefing. That is a stated plan, not a confirmed deployment.

What is running on Nile

FN-DSA-512 is a lattice-based signature algorithm in the Falcon family. An arXiv survey gives the Falcon-512 signature size as 666 bytes.

KuCoin News says Nile runs the GreatVoyage-v4.8.2-PQ1-build1 release. It is described as supporting Falcon-512 and ML-DSA-44 across transaction signatures, SR block-production signatures, P2P node handshakes and TVM contract functions. The full list was cut off in the source.

MEXC News reports that each algorithm needs its own governance activation. Only FN-DSA-512 is reported as activated.

What stands between testnet and mainnet

KuCoin News described mainnet activation as pending further testing and governance approval. Cryptometer's Oct 10 piece says TRON gave no specific mainnet date. It adds that a public announcement does not mean the upgrade can be deployed immediately.

Standards are another open point. A Sept 2026 arXiv paper describes NIST's standardization of Falcon as FN-DSA (FIPS 206) as ongoing; Blockchain Academics has not verified the current status.

Crypto Briefing frames Sun's goal as implementing quantum resistance before "Q-Day." It defines that as the point when advanced quantum computers could derive private keys from exposed public keys.

Market context

TRX traded at about $0.331 on Oct 10, with a market cap of about $31.47 billion (price times roughly 95.0 billion circulating supply), per DefiLlama and CoinGecko data. Tron's chain TVL was $5.70 billion on Oct 10, fourth in DefiLlama's top-chain snapshot. Ethereum ($51.40 billion), Solana ($6.21 billion) and Base ($6.19 billion) ranked ahead.

What to watch next

Three developments to watch: a mainnet governance proposal, a stated activation date, and a separate activation of ML-DSA-44. Sun's end-of-2026 target would require a mainnet vote and date, neither of which appears in the reporting reviewed.

Sources

• Crypto Briefing: TRON post-quantum cryptography mainnet ready
• Cryptometer: Justin Sun says TRON's quantum-resistant cryptography is live on testnet
• KuCoin News: TRON launches quantum-resistant signatures on testnet
• arXiv: Post-Quantum Cryptography and Quantum-Safe Security: A Comprehensive Survey
• DefiLlama: Tron chain TVL
• CoinGecko: TRON (TRX)