The Algorand Foundation has released a roadmap for transitioning the network to "broad quantum resilience" by the end of 2027, with the first protocol updates scheduled for Q3 2026.
Quantum computers won't wait for the industry to catch up.
Algorand began preparing in 2022, and Falcon post-quantum signatures are already live on Mainnet.
Now we're going further: native Falcon-1024, hybrid accounts, and a clear path to broad quantum resilience by the end of… pic.twitter.com/Rtj7Vzc0Ph
— Algorand (@Algorand) June 18, 2026
The plan encompasses accounts, wallets, developer tools, multi-signature capabilities, and various consensus components. The foundation cited a March analysis from Google Quantum AI, which indicates that future cryptographically relevant quantum computers could break elliptic curve cryptography with fewer resources than previously thought.
What Has Been Implemented
Algorand began its post-quantum security preparations in 2022 with the introduction of State Proofs. These are compact certificates of ledger state that are signed using the Falcon scheme every 256 rounds.
In November 2025, the team reported the first transaction on the mainnet authorized by Falcon signatures. This utilized LogicSig—a programmable authorization mechanism that the Algorand Virtual Machine verifies before executing the transaction.
Plans for 2026–2027
The protocol release scheduled for Q3 2026 will introduce native support for post-quantum accounts, allowing their use without workarounds through LogicSig. The Algorand Foundation expects that the SDK will enable the creation of Falcon-1024 accounts from a standard 25-word seed phrase.
The protocol will also support multiple signature schemes without changing address formats. The network will continue to operate with Ed25519 while being able to add Falcon-1024, Falcon-512, ML-DSA, and other schemes. There will be a particular focus on hybrid accounts that combine classical and post-quantum keys.
By the end of 2026, the foundation plans to implement native multi-signature support for various cryptographic schemes and support for Falcon-512. In 2026, the Algorand Foundation also intends to start transitioning its treasury to post-quantum accounts, which staking participants will be able to use.
A separate workstream focuses on consensus. Currently, the selection of committee participants in Algorand relies on VRF, which is based on elliptic curve cryptography. Consensus messages are signed using Ed25519. These mechanisms are not considered fully resistant to quantum attacks.
The foundation aims to present research on post-quantum VRF by early 2027, contingent on positive results from ongoing analysis. A hybrid model is being considered for consensus messages, where Ed25519 and Falcon will be used for some time.
“Post-quantum security cannot be retrofitted after Q-Day,” said Bruno Martins, CTO of the Algorand Foundation.
The roadmap explicitly states that timelines, release compositions, and solution sets are provisional and may change as post-quantum cryptography standards develop.
In May, developers from BNB Chain reported on the results of testing the network's transition to post-quantum cryptography. The experiment confirmed the theoretical readiness of the blockchain for future threats but revealed a significant drop in performance.