Algorand sets the standard: quantum protection roadmap until 2027
In the world of cryptocurrencies, where the threat of quantum computing is becoming increasingly real, the Algorand Foundation has taken a decisive step by presenting a detailed roadmap for transitioning the network to "broad quantum resilience." The key deadline is the end of 2027, with the first protocol updates scheduled for the third quarter of 2026.
This is not just a declaration of intent. The Foundation has already done significant work. Preparation began back in 2022 with the implementation of State Proofs — compact certificates of the ledger state, signed using the quantum-resistant Falcon scheme every 256 rounds. Moreover, in November 2025, the first transaction authorized solely by Falcon signatures was conducted on the Algorand mainnet, using the programmable authorization mechanism LogicSig.
The plan covers all key aspects of the network: accounts, wallets, developer tools, multi-signature, and even consensus components. This step is based on an analysis by Google Quantum AI, which showed that future quantum computers will be able to break elliptic curve cryptography with far fewer resources than previously assumed.
What will be implemented in 2026–2027
The key milestone will be the protocol release in the third quarter of 2026. It is expected to provide native support for post-quantum accounts, eliminating the need for users to resort to workarounds via LogicSig. The SDKs are expected to allow creating Falcon-1024 accounts from a standard 25-word seed phrase. Importantly, the protocol will support multiple signature schemes simultaneously without changing the address format. The network will continue to work with Ed25519 but will be able to add Falcon-1024, Falcon-512, ML-DSA, and others.
Special attention is given to hybrid accounts that combine classical and post-quantum keys. By the end of 2026, native multi-signature support for multiple cryptographic schemes and support for Falcon-512 are planned. The Foundation will also begin migrating its own treasury to post-quantum accounts, and such addresses will be usable by staking participants.
Consensus under protection
The most complex block of work concerns consensus. Currently, the selection of committee members depends on VRF, which relies on elliptic curves, and messages are signed via Ed25519. These mechanisms are vulnerable. The Foundation plans to present research work on post-quantum VRF by early 2027, and a hybrid model using Ed25519 and Falcon is being considered for consensus messages.
As Algorand Foundation CTO Bruno Martins rightly noted: "Post-quantum security cannot be patched after Q-Day." This approach is not just a security protocol but a strategic imperative for any blockchain aiming for long-term existence. Unlike recent experiments by BNB Chain, which showed a significant performance drop when transitioning to post-quantum cryptography, Algorand is betting on a gradual but comprehensive integration, which, in my opinion, is a more balanced and effective path.