Algorand sets a quantum resilience deadline: full protection by 2027
The Algorand Foundation has officially unveiled an ambitious roadmap for transitioning the network to post-quantum cryptography. The key goal is to achieve "broad quantum resistance" by the end of 2027, with the first major protocol upgrades scheduled for the third quarter of 2026. This is not just a plan, but a strategic necessity: as recent research by Google Quantum AI shows, quantum computers capable of breaking elliptic curve cryptography may emerge with lower resource costs than previously assumed.
The Foundation is Already Laid
It is important to understand that Algorand is not starting from scratch. Preparations have been underway since 2022, when State Proofs were introduced — compact ledger state certificates signed with the quantum-resistant Falcon scheme every 256 rounds. In November 2025, the team achieved a significant breakthrough by conducting the first mainnet transaction authorized specifically by Falcon signatures. This experiment was implemented through the LogicSig mechanism, which, while proving the concept's viability, is a temporary solution.
Plan for 2026-2027: From Accounts to Consensus
The real tectonic shift will occur in the third quarter of 2026. Algorand will gain native support for post-quantum accounts, eliminating the need for users to use workarounds. SDKs will allow generating Falcon-1024 accounts from a standard 25-word seed phrase. The protocol will maintain full compatibility: addresses will not change, and the network will simultaneously support both classic Ed25519 and new schemes — Falcon-512, ML-DSA, and others.
Special attention is given to hybrid accounts, which will combine classic and post-quantum keys. This is a critically important element for a smooth transition, allowing users not to lose access to funds in case of force majeure. By the end of 2026, native multi-signature support for various crypto schemes is planned, and the Algorand Foundation will begin transferring its own treasury to post-quantum addresses.
The most challenging stage is the modernization of consensus. Currently, committee selection depends on VRF, which relies on elliptic curves, and messages are signed via Ed25519. The Foundation expects to present research work on post-quantum VRF by early 2027. For consensus messages, a hybrid model with simultaneous use of Ed25519 and Falcon is being considered.
"Post-quantum security cannot be retrofitted after Q-Day," summarizes Algorand Foundation CTO Bruno Martins.
In my opinion, Algorand's approach is one of the most well-thought-out in the industry. They are not just reacting to the threat but are building infrastructure that will allow the network to survive in the post-quantum era. However, it is worth noting that the timelines are projections, and success will depend on the development of post-quantum cryptography standards. Unlike BNB Chain, where tests showed a significant drop in performance, Algorand is betting on hybridity and gradualness, which should minimize the negative impact on network speed.