Ethereum Researcher Justin Drake Eyes Quantum-Proof Finish by December 2028

Justin Drake wants Ethereum quantum-proof before the decade turns. The Ethereum Foundation researcher used Devcon 8's opening ceremony to lay out a December 2028 goal for what he called the network's "full post-quantum and post-AI transition," according to the official Devcon account — a tighter timeline than the Foundation team's own published 2029 protocol-upgrade target.

The scope is big. The Foundation says the work spans all three Ethereum protocol layers: validator signatures on consensus, data availability on the data layer, and account authentication on execution. The post-quantum team's reasoning is blunt — a quantum machine powerful enough could recover private keys from exposed public keys, opening the door to theft and impersonation.

Hitting that date means shipping forks fast. Drake allowed 24 months to push through three further forks, per the Devcon account, with the proposed sequence running Glamsterdam, Hegotá, and the provisionally named I* and J* forks, according to developer-tooling lead 0xRahul's account of the presentation. Attendee Bob Summerwill flagged J* as the proposed post-quantum endpoint.

That endpoint arrives earlier than the team's earlier roadmap suggested. The post-quantum team's published sequence placed a validator key registry at I, signature-verification features at J, consensus proofs and leanVM at L, and post-quantum blob handling at M, with L1 upgrades potentially done by 2029 and full execution-layer migration taking additional years. Drake's J* would fold protocol-wide protection into an earlier fork.

None of it is locked in. The Strawmap describes itself as a work in progress rather than a prediction, and the post-quantum team says final upgrades get settled through Ethereum's open governance. That's the gap between a conference goal and an activation schedule.

The load-bearing piece is leanVM, a minimal proof-generating virtual machine built to make bulky post-quantum signatures practical by aggregating their verification. Its public codebase carries implementations and benchmarks for validator signatures, user signatures and data availability. The Foundation said leanVM had been "formally-verified end-to-end" in the preceding days, but the repository still labels formal verification "in progress," warns it isn't production ready, and the linked verification project says no proof-system claim has landed while listing end-to-end theorems among its assurance goals. Also still in Draft: EIP-8141, a proposed native route to programmable transaction authorization and post-quantum signatures that would let account code define validation instead of today's elliptic-curve authentication. And as The Defiant previously reported, verifying alternative signatures in a smart contract doesn't automatically strip an existing account's original signing key of its authority — a protocol upgrade and an account migration are two different jobs.