Aptos · 2026-11-14 05:00 UTC

Imagine knowing that someone is developing a technology capable of opening today's strongest digital locks. You don't know exactly when it'll be ready. But you know the locks will eventually need to change. That's the challenge quantum computing presents to modern cryptography. Much of today's digital security relies on mathematical problems that conventional computers cannot practically solve. Sufficiently powerful quantum computers could change that, and financial infrastructure cannot afford to wait until those protections become vulnerable. That's the idea behind AIP-137, authored by Aptos Labs' Dr. Alin Tomescu. It proposes an optional post-quantum signature scheme for Aptos accounts, based on SLH-DSA, a NIST-standardized algorithm. Existing signature schemes would keep working, and users could opt in over time without moving their assets to a new address. The proposal has been accepted and is feature-gated, so it would be turned on through governance when needed. Account signatures are one part of a broader, full-stack effort toward post-quantum readiness. The aim is to have that path ready well in advance.

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