Post-Quantum Cryptography

The locks protecting the world's data are about to break.

A new kind of computer can pick them. Aethyr already replaced them.

Keep reading
01The Foundation

How encryption protects you today

Every time you bank online, send a private message, or sign a contract, your data gets scrambled by a digital lock. Today's locks rest on a math puzzle so slow to solve by guessing that no ordinary computer could crack it in a million lifetimes. That's why the internet has been safe to trust.

Until now.

Your message
“Transfer approved. See attached.”
Locked
8f3a2c9e10b7d4f6aa01c5e9 7b22d8f04e6193ac5d7f88e2 41b0c6a9ff3e7720d915c83b e0a4f1672c9d3850bb7e6af1
02Why That's Ending

Quantum computers don't guess.

They shortcut straight through the exact math puzzle today's locks depend on, solving in hours what should take billions of years. When these machines mature, the locks fall: online banking, medical records, classified systems, the private messages of everyone, all built on a foundation with a quietly expiring shelf life.

Time to break one lock
Classical computer · brute-force guessing≈ billions of years
Quantum computer · math shortcuthours

Same lock. The quantum machine doesn't try harder; it takes a road that isn't there for an ordinary computer.

Present Tense

The attack has already started.

Here's what most people miss: you don't need a quantum computer today to be a victim today. Adversaries are recording encrypted data right now, storing it, and waiting. The day a working quantum computer arrives, everything they saved gets unlocked at once.

Your secrets from this year are being harvested for a key that doesn't exist yet. Security experts call it “harvest now, decrypt later.”

It means the clock isn't ticking toward a future problem. It's already run out for any data that has to stay secret for more than a few years.

The timeline
Today

Your encrypted data is quietly recorded and stored.

Q-Day
The unlock

A working quantum computer unlocks all of it, at once.

What We Built

We rebuilt the locks from a math even quantum computers can't break.

Aethyr replaced the breakable foundation with a new generation of cryptography built on a completely different kind of math, one with no quantum shortcut. These aren't experimental. They're the official U.S. government standard for the quantum era, and Aethyr's implementation covers nine parameter sets across the three finalized standards, each tested against NIST's public algorithm vectors.

9
parameter sets tested

Aethyr's implementation is built on NIST's finalized post-quantum standards, ML-KEM (FIPS 203), ML-DSA (FIPS 204) and SLH-DSA (FIPS 205), across nine parameter sets.

No second tries, no exceptions filed. Every standard algorithm computed correctly the first time it was tested.

Why the whole chain matters

Break once, forge everywhere.

A signature chain is only as strong as its weakest link. In September 2026, Cloudflare's 1.1.1.1 resolver began validating post-quantum DNSSEC signatures, a real milestone. It is the validating end only: the DNS root, every registry, and every publicly trusted certificate are still signed with classical algorithms, and Cloudflare's own target for a fully post-quantum chain is 2029. Until then, one recovered classical key high in the chain forges every record below it.

A Console deployment does not wait on that chain. Every identity in it, agent, node, and device, derives from a post-quantum commissioner key, and the wire format has no classical algorithm to fall back to. The public internet will get there. Inside your boundary, it is already the design.

Read Cloudflare's announcement
Inside the System

Three layers, working together.

01

The sealed envelope

Scrambles your data so only the right person can ever open it. Even a quantum computer is locked out.

02

The signature

Proves a message is genuinely from who it claims, and that not a single word was altered in transit. Impossible to forge.

03

The deep vault

A second, deliberately ultra-conservative lock for the things that must stay trustworthy for decades. Belt and suspenders for your most permanent records.

Built to stay private and trustworthy no matter what's coming.

Built on the U.S. government's finalized post-quantum standards, tested against its public algorithm vectors. Built for defense, regulated industries, and anyone whose data has to outlive the next computer.