How do you build quantum-secure systems before quantum computers even exist?

In this episode of The Quantum Podcast, Christopher Smith (founder of Quantus Network) and Joe Mattia break down the misconceptions, mathematics, and market signals behind the global race toward post-quantum cryptography.

They explore how cryptographic security is proven through mathematical guarantees rather than hardware tests, why Bitcoin's elliptic-curve signatures are vulnerable to quantum attacks, and why lattice-based cryptography — including Dilithium, now standardized by NIST — represents the next frontier of secure digital infrastructure.

From safe-cracking analogies and electromagnetic side-channel attacks, to reversible transactions, photonic quantum computing, and the real-world politics of quantum-era Bitcoin, this episode maps the coming transformation of global security — and how Quantus is preparing the internet for the post-quantum world.

Follow the Guests

Christopher Smith
https://x.com/YuviLightman

Joe Mattia
https://x.com/JoeMattia

Quantus Network
https://www.quantus.com/
https://t.me/quantusnetwork
https://linktr.ee/quantusnetwork

⏱️ Chapters

00:00 – Quantum Monday & setting the record straight
02:00 – Why we don't need quantum computers to build quantum security
05:00 – Modeling quantum algorithms & the math that drives cryptography
08:00 – Classical vs quantum speed & why factorization breaks everything
11:00 – Debug loops, hardware evolution & why quantum machines are hard to build
14:00 – Market signals, investment flows & the real quantum arms race
17:00 – Bitcoin's elliptic-curve vulnerability & quantum-era politics
20:00 – Lattice cryptography, Dilithium & the future of secure signatures
24:00 – Side-channel attacks, constant-time coding & listening to the hardware
27:00 – The coming quantum upgrade & how Quantus is building ahead of it