Quantum Crypto-Breaking Paper Challenged: Experts Urge Lean Proofs

chaumian · x · 2026-08-06

A recent paper claiming to break current cryptography with quantum algorithms faces severe scrutiny. Experts point out multiple flaws and broken theorems, urging researchers to formally prove quantum algorithms using tools like Lean to catch errors immediately.

The controversy also sparks reflection on post-quantum cryptography boundaries: if the breakdown succeeds, lattice-based cryptography might survive, but the overall margin of error remains terrifying. Experts recommend using the largest affordable parameters, keeping ECC as a seatbelt, and continuously investing in alternatives.

Original post →

More from Safety

Safety channel →