🔐 Post-quantum cryptography in practice

Building Our Own Post-Quantum FIDO Token (neodyme​.io) . Neodyme builds a post-quantum FIDO2 authenticator using SPHINCS+ hash-based signatures on a Nordic nRF52840, replacing EC/RSA

Sites using PQC (September 2025) (netmeister​.org) . Top100K TLS PQC key exchange support, X25519MLKEM768, SecP256r1MLKEM768, MLKEM1024, Amazon CloudFront, Fastly, Facebook, Akamai

Post-quantum security for SSH access on GitHub (github​.blog) . GitHub adds post-quantum secure key exchange sntrup761x25519-sha512 over SSH to safeguard Git data in transit

Update on Possible Breaches to Postquantum Cryptography (trevornestor​.com) . Discussion of Beijing trip and potential new methods to break postquantum cryptography, with links and author background

🧪 Quantum foundations and experiments

Actually, you can't test if quantum uses complex numbers (algassert​.com) . Renou et al.'s real-number quantum test; phase gradients, CHMT vs CHM gates, phase kickback, and a spoof via entangled phase gradients

Quantum Information Supremacy (scottaaronson​.blog) . Scott Aaronson discusses quantum information supremacy, a 12-qubit experiment on Quantinuum H1-1, and the Hilbert-space information budget

Uniting the Light Spectrum on a Chip (caltech​.edu) . Caltech demonstrates on-chip nanophotonic parametric oscillator producing a multi-octave, coherent frequency comb from visible to mid-infrared

Did These Physicists Just Prove True Randomness? (backreaction​.blogspot​.com) . Physicists propose true randomness via Bell tests and quantum randomness experiments, analyzing PBR-like assumptions and measurement independence

📚 Academic Research

NISQ Security and Complexity via Simple Classical Reasoning (arxiv:cs) . Hybrid lifting theorems for QROM security in NISQ models; measure-and-reprogram framework, hybrid coherence, and direct-product hardness results

Toward Minimum Graphic Parity Networks (arxiv:cs) . Minimum graphic parity networks for CNOT-only circuits addressing Ising formulations, with bounds, randomized synthesis, and graph-class recognition

Pulse-to-Circuit Characterization of Stealthy Crosstalk Attack on Multi-Tenant Superconducting Quantum Hardware (arxiv:cs) . End-to-end pulse-to-circuit framework maps pulse-level stealthy crosstalk to logical error channels using density-matrix simulation, QPT, and isometry-based circuit extraction

HiPARS: Highly-Parallel Atom Rearrangement Sequencer (arxiv:cs) . HiPARS enables highly-parallel atom rearrangement in neutral-atom quantum computing using composite moves for AOD traps

Symplectic Lattices and GKP Codes -- Simple Randomized Constructions from Cryptographic Lattices (arxiv:cs) . Randomized symplectic lattices from SIS/R-SIS/M-SIS yield good GKP codes with near-linear decoding

👋 Before you go

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