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Encryptorium

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Articles on post-quantum cryptography, standards, and the transition to quantum-safe systems.

Solana's quantum-readiness post: what the engineering shows, what the framing softens

Solana's quantum-readiness post understates implementation maturity, side-channel risk, and migration mechanics. The engineering is real; the framing is ahead.

Too much of the PQC market sells fear. Here is what practitioners should do first.

Vendor PQC marketing sells urgency before discovery. NIST, NCSC, and CISA say the opposite: start with cryptographic inventory, not an algorithm platform.

Quantum-safe Bitcoin transactions without a soft fork: what the QSB paper actually says

StarkWare's QSB paper shows a quantum-safe way to spend legacy Bitcoin outputs with no soft fork. Here are the honest numbers and the five things it still cannot fix.

PQC Migration Plans Have a ZK Blind Spot

Major PQC migration documents from NIST, NCSC, and the EU omit zero-knowledge verification infrastructure. That gap leaves deployed ZK stacks unaccounted for.

Google's quantum threat to Bitcoin: what the paper actually says

A new Google Quantum AI paper shows that breaking Bitcoin's elliptic curve signatures could require fewer than 500,000 physical qubits, roughly a 20x reduction from prior estimates. The result is real. The panic is not.

Why organizations need a cryptographic bill of materials for PQC migration

You cannot migrate what you cannot see. CycloneDX's CBOM capability provides the foundation for post-quantum migration planning, starting with an inventory of every algorithm, key, and certificate.

PQ/T hybrid schemes: bridging traditional and post-quantum cryptography

PQ/T hybrid schemes combine traditional and post-quantum algorithms to manage migration risk. When to use them, the overhead, and why they are an interim step.

ML-KEM explained: NIST's new standard for post-quantum key establishment

ML-KEM (FIPS 203) is NIST's standard KEM for post-quantum key establishment. This post covers the MLWE hardness assumption, parameter set tradeoffs, and TLS 1.3 hybrid deployment.

Post-quantum cryptography: what it is and why migration starts now

An introduction to post-quantum cryptography: what it is, why today's public-key cryptography is at risk, and what NIST's new standards mean for secure communication.

Post-quantum ZK is an architecture problem

Post-quantum migration for ZK proof systems is an architecture problem, not a parameter-tuning problem. A four-layer framework for analyzing where quantum-vulnerable assumptions sit in a proving stack, applied to Zcash, ZKsync Era, and Starknet.

Crypto agility: designing systems that survive broken cryptography

Crypto agility is the ability to swap cryptographic primitives without redesigning systems. What it requires in practice, and why the PQC transition demands it.