About This Guide

QianHeng PQC (乾珩 PQC) is a bilingual, teaching-first guide to the post-quantum transition — it explains the why and how for quantum-safe engineers and practitioners rather than reprinting the standards. It runs from the NIST standards and the algorithms behind them, through China's commercial cryptography (国密), to how real systems actually migrate, with an industry focus throughout. ~90 pages, English and 中文, written for the engineers and teams who actually do the work.

Who it's for

• Security architects & CISOs planning a quantum-safe roadmap.
• Engineers integrating PQC into TLS, SSH, IPsec, PKI, code-signing and products.
• Compliance & risk teams mapping 密评 / CNSA 2.0 / regulatory deadlines to action.
• Industry leads in finance, power/energy and Web3 who need sector-specific playbooks.

What's inside — 12 sections

What makes it different

• Explanation over specification — industry-oriented walkthroughs that teach the reasoning and the migration, not a standards dump; the authoritative text is always cited for the letter of the law.
• Standards + 国密 in one place — NIST/IETF/ISO/ETSI alongside SM algorithms, with a terminology crosswalk across all of them.
• From "read" to "run" — a Code Lab of copy-paste OpenSSL 3.5+ recipes with real, verified outputs.
• From "risk" to "roadmap" — an interactive risk self-assessment, downloadable CBOM tooling, and phased migration playbooks.
• China-grounded — 密评 / CII compliance, domestic vendors, and finance/power/Web3 solutions.

How it's kept accurate

Technical facts (algorithm sizes, standard IDs, RFC numbers, dates) were verified against live authoritative sources — csrc.nist.gov, the IETF datatracker, rfc-editor.org, ISO and SCA — and cross-checked with an independent LLM pass. A weekly watcher monitors the IETF/NIST status of the in-flight standards this guide tracks, so it doesn't silently go stale.

Use it your way

• Online — searchable, bilingual (EN / 中文 toggle, top-right), light/dark.