Master the Art of Cryptographic Engineering using XOR and AES-GCM in Rust

The Board Paper You Don't Have (But Need) Most organisations still think “PQC readiness” means picking an algorithm and waiting for vendors to catch up. It doesn’t. Boards are now asking for something far more serious: A regulator‑defensible business case for quantum‑era cryptographic remediation. Over the past few weeks, at SITG Consulting, we’ve built what is likely one of the first full Board‑Grade PQC Business Case Templates. This is the exact structure global firms keep asking for but rarel