A practitioner’s walkthrough of encryption fundamentals - symmetric, asymmetric, hashing - with real algorithm comparisons, a decision framework, and common mistakes from two decades of building production systems.
BitLocker encryption didn’t fail—trust boundaries shifted. When recovery keys are escrowed by default, control becomes conditional. Linux LUKS, VeraCrypt alternatives, and key management strategies for conscious trust decisions.
A real-world journey with HashiCorp Vault, HA Raft, and multi-cluster secret injection, built from production lessons, not lab demos.