Cryptographic inventory: what security teams need before PQC migration

TL;DR: Cryptographic sprawl now spans cloud KMS, on-premises HSMs, code repositories and file systems, and Fortanix argues that organizations cannot start post-quantum migration until they know where keys, certificates, algorithms and related dependencies live. The governance problem is not algorithm choice alone but incomplete visibility into what cryptography protects and where rotation, policy and remediation will break down.

Editorial analysis by NHI Mgmt Group, based on content published by Fortanix: “What is a Cryptographic Inventory?”.

Key questions

Q: What breaks when teams plan PQC migration without a clear cryptographic inventory?

A: A missing cryptographic inventory creates hidden dependency risk.

Q: Why does incomplete cryptographic visibility create more risk during quantum transition planning?

A: Because you cannot migrate or retire what you cannot find.

Q: What breaks when cryptographic assets are not mapped to business context?

A: Teams lose the ability to prioritise based on impact.

Practitioner guidance

• Implement continuous cryptographic discovery Scan cloud KMS, on-premises HSMs, repositories, file systems and containers on an ongoing basis so new keys, certificates and libraries do not bypass governance.
• Map every cryptographic asset to its dependency chain Record which services, applications and data sets each key or certificate protects so remediation decisions do not break production dependencies.
• Classify assets by quantum exposure and retention need Separate long-lived confidential data from short-lived use cases and prioritise the assets whose compromise would matter after PQC transition windows.

Bottom line: Cryptographic inventory is the control that turns scattered keys, certificates and algorithms into a governed asset base.

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