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Cryptographic Inventory & Discovery

Build an actionable record of cryptographic dependencies, with owners, evidence, and migration decisions.

Cryptographic Inventory & Discovery illustrated with Applications, Protocols, Dependencies, Evidence, Risk, Backlog
Cryptographic Inventory & Discovery — an illustrated overview of the topics on this page.

Content reviewed: October 25, 2026

Discover beyond internet endpoints

Combine application-owner interviews, certificate inventories, configuration review, dependency analysis, and permitted network observations. A TLS scan alone misses code signing, embedded devices, offline workflows, backups, private services, and cryptography inside libraries.

Use authorized discovery methods. Passive observation can miss infrequent paths; static analysis can find unused code. Record confidence and reconcile conflicting evidence before deciding that a dependency is absent.

A minimum useful inventory

RecordWhy it matters
Service, owner, environmentFind the team that can make and validate a change.
Cryptographic purposeSeparate transport, signing, authentication, and stored-data protection.
Algorithm, library, version, protocolLocate a supported upgrade path.
Data lifetime and criticalityPrioritize exposure and business impact.
Supplier, hardware, dependenciesExpose procurement and lifecycle constraints.
Evidence, date, confidenceShow what was observed and what still needs verification.
Cryptographic Inventory & Discovery topic map: Discover beyond internet endpoints, A minimum useful inventory, Turn discovery into a backlog, Keep the record alive
Cryptographic Inventory & Discovery — topic overview

Turn discovery into a backlog

Group dependencies by shared library, gateway, certificate authority, or appliance rather than creating isolated tickets for every endpoint. One platform change may affect many services; one legacy client may prevent an otherwise simple rollout.

Keep the record alive

  • Assign an owner and next action to every high-priority dependency.
  • Capture cryptographic changes in deployment and procurement reviews.
  • Retest after library, certificate, proxy, or firmware updates.
  • Track unknown coverage and unsupported products as explicit risks.

Sources & further reading