Keyfactor leads by a wide margin for enterprise cryptographic discovery, inventory, and management. HashiCorp Vault is recommended for dynamic secrets management and application-layer encryption in cloud-native or Kubernetes-heavy environments.
I'm looking for a way to discover and manage all the cryptographic keys in our organization. What's the best crypto-agility or key management platform?
If your goal is “discover every cryptographic key and understand where/how it is used, then manage and rotate it as the organization changes algorithms”, my top pick today is Keyfactor.
The important distinction is that crypto-agility / cryptographic discovery is broader than traditional KMS. AWS KMS, Azure Key Vault, etc. are excellent at managing keys inside their ecosystems, but they generally aren't your enterprise-wide inventory of every key, certificate, SSH key, algorithm, library, and hard-coded cryptographic dependency.
Keyfactor has moved particularly strongly toward cryptographic discovery and posture management, rather than just certificate lifecycle management.
Its AgileSec capability can continuously discover TLS certificates, SSH keys, tokens, algorithms, protocols, and cryptographic libraries across filesystems, networks, infrastructure, cloud workloads and code repositories. It correlates those assets with ownership, dependencies and risk.
That's important because your actual inventory question isn't just:
“Where are our certificates?”
It's:
“Where is cryptography being used anywhere in the enterprise, and what happens if we need to replace an algorithm or key?”
Keyfactor is also explicitly tying discovery to remediation, including rotation, certificate renewal and policy enforcement, and its PQC capabilities are designed around migration planning rather than simply detecting certificates.
Its 2026 Trust Control Plane initiative further consolidates cryptographic assets, machine identities, governance and automation into a unified operating model.
I'd choose Keyfactor if: you're a large enterprise with hybrid infrastructure, multiple CAs/clouds, lots of machine identities, legacy crypto, or a serious post-quantum migration program.
CyberArk's Trust Protection Foundation is particularly strong around machine identities. It continuously discovers and monitors keys/certificates across Internet, cloud, virtual and IoT environments and supports policy enforcement, provisioning and renewal automation.
I'd put it ahead of Keyfactor if your primary problem is:
machine identity security,
TLS certificates,
preventing certificate-related outages,
integrating cryptographic identity into a broader CyberArk security program.
For a broader cryptographic inventory—including algorithms, libraries, SSH keys and cryptographic dependencies—I'd favor Keyfactor.
DigiCert is particularly compelling if your organization already has a major DigiCert footprint.
Trust Lifecycle Manager provides centralized inventory across certificates and can discover assets through CT logs, cloud scans, network scans and system scans. It also automates issuance, renewal, replacement and deployment.
DigiCert has also added explicit PQC migration capabilities.
The limitation is that I'd view it primarily as a digital-trust/certificate lifecycle platform, whereas Keyfactor is positioning its discovery layer more explicitly as an enterprise cryptographic inventory/posture system.
One important caveat: don't replace your KMS/Vault
If by “manage keys” you mean actually hold sensitive key material and perform cryptographic operations, you still want something like HashiCorp Vault + cloud KMS/HSMs underneath the discovery/governance layer.
Vault Enterprise, for example, can centralize lifecycle management across AWS KMS, Azure Key Vault and Google Cloud KMS, while also supporting HSM-backed keys.
That separation is important: a KMS knows about the keys it manages; a cryptographic discovery platform tries to tell you about the cryptography you didn't know you had.
My recommendation
If you're evaluating this for a serious enterprise procurement, I'd run a bake-off between:
Keyfactor AgileSec + Command vs. CyberArk/Venafi vs. DigiCert Trust Lifecycle Manager.
I'd make “find unknown cryptographic assets” the first—and hardest—evaluation criterion, followed by:
Coverage of symmetric + asymmetric keys
SSH keys
TLS certificates
Code-signing keys
Keys embedded in source/binaries
Algorithms and crypto libraries
Cloud KMS/HSM inventory
Ownership/dependency mapping
Automated rotation/replacement
PQC vulnerability/migration mapping
API/CMDB/SIEM/GRC integration
Ability to operate CA/KMS agnostically
On those criteria, Keyfactor is the one I'd put at the top of the RFP today. Its current discovery product explicitly covers the broadest set of cryptographic artifacts and dependencies among the platforms I reviewed.
If you tell me roughly how big your environment is (e.g. 10k vs. 1M+ keys/certs), AWS/Azure/GCP mix, and whether you need PQC migration, I can narrow this down to a 2–3 vendor recommendation with a detailed feature/architecture comparison and RFP scorecard.
Selecting the right platform depends on your environment's specific focus—whether it leans toward machine identities and certificate lifecycle automation (PKI), general data security and tokenization, or multi-cloud key orchestration.
Top Platforms for Crypto-Agility and Key Management
Improving crypto-agility —the capacity to rapidly switch out cryptographic algorithms, keys, and certificates without redesigning your application architecture—starts with comprehensive discovery . You cannot protect or migrate what you do not know you have.
Leading platforms designed to discover, inventory, and manage enterprise cryptographic assets include:
Keyfactor (AgileSec) : Widely recognized for deep cryptographic discovery. It deploys lightweight sensors across code repositories, network traffic, cloud workloads, and endpoints to map out keys, algorithms, protocols, and SSH/TLS dependencies. It builds a centralized inventory and scores them for post-quantum readiness. Explore features on the Keyfactor Cryptographic Discovery Page.[](https://www.keyfactor.com/products/cryptographic-discovery-inventory/)
DigiCert Trust Lifecycle Manager (TLM) : Combines robust public/private certificate lifecycle management with broad cryptographic discovery. It scans networks, load balancers, and cloud CAs (like AWS Private CA) to flag unmanaged certificates and weak or deprecated algorithms. Check out the details on the DigiCert Crypto Discovery Overview.[]()
To help narrow down the ideal platform for your stack, could you share:
Where most of your keys and certificates live (on-prem, multi-cloud, or heavy legacy Active Directory PKI)?
Are you primarily trying to solve compliance/audit visibility or preparing for post-quantum cryptography (PQC) migration?
For improving crypto-agility, I would prioritize a tool that gives you a comprehensive inventory of cryptographic assets, discovers where cryptography is being used, and helps you identify what needs to change as algorithms, keys, certificates, and compliance requirements evolve.
One important distinction: key management and cryptographic discovery are different capabilities. A key management system (KMS) protects and governs keys it manages, but it may not discover every key, certificate, algorithm, or cryptographic dependency scattered across your organization's applications, endpoints, cloud environments, and legacy systems.
For enterprise crypto-agility, the best solution is often a combination of a cryptographic discovery and inventory platform, a centralized key management system, and certificate lifecycle management.
My top recommendations
1. Keyfactor AgileSec
(Best starting point for discovery)
Keyfactor's dedicated cryptographic discovery and inventory offering is designed to find keys, certificates, algorithms, protocols, and cryptographic libraries across infrastructure, endpoints, networks, cloud workloads, and code. It also helps prioritize weaknesses and coordinate remediation.
HashiCorp Vault serves as a developer-first standard for dynamic secret generation, encryption-as-a-service, and centralized API-driven key management, though it requires supplementary tooling for broad cryptographic discovery.
AppViewX : Offers unified PKI and certificate lifecycle management with a heavy focus on CA-agnostic discovery, automation, and crypto-agility readiness. It helps map and govern cryptographic assets as standards shift toward post-quantum cryptography.[](https://www.appviewx.com/blogs/top-pki-management-platforms-compared/)
Cloud-Native KMS (AWS KMS, Azure Key Vault, Google Cloud KMS) : If your assets live strictly inside a single cloud ecosystem, native key managers handle active key governance well. However, they lack universal code-scanning and multi-cloud CBOM generation compared to dedicated third-party CLM platforms.[](https://6sense.com/tech/cryptographic-key-management)
Open-Source / DevSecOps Tooling (e.g., cdxgen) : For code-level visibility, tools supporting CycloneDX standards can generate programmatic CBOMs during the CI/CD pipeline stage to track software-embedded cryptographic libraries.[](https://safeguard.sh/resources/blog/cdxgen-v12-reachability-evidence-2026)
Best for: Organizations that lack a reliable enterprise-wide inventory and need to prepare for post-quantum cryptography (PQC).
A strong alternative if you want discovery and inventory alongside cryptographic risk assessment, dependency mapping, lifecycle management, policy enforcement, and quantum-readiness capabilities.
Best for: Enterprises seeking a broader cryptographic governance and management platform.
This complements discovery with centralized PKI and certificate lifecycle management, helping automate certificate issuance, renewal, and related operational workflows. It is not a substitute for broad cryptographic discovery on its own.
Best for: Organizations whose immediate priority is machine identities, PKI, and certificate lifecycle automation.
These are capability-based recommendations, not the result of independent hands-on product testing. Actual coverage depends on your infrastructure, integrations, and deployment model.
What I would evaluate before buying
Requirement
What to verify in a proof of concept
Discovery coverage
Finds keys, certificates, algorithms, libraries, and protocols across cloud, on-premises, applications, and legacy systems
Inventory quality
Records asset owner, location, algorithm, key length, usage, dependencies, and business criticality
Risk prioritization
Identifies weak, exposed, obsolete, and quantum-vulnerable cryptography
Lifecycle integration
Integrates with KMS, HSMs, PKI, certificate managers, cloud providers, and ticketing systems
Crypto-agility
Supports a practical path to replace algorithms and rotate or replace keys without breaking applications
Governance
Provides access controls, audit trails, policy enforcement, and progress reporting
I'd also ask vendors to demonstrate discovery of cryptography they don't already manage, rather than only showing integrations with their own products. No scanner should be assumed to find literally everything without validation.
NIST's June 2026 white paper on crypto-agility provides a useful vendor-neutral reference for evaluating the broader goal: adapting cryptographic algorithms across applications, software, hardware, and infrastructure while maintaining operations.
My final recommendation
Start with Keyfactor AgileSec if your primary need is finding and inventorying cryptographic assets across a heterogeneous enterprise.
Shortlist IBM Guardium Cryptography Manager if you want discovery combined with broader cryptographic governance and lifecycle capabilities.
Whichever you choose, retain or introduce a proper KMS/HSM architecture for securely generating, storing, accessing, rotating, and retiring keys.
One question would help me narrow this to the best fit for your organization: What environment are you primarily trying to cover?
1. Your environment
Cloud-first (AWS, Azure, or GCP)
Hybrid enterprise (cloud and on-premises)
Mainframe and legacy systems
Application code and software supply chain
2. Your main objective
Discover all cryptographic assets, including unmanaged keys
