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Crypto Agility vs Certificate Agility

Understand the critical difference between crypto agility and certificate agility. Learn why you need both to survive CA distrust events and the post-quantum transition.

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Crypto Agility

Crypto Agility vs Certificate Agility

Two sides of PKI resilience — both essential, often confused

Certificate Agility

"Can you replace 10,000 certificates in 30 days?"

The operational capability to rapidly replace certificates at scale

Crypto Agility

"Can your systems handle a new algorithm tomorrow?"

The architectural flexibility to adopt new cryptographic algorithms

Certificate Agility

Triggered By

CA distrust events
CA compromise
Key compromise
Mass revocation needs
Validity period reductions

Requires

Complete certificate inventory
Automation workflows
Multi-CA relationships
Tested replacement procedures
Crypto Agility

Triggered By

Algorithm deprecation
Key size requirements
Protocol updates
PQC transition

Requires

Abstracted crypto layer
Config-driven algorithm selection
Hardware support (HSMs)
No hardcoded cryptography

Want to learn more?

Read our comprehensive guide covering the differences between crypto agility and certificate agility, implementation strategies, and how to prepare your organization for the post-quantum transition.

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