Cryptographic Algorithm Validation Program

No. CAVP validation and Cryptographic Module Validation Program (CMVP) validation are distinct, and confusing the two is a common and consequential mistake. CAVP, administered by NIST (in cooperation with the Communications Security Establishment of Canada under the historical joint arrangement), validates that a specific implementation of an approved cryptographic algorithm produces correct results against known test vectors. It does not validate the security of the module that contains the algorithm. FIPS 140 validation of a cryptographic module is performed under the CMVP, which generally requires that the underlying algorithms first be CAVP-validated as a prerequisite, but a CAVP certificate alone does not confer module validation. You should verify the current relationship and prerequisites against the official NIST program documentation, because program requirements and the applicable FIPS 140 revision can change.

Generally, no, CAVP validation is a formal, evidence-producing process distinct from informal or internal testing, and treating it as optional can create compliance gaps. CAVP produces a validation certificate that serves as recognized evidence that a particular implementation was tested against the program's test vectors for the applicable algorithm and mode. Internal testing or a vendor's own assertion of correctness does not substitute for a validation certificate where policy or contractual requirements call for validated cryptography. Confirm whether your specific obligation requires validated algorithms and validated modules, and consult the current authoritative program guidance, since testing scope and accepted algorithms are revised over time.

In most implementations, you should locate the vendor's validation certificate and confirm the specific algorithm, mode, key sizes, and the exact implementation covered, rather than relying on a general marketing claim. NIST publishes validation listings, so you can generally cross-reference the certificate details against the published entry. Verify that the validated implementation matches the version, platform, and operational configuration you are actually deploying, because a certificate applies to the tested implementation and environment. This entry does not cover procurement or contractual language specifics, which you should confirm against current official sources and your applicable requirements.

CAVP validation addresses whether cryptographic algorithm implementations are tested and validated; it is one input among many and does not by itself satisfy system authorization. For systems handling CUI, DoD systems under the RMF, or civilian agency systems under FISMA, requirements to use validated cryptography generally derive from the applicable control baseline and agency tailoring, and validated cryptography is typically only one element of the cryptographic protection controls. You should confirm which specific controls apply to your system category and impact level, and remember that assessment and authorization are separate from algorithm validation. Verify current requirements against the governing publications for your environment.

A certificate reflects testing performed against a specific implementation and the algorithm testing requirements in effect at the time, so it should not be assumed to remain applicable indefinitely without review. Program transitions, deprecation of algorithms or modes, and changes to accepted key sizes can affect whether a previously validated implementation continues to meet current requirements. In addition, changes to the implementation itself generally require re-validation. Check the current program status of the specific algorithms you rely on and confirm whether any transitions apply, since these details change across program updates.

It depends on what your specific requirement calls for, and this distinction should be confirmed carefully. Many requirements for validated cryptography point to FIPS 140 module validation under the CMVP, for which CAVP algorithm validation is generally a prerequisite rather than a substitute. If your obligation requires a validated cryptographic module, CAVP algorithm certificates alone would typically not be sufficient. Review the exact wording of the applicable requirement and verify against the current authoritative program and control documentation, because whether algorithm-level or module-level validation is required varies by requirement and can change across revisions.