> ## Documentation Index
> Fetch the complete documentation index at: https://docs.aviatrix.com/llms.txt
> Use this file to discover all available pages before exploring further.

# FIPS 140-2 Module

> Aviatrix supports the FIPS 140-2 crypto module.

Aviatrix supports the FIPS 140-2 crypto module.

* The Aviatrix Certificate number is

  <a href={"/docs/enterprise/" + "10.1" + "/reference/controlplane/security-controller-fips"}>3475</a>
  , the certificate is available on the NIST site.

* The Aviatrix FIPS 140-2 Security Policy can be downloaded
  [here](https://csrc.nist.gov/CSRC/media/projects/cryptographic-module-validation-program/documents/security-policies/140sp3475.pdf).

Before enabling FIPS 140-2, the FIPS 140-2 Security patch needs to be applied.

* To apply the FIPS patch, go to the Controller Console, Settings → Maintenance
  → Security Patches → and click **FIPS 140-2**.
* To enable the FIPS patch, go to the Controller Console, Settings → Advanced →
  FIPS 140-2 and click **Enable**.

<Note>
  Enabling the FIPS 140-2 Security patch requires the OpenVPN services to be
  restarted. This causes your VPN clients to disconnect and reconnect to the
  gateways.
</Note>