Added details of how to get a Forms license that will work in FIPS-compliant environments.

13/umbraco-forms/installation/the-licensing-model.md

@@ -105,3 +105,24 @@ The value contains the path of your custom license directory relative to the roo
 {% hint style="warning" %}
 This will also change the location for other Umbraco-related licenses in this project.
 {% endhint %}
+
+## Federal Information Processing Standards (FIPS) Compliant Environments
+
+The algorithm used to decrypt Forms licenses is not supported on locked down FIPS compliant environments, such as those used in the defense industry.
+
+If you are in this situation and unable to resolve it via configuration of the environment, please reach out to Umbraco support.
+
+We have the possibility of generating and providing Forms licenses using alternate algorithms.
+
+{% hint style="info" %}
+You can use this configuration if you reference `Umbraco.Licensing` version `13.0.1` or higher.
+{% endhint %}
+
+Apply the following configuration with the appropriate algorithm - `DES` (the default), `TripleDES`, or `AES`:
+
+```json
+  "Umbraco": {
+    "Licensing": {
+      "LicenseEncodeAndDecodeAlgorithm": "DES|TripleDES|AES"
+    },
+``````