DOC-4964 RS: Added change_password_hashing_algorithm REST API request reference

Author: rrelledge

content/operate/rs/references/rest-api/requests/cluster/change_password_hashing_algorithm.md

@@ -0,0 +1,64 @@
+---
+Title: Change password hashing algorithm requests
+alwaysopen: false
+categories:
+- docs
+- operate
+- rs
+description: REST API requests to change the hashing algorithm for user passwords.
+headerRange: '[1-2]'
+linkTitle: change_password_hashing_algorithm
+weight: $weight
+---
+
+| Method | Path | Description |
+|--------|------|-------------|
+| [PATCH](#patch-change-password-hashing-algorithm) | `/v1/cluster/change_password_hashing_algorithm` | Change the hashing policy for user passwords |
+
+## Change password hashing algorithm {#patch-change-password-hashing-algorithm}
+
+	PATCH /v1/cluster/change_password_hashing_algorithm
+
+Changes the password hashing algorithm for the entire cluster. When you change the hashing algorithm, it rehashes the administrator password and all user passwords, including default users.
+
+The hashing algorithm options are `SHA-256` or `PBKDF2`. The default hashing algorithm is `SHA-256`.
+
+#### Required permissions
+
+| Permission name |
+|-----------------|
+| [update_cluster]({{< relref "/operate/rs/references/rest-api/permissions#update_cluster" >}}) |
+
+### Request {#patch-request} 
+
+#### Example HTTP request
+
+	PATCH /v1/cluster/change_password_hashing_algorithm
+
+#### Example JSON body
+
+```json
+{ "algorithm": "PBKDF2" }
+```
+
+#### Request headers
+
+| Key | Value | Description |
+|-----|-------|-------------|
+| Host | cnm.cluster.fqdn | Domain name |
+| Accept | application/json | Accepted media type |
+
+#### Request body
+
+Include a JSON object `{ "algorithm": "<option>" }` in the request body. The hashing algorithm options are `SHA-256` or `PBKDF2`.
+
+### Response {#patch-response} 
+
+Returns a status code that indicates the success or failure of the update.
+
+### Status codes {#patch-status-codes} 
+
+| Code | Description |
+|------|-------------|
+| [200 OK](https://www.rfc-editor.org/rfc/rfc9110.html#name-200-ok) | Success |
+| [400 Bad Request](https://www.rfc-editor.org/rfc/rfc9110.html#name-400-bad-request) | Supported algorithm must be provided, or this algorithm is already set |