Updated Enabling admin page (markdown)

Enabling-admin-page.md

@@ -23,4 +23,62 @@ Note that config changes in the admin page do not take effect until you click th
 **Note:** After changing the `ADMIN_TOKEN`, the currently logged in admins will still be able to use their old login token for [up to 20 minutes](https://github.com/dani-garcia/vaultwarden/blob/main/src/api/admin.rs#L183).
 
 
-**Note:** Removing the environment variable `ADMIN_TOKEN` won't disable the admin page if the value is persisted in the `config.json` file mentioned above. **To disable admin page**, make sure no `ADMIN_TOKEN` environment variable is set, and no `"admin_token"` key exists in `config.json`, if that file exists.
+**Note:** Removing the environment variable `ADMIN_TOKEN` won't disable the admin page if the value is persisted in the `config.json` file mentioned above. **To disable admin page**, make sure no `ADMIN_TOKEN` environment variable is set, and no `"admin_token"` key exists in `config.json`, if that file exists.
+
+<br>
+
+## Secure the `ADMIN_TOKEN`
+
+> :warning: This feature not yet released, but will be soon!
+
+Previously the `ADMIN_TOKEN` could only be in a plain text format.<br>
+You can now hash the `ADMIN_TOKEN` using Argon2 by generating a PHC string.<br>
+This can be generated by using a built-in `hash` command within Vaultwarden, or use the `argon2` CLI tool.<br>
+Within the vaultwarden application we have two presets, one using the [Bitwarden defaults](https://github.com/bitwarden/clients/blob/04d1fbb716bc7676c60a009906e183bb3cbb6047/libs/common/src/enums/kdfType.ts#L8-L10), and one using the [OWASP recommendations](https://cheatsheetseries.owasp.org/cheatsheets/Password_Storage_Cheat_Sheet.html#argon2id).
+
+Some examples on how to generate an Argon2id PHC hash.
+
+Examples:
+
+There is a PHC generator built-in into Vaultwarden which you can run via the CLI `vaultwarden hash`.<br>
+This can be done via `docker exec` on  the already running instance, or by running this locally via docker on your own system.<br>
+I use `vwcontainer` as the container name below, replace this with the correct container name of your instance.<br>
+The Vaultwarden CLI will ask for the password twice, and if both are the same it will output the generated PHC string.
+
+Examples:
+
+```bash
+# Using the Bitwarden defaults (default preset)
+# Via docker on a running container
+docker exec -it vwcontainer /vaultwarden hash
+
+# Via docker and creating a temporary container
+docker run --rm -it vaultwarden/server /vaultwarden hash
+
+# Using the vaultwarden binary directly
+./vaultwarden hash
+
+# Using the OWASP minimum recommended settings
+# Via docker on a running container
+docker exec -it vwcontainer /vaultwarden hash --preset owasp
+
+# Via docker and creating a temporary container
+docker run --rm -it vaultwarden/server /vaultwarden hash --preset owasp
+
+# Using the vaultwarden binary directly
+./vaultwarden hash --preset owasp
+```
+
+<br>
+
+You can also use the `argon2` CLI available on most Linux Distro's.
+
+```bash
+# Using the Bitwarden defaults
+echo -n "MySecretPassword" | argon2 "$(openssl rand -base64 32)" -e -id -k 65540 -t 3 -p 4 ; echo
+# Output: $argon2id$v=19$m=65540,t=3,p=4$bXBGMENBZUVzT3VUSFErTzQzK25Jck1BN2Z0amFuWjdSdVlIQVZqYzAzYz0$T9m73OdD2mz9+aJKLuOAdbvoARdaKxtOZ+jZcSL9/N0
+
+# Using the OWASP minimum recommended settings
+echo -n "MySecretPassword" | argon2 "$(openssl rand -base64 32)" -e -id -k 19456 -t 2 -p 1 ; echo
+# Output: $argon2id$v=19$m=19456,t=2,p=1$cXpKdUxHSWhlaUs1QVVsSStkbTRPQVFPSmdpamFCMHdvYjVkWTVKaDdpYz0$E1UgBKjUCD2Roy0jdHAJvXihugpG+N9WcAaR8P6Qn/8
+```