Authentication

- add AuthenticationController
- add AuthenticationService
- add getUserByUsername to AccountService
- add findByUsername to AccountRepository
- add SecurityConfiguration
- set up authentication

README.md

@@ -10,15 +10,22 @@ In twilight's hush, where mythic tales unfold, A ledger of legends, the bravest
 | spring.r2dbc.url       | ✓  | Postgres host url       |
 | spring.r2dbc.username  | ✓  | Postgres username       |
 | spring.r2dbc.password  | ✗  | Postgres password       |
+| jwt.private-key        | ✓  | JWT private key file    |
 
 *Required: ✓ can be stored as text, and ✗ need to be stored as secret.*
 
-## Releasing Service
+## Development Configuration
 
 Run `release.sh` script from `master` branch.
 
 ## Development Information
 
+### Private RSA Key
+
+This service uses RAS keys to create identities for users. The private key is used here to generate identities, while the public key is used by **[Hlæja Registry API](https://github.com/swordsteel/hlaeja-registry-api)** to identify a users and accept data.
+
+*For instructions on how to set these up, please refer to our [generate RSA key](https://github.com/swordsteel/hlaeja-development/blob/master/doc/rsa_key.md) documentation.*
+
 ### Global Setting
 
 This services rely on a set of global settings to configure development environments. These settings, managed through Gradle properties or environment variables.