### Authentication

### Why Authentication

Minecraft is the most Popular game out there, And is is very easy to play it without paying for it. In Fact you don't pay for the Game, You pay for an Minecraft Account.
People who don't bough the Game but play online are using [Cracked Accounts](#cracked-accounts)

#### Cracked Accounts

- Don't cost any Money
- Everyone can set their own Nickname
- Have no UUID
- Have no Skin/Cape
- Not Secure

The Problem is that everyone can name themself how they want, Allowing to Join the Server as a Staff Member for example and having extended permissions,
Cracked accounts are also often used for Botting and [Denial of Service](https://de.wikipedia.org/wiki/Denial_of_Service) Attacks.

### Cracked Server

By default the `online_mode` is enabled in the configuration, This enables Authentication disallowing [Cracked Accounts](#cracked-accounts). When you are willing to allow Cracked Accounts, you can dissable `online_mode`
in the `configuration.toml`

### How Authentication works
To ensure a player has a premium accounts:

1. A client with a premium account sends a login request to the Mojang session server.
2. Mojang's servers verify the client's credentials and add the player to the their Servers
3. Now our server will send a Request to the Session servers and check if the Player has joined the Session Server .