Laravel makes implementing authentication very simple. In fact, almost everything is configured for you out of the box. The authentication configuration file is located at config/auth.php, which contains several well documented options for tweaking the behavior of the authentication services.
By default, Laravel includes an AppUser Eloquent model in your app directory. This model may be used with the default Eloquent authentication driver. If your application is not using Eloquent, you may use the database authentication driver which uses the Laravel query builder.
When building the database schema for the AppUser model, make sure the password column is at least 60 characters in length.
Also, you should verify that your users (or equivalent) table contains a nullable, string remember_token column of 100 characters. This column will be used to store a token for "remember me" sessions being maintained by your application. This can be done by using $table->rememberToken(); in a migration.
Laravel ships with two authentication controllers out of the box, which are located in the AppHttpControllersAuth namespace. The AuthController handles new user registration and authentication, while the PasswordController contains the logic to help existing users reset their forgotten passwords. Each of these controllers uses a trait to include their necessary methods. For many applications, you will not need to modify these controllers at all.