# Authelia (/docs/configuration/authentication/OAuth2-OIDC/authelia)

- Generate a client secret using:
  ```
  docker run --rm authelia/authelia:latest authelia crypto hash generate pbkdf2 --variant sha512 --random --random.length 72 --random.charset rfc3986
  ```
- Then in your `configuration.yml` add the following in the oidc section:
  ```bash filename="configuration.yml"
    - client_id: 'librechat'
      client_name: 'LibreChat'
      client_secret: '$pbkdf2-GENERATED_SECRET_KEY_HERE'
      public: false
      authorization_policy: 'two_factor'
      redirect_uris:
        - 'https://LIBRECHAT.URL/oauth/openid/callback'
      scopes:
        - 'openid'
        - 'profile'
        - 'email'
      userinfo_signing_algorithm: 'none'
  ```
- Then restart Authelia

# LibreChat

- Open the `.env` file in your project folder and add the following variables:
  ```bash filename=".env"
  ALLOW_SOCIAL_LOGIN=true
  OPENID_BUTTON_LABEL='Log in with Authelia'
  OPENID_ISSUER=https://auth.example.com/.well-known/openid-configuration
  OPENID_CLIENT_ID=librechat
  OPENID_CLIENT_SECRET=ACTUAL_GENERATED_SECRET_HERE
  OPENID_SESSION_SECRET=ANY_RANDOM_STRING
  OPENID_CALLBACK_URL=/oauth/openid/callback
  OPENID_SCOPE="openid profile email"
  OPENID_IMAGE_URL=https://www.authelia.com/images/branding/logo-cropped.png
  # Optional: redirects the user to the end session endpoint after logging out
  OPENID_USE_END_SESSION_ENDPOINT=true 
  ```