authelia/docs/content/en/integration/openid-connect/introduction.md

title	description	lead	date	draft	images	menu	weight	toc	aliases
OpenID Connect	An introduction into integrating the Authelia OpenID Connect Provider with an OpenID Connect relying party	An introduction into integrating the Authelia OpenID Connect Provider with an OpenID Connect relying party.	2022-06-15T17:51:47+10:00	false		integration parent openid-connect	610	true	/docs/community/oidc-integrations.html

Authelia supports OpenID Connect as part of an open beta. This section details implementation specifics that can be used for integrating Authelia with relying parties, as well as specific documentation for some relying parties.

See the configuration documentation for information on how to configure OpenID Connect.

Scope Definitions

openid

This is the default scope for OpenID Connect. This field is forced on every client by the configuration validation that Authelia does.

Important Note: The subject identifiers or sub Claim has been changed to a RFC4122 UUID V4 to identify the individual user as per the Subject Identifier Types section of the OpenID Connect specification. Please use the preferred_username Claim instead.

Claim	JWT Type	Authelia Attribute	Description
iss	string	hostname	The issuer name, determined by URL
jti	string(uuid)	N/A	A RFC4122 UUID V4 representing the JWT Identifier
rat	number	N/A	The time when the token was requested
exp	number	N/A	Expires
iat	number	N/A	The time when the token was issued
auth_time	number	N/A	The time the user authenticated with Authelia
sub	string(uuid)	opaque id	A RFC4122 UUID V4 linked to the user who logged in
scope	string	scopes	Granted scopes (space delimited)
scp	array[string]	scopes	Granted scopes
aud	array[string]	N/A	Audience
amr	array[string]	N/A	An RFC8176 list of authentication method reference values
azp	string	id (client)	The authorized party
client_id	string	id (client)	The client id

offline_access

This scope is a special scope designed to allow applications to obtain a Refresh Token which allows extended access to an application on behalf of a user. A Refresh Token is a special Access Token that allows refreshing previously issued token credentials, effectively it allows the relying party to obtain new tokens periodically.

Generally unless an application supports this and actively requests this scope they should not be granted this scope via the client configuration.

groups

This scope includes the groups the authentication backend reports the user is a member of in the Claims of the ID Token.

Claim	JWT Type	Authelia Attribute	Description
groups	array[string]	groups	List of user's groups discovered via authentication

email

This scope includes the email information the authentication backend reports about the user in the Claims of the ID Token.

Claim	JWT Type	Authelia Attribute	Description
email	string	email[0]	The first email address in the list of emails
email_verified	bool	N/A	If the email is verified, assumed true for the time being
alt_emails	array[string]	email[1:]	All email addresses that are not in the email JWT field

profile

This scope includes the profile information the authentication backend reports about the user in the Claims of the ID Token.

Claim	JWT Type	Authelia Attribute	Description
preferred_username	string	username	The username the user used to login with
name	string	display_name	The users display name

Authentication Method References

Authelia currently supports adding the amr Claim to the ID Token utilizing the RFC8176 Authentication Method Reference values.

The values this Claim has are not strictly defined by the OpenID Connect specification. As such, some backends may expect a specification other than RFC8176 for this purpose. If you have such an application and wish for us to support it then you're encouraged to create a feature request.

Below is a list of the potential values we place in the Claim and their meaning:

Value	Description	Factor	Channel
mfa	User used multiple factors to login (see factor column)	N/A	N/A
mca	User used multiple channels to login (see channel column)	N/A	N/A
user	User confirmed they were present when using their hardware key	N/A	N/A
pin	User confirmed they are the owner of the hardware key with a pin	N/A	N/A
pwd	User used a username and password to login	Know	Browser
otp	User used TOTP to login	Have	Browser
hwk	User used a hardware key to login	Have	Browser
sms	User used Duo to login	Have	External

User Information Signing Algorithm

The following table describes the response from the UserInfo endpoint depending on the userinfo_signing_algorithm.

Signing Algorithm	Encoding	Content Type
none	JSON	application/json; charset="UTF-8"
RS256	JWT (Signed)	application/jwt; charset="UTF-8"

Endpoint Implementations

The following section documents the endpoints we implement and their respective paths. This information can traditionally be discovered by relying parties that utilize OpenID Connect Discovery, however this information may be useful for clients which do not implement this.

The endpoints can be discovered easily by visiting the Discovery and Metadata endpoints. It is recommended regardless of your version of Authelia that you utilize this version as it will always produce the correct endpoint URLs. The paths for the Discovery/Metadata endpoints are part of IANA's well known registration but are also documented in a table below.

These tables document the endpoints we currently support and their paths in the most recent version of Authelia. The paths are appended to the end of the primary URL used to access Authelia. The tables use the url https://auth.example.com as an example of the Authelia root URL which is also the OpenID Connect issuer.

Well Known Discovery Endpoints

These endpoints can be utilized to discover other endpoints and metadata about the Authelia OP.

Endpoint	Path
OpenID Connect Discovery	https://auth.example.com/.well-known/openid-configuration
OAuth 2.0 Authorization Server Metadata	https://auth.example.com/.well-known/oauth-authorization-server

Discoverable Endpoints

These endpoints implement OpenID Connect elements.

Endpoint	Path	Discovery Attribute
JSON Web Key Sets	https://auth.example.com/jwks.json	jwks_uri
Authorization	https://auth.example.com/api/oidc/authorization	authorization_endpoint
Token	https://auth.example.com/api/oidc/token	token_endpoint
UserInfo	https://auth.example.com/api/oidc/userinfo	userinfo_endpoint
Introspection	https://auth.example.com/api/oidc/introspection	introspection_endpoint
Revocation	https://auth.example.com/api/oidc/revocation	revocation_endpoint