JWT

Description

JSON Web Token

Access token (authorization)

Access tokens are used to inform an API that the bearer of the token has been authorized to access the API and perform a predetermined set of actions specified by the scope. It is used to authorize API access.
The token is generated after a user successfully authenticates and authorizes access.
It does not contain any information about the user itself besides their ID (sub).
It only contains authorization information about which actions the application is allowed to perform at the API (scope).
This is what makes it useful for securing an API, but not for authenticating a user.
An access token is put in the Authorization header of your request, then the API verifies the token and grant access regarding the scope.

token key	description
scope	list of authorized accesses
sub	subject: unique identifier of the user

ID token (authentication)

The ID token is used to retrieve the user’s basic profile information like name, DOB, email, and phone, which is present in the authentication server.
It should not be used to gain access to an API.
OpenID Connect always issues ID tokens along with access tokens to provide compatibility with OAuth.
ID token carries personal information about end-users that authenticate on an OpenID Connect flow.

token key	description
aud	audience: an id of the application that should consume the token
auth_time	date of the authentication
iss	url of the issuer of the token (AWS cognito, AAD)
sub	subject: unique identifier of the user

Refresh token

The refresh token is used to request new access tokens without user interaction.

Token keys

token key	description
auth_time	date of the authentication (nb of seconds since Epoch: 1970-01-01T00:00:00Z UTC)
exp	expiration time
iat	issued at: token creation date
iss	url of the issuer of the token (AWS cognito, AAD)

Azure

acr	Authentication Context class Reference	0 : l'authentification ne respecte pas la norme ISO/IEC 29115
amr	Authentication Method	pwd
appid	APPlication ID	Application ID dans Azure AD Applications
appidacr	APPlication Authentication Context class Reference	0 : client publique 1 : si le client ID et le client secret sont utilisés
oid	Object ID	ID unique de l'utilisateur
scp	Scope	user_impersonation
tid	Tenant ID

Scopes

scope	description
openid	allow to generate an ID token