For web apps, this app might be the same as the audience. App (the client) that asked for the token.Audience, which is the app for which the token was generated.Subject (like the user, but not daemons).Security Token Server that generated the token.The claims present in a specific token depend on many things, such as the type of token, the type of credential used to authenticate the subject, and the application configuration.Īpplications can use claims for various tasks, such as to:Ī claim consists of key-value pairs that provide information such as the: For example, a claim might contain facts about the security principal that was authenticated by the authorization server. A claim might also be referred to as a JWT claim or a JSON Web Token claim.Ĭlaims are name or value pairs that relay facts about the token subject. Since JWTs are used as security tokens, this form of authentication is sometimes called JWT authentication.Ī claim provides assertions about one entity, such as a client application or resource owner, to another entity, such as a resource server. The Microsoft identity platform implements security tokens as JSON Web Tokens (JWTs) that contain claims. When the authorization server receives the refresh token, it won't issue another valid access token if the user is no longer authorized. This is how the scenario of someone leaving the enterprise is handled. If the user access to the app wasn't revoked, it will get back a new access token and a new refresh token. An app can provide a refresh token to the authorization server. A refresh token, which is used to refresh the access token when the access token is close to expiring.Īccess tokens are passed to a web API as the bearer token in the Authorization header.An access token, which accesses the application or protected resource.Tokens are valid for only a limited amount of time, so the authorization server frequently provides a pair of tokens To validate a token, the app verifies the signature by using the authorization server public key to validate that the signature was created using the private key. ![]() The authorization server publishes the corresponding public key. The token is signed by the authorization server with a private key. It's up to the app for which the token was generated, the web app that signed in the user, or the web API being called to validate the token. For information on SAML assertions, see Azure Active Directory SAML token reference. Many enterprise applications use SAML to authenticate users. To learn more about how the Microsoft identity platform issues ID tokens, see ID tokens. ![]() ID tokens are used by the client to authenticate the user. They can be sent alongside or instead of an access token. ID token: ID tokens are sent to the client application as part of an OpenID Connect flow. To learn more about how the Microsoft identity platform uses refresh tokens to revoke permissions, see Refresh tokens. The client application can then exchange this refresh token for a new access token when needed. ![]() Refresh token: Because access tokens are valid for only a short period of time, authorization servers will sometimes issue a refresh token at the same time the access token is issued. To learn more about how the Microsoft identity platform issues access tokens, see Access tokens. Access tokens are validated by resources to grant access to a client app. The information can be used to access web APIs and other protected resources. It contains information about the user and the resource for which the token is intended. Security tokens allow a client application to access protected resources on a resource server.Īccess token: An access token is a security token issued by an authorization server as part of an OAuth 2.0 flow. The Microsoft identity platform authenticates users and provides security tokens, such as access tokens, refresh tokens, and ID tokens. A centralized identity provider is especially useful for apps that have worldwide users who don't necessarily sign in from the enterprise's network.
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