This chapter talks about some concepts, such as claims and federated identity, that may sound new to you. However, many of these ideas have been around for a long time. The mechanics involved in a claims-based approach have a similar flavor to Kerberos, which is one of the most broadly accepted authentication protocols in use today and is also the protocol used by Microsoft® Active Directory® directory service. Federation protocols such as WS-Federation and the Security Assertion Markup Language (SAML) have been with us for many years as interoperable protocols that are implemented on all major technology platforms.
Claims-based identity isn’t new. It’s been in use for almost a decade.