title: Difference between Claims vs OAuth
body: <p>What is the difference between Claims based authentication vs What is provided by OAuth.</p>
  
  <p>I am looking for conceptual difference and not technical difference. When do I choose Claims over OAuth and vice versa.</p>
  
  <p>Claims based authentication is proposed by Microsoft and build on top of WS-Security. But OAuth is more a open source protocol that is being proposed to allow fetching resources from different portals based on a security token.</p>
  
  <p>Claims also has this concept of token (SAML encoded or X509 certificates). </p>
  
  <p>I am trying to understand when do I choose Claims over OAuth and vice versa. </p>
  
  <p>Thanks</p>