title: CAS and SAML 2.0 Implementation in Java/Scala
body: <p>We have requirement on our project wherein we need to authenticate users using the client's CAS implementation over the SAML 2.0 protocol.</p>
  
  <p>We found a number of Apache Modules, which achieve this purpose, but we are using Nginx, and cannot use them.</p>
  
  <p>We also found a library called Pac4J which supports CAS with SAML 1.1, but it seems like it does not have support for SAML 2.0.</p>
  
  <p>If you have experiences or ideas with any such libraries, please let us know.</p>