The digital library of Paris-Dauphine University is based on Dspace 1.5.2. The authentication method is a single sign-on CAS and was showed on http://dspace.2283337.n4.nabble.com/dspace-Patches-2812747-CAS-Single-Sign-On-Authentication-with-DSpace-1-5-1-td3288541.html. Now we are upgrading Dspace version to version 1.7.2. I would like to share the CAS solution tested on Dspace 1.7.2. The solution is in the patch attached in this issue.