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EuroCAMP 8may2008 Integration of N-tiers application Using CAS Single Sign On system with Horde webmail Jan Du Caju ICT security officer K.U.Leuven Belgium Jan.DuCaju@icts.KULeuven.be EuroCAMP 8may2008 Integration of N-tiers application


  1. EuroCAMP 8may2008 Integration of N-tiers application Using CAS Single Sign On system with Horde webmail Jan Du Caju ICT security officer K.U.Leuven Belgium Jan.DuCaju@icts.KULeuven.be

  2. EuroCAMP 8may2008 Integration of N-tiers application Using CAS Single Sign On system with Horde webmail context association K.U.Leuven N-tiers problem space Proxy CAS The gory details Future Conclusions Jan.DuCaju@icts.KULeuven.be

  3. EuroCAMP 8may2008 Integration of N-tiers application Using CAS Single Sign On system with Horde webmail context association K.U.Leuven N-tiers problem space Proxy CAS The gory details Future Conclusions Jan.DuCaju@icts.KULeuven.be

  4. EuroCAMP 8may2008 Introduction: context association K.U.Leuven � educational landscape reflects political situation association K.U.Leuven 1 university and 12 schools of higher education Need for resource sharing 2004: Shibboleth for institutional and inter-institutional web resources Jan.DuCaju@icts.KULeuven.be

  5. EuroCAMP 8may2008 Introduction: context association K.U.Leuven � Every institution of association K.U.Leuven has its own central AAI (Authentication and Authorization Infrastructure incl. Shibboleth IdP and CAS) Resources e-learning: Blackboard and other coupled education apps library: Ex Libris, and access to scientific papers, publications and databases work place context: intranet, webmail, groupware and inter-institutional offers research context: HPC et al administrative and organizational context: SAP Federations K.U.Leuven (institutional) Association K.U.Leuven K.U.Leuven - UZLeuven (university hospital) Not yet :-\ a national federation at NREN level (Belnet) Jan.DuCaju@icts.KULeuven.be

  6. EuroCAMP 8may2008 Integration of N-tiers application Using CAS Single Sign On system with Horde webmail context association K.U.Leuven N-tiers problem space Proxy CAS The gory details Future Conclusions Jan.DuCaju@icts.KULeuven.be

  7. EuroCAMP 8may2008 N-tiers problem space � imap server uid pw browser webmail Jan.DuCaju@icts.KULeuven.be

  8. EuroCAMP 8may2008 N-tiers problem space � imap server uid pw uid pw browser webmail Jan.DuCaju@icts.KULeuven.be

  9. EuroCAMP 8may2008 N-tiers problem space � Goal imap - Password does not pass application server - Secure (no caching of passwords, ...) - Single Sign-On uid pw uid pw browser webmail Jan.DuCaju@icts.KULeuven.be

  10. EuroCAMP 8may2008 CAS � Originally open-source WebISO developed by Yale University JA-SIG project since December 2004 Loosely based on Kerberos passwords are replaced by tickets ( ≈ one-time passwords) Server: Java & Spring framework Client: lots of implementations and libraries Jan.DuCaju@icts.KULeuven.be

  11. EuroCAMP 8may2008 CAS � CAS imap server server a trusted arbiter back-end service of authenticity proxy: service that wants to access other service on behalf of a particular user browser webmail Jan.DuCaju@icts.KULeuven.be

  12. EuroCAMP 8may2008 CAS � CAS imap server server browser webmail Jan.DuCaju@icts.KULeuven.be

  13. EuroCAMP 8may2008 CAS � CAS imap server server service S1=https://webmail.kuleuven.be S1 browser webmail Jan.DuCaju@icts.KULeuven.be

  14. EuroCAMP 8may2008 CAS � CAS imap server server login page browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  15. EuroCAMP 8may2008 CAS � CAS imap server server login uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  16. EuroCAMP 8may2008 CAS � CAS imap server server ST TGC service ticket ST Ticket Granting Cookie TGC uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  17. EuroCAMP 8may2008 CAS � CAS imap server server ST TGC verification of service ticket uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  18. EuroCAMP 8may2008 CAS � CAS imap server server ST TGC uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  19. EuroCAMP 8may2008 N-tiers problem space � CAS imap server server ST TGC ? uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  20. EuroCAMP 8may2008 Integration of N-tiers application using CAS Single Sign On system with Horde webmail context association K.U.Leuven N-tiers problem space Proxy CAS The gory details Future Conclusions Jan.DuCaju@icts.KULeuven.be

  21. EuroCAMP 8may2008 Proxy CAS � CAS imap server server ST TGC additional: Proxy Granting Ticket URL uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  22. EuroCAMP 8may2008 Proxy CAS � CAS imap server server ST TGC uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  23. EuroCAMP 8may2008 Proxy CAS � CAS imap PGTIOU PGT server server ST PGTIOU to correlate TGC PGT with uid uid pw PGT-URL browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  24. EuroCAMP 8may2008 Proxy CAS � CAS imap PGTIOU PGT server server ST TGC service S2=imap://imap.kuleuven.be S2 uid PGT pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  25. EuroCAMP 8may2008 Proxy CAS � PT Proxy Ticket CAS imap PGTIOU PGT server server ST TGC S2 uid PGT pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  26. EuroCAMP 8may2008 Proxy CAS � PT CAS imap PGTIOU PGT server server ST TGC S2 PT uid PGT uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  27. EuroCAMP 8may2008 Proxy CAS � S2 PT PT CAS imap PGTIOU PGT server server ST TGC S2 PT uid PGT uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  28. EuroCAMP 8may2008 Proxy CAS � uid S2 PT PT CAS imap PGTIOU PGT server server ST TGC S2 PT uid PGT uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  29. EuroCAMP 8may2008 Proxy CAS � uid S2 PT PT CAS imap PGTIOU PGT server server ST TGC S2 PT uid PGT uid pw browser S1 webmail Jan.DuCaju@icts.KULeuven.be

  30. EuroCAMP 8may2008 Integration of N-tiers application using CAS Single Sign On system with Horde webmail context association K.U.Leuven N-tiers problem space Proxy CAS The gory details Future Conclusions Jan.DuCaju@icts.KULeuven.be

  31. EuroCAMP 8may2008 The gory details � uid S2 PT PAM_CAS CAS imap server server persistent imap connection PT uid php imap CAS proxy browser webmail Jan.DuCaju@icts.KULeuven.be

  32. EuroCAMP 8may2008 The gory details � imap server PAM_CAS: exchange of tickets with CAS server Horde IMP webmail server - standard: Apache, php, Horde IMP - imap proxy: keeps an persistent imap connection mostly implemented for performance but has the additional advantage that there is no need for new PT (Proxy Ticket) for each request - phpCAS client: exchange of tickets with CAS server - ESUP glue-code to let phpCAS client & Proxy CAS communicate seamlessly with Horde IMP Jan.DuCaju@icts.KULeuven.be

  33. EuroCAMP 8may2008 Integration of N-tiers application Using CAS Single Sign On system with Horde webmail context association K.U.Leuven N-tiers problem space Proxy CAS The gory details Future Conclusions Jan.DuCaju@icts.KULeuven.be

  34. EuroCAMP 8may2008 Future K.U.Leuven needs calendar functionality moving from imap to MS Exchange Working proof-of-concept ADFS-enabled OWA (Outlook Web Access) integrated with our Shibboleth IdP Implementation: summer 2008 Jan.DuCaju@icts.KULeuven.be

  35. EuroCAMP 8may2008 Integration of N-tiers application Using CAS Single Sign On system with Horde webmail context association K.U.Leuven N-tiers problem space Proxy CAS The gory details Future Conclusions Jan.DuCaju@icts.KULeuven.be

  36. EuroCAMP 8may2008 Conclusion Integration of N-tiers applications - dependent on application - one possibility by means of Proxy CAS Credits URL’s Philip Brusten http://shib.kuleuven.be Jan Van der Velpen (CAS http://kuleuven.be/english developper) http://associatie.kuleuven.be/eng References http://www.ja-sig.org/cas http://esup-portal.org Jan.DuCaju@icts.KULeuven.be

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