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Campus Experience: Pubcookie

Campus Experience: Pubcookie. University of Alabama at Birmingham Academic Computing Zach Garner. Overview. Interfacing with an Existing Enterprise Infrastructure Modifying Existing Applications Future Directions. Pre-requisites. Requirements:

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Campus Experience: Pubcookie

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  1. Campus Experience: Pubcookie University of Alabama at Birmingham Academic Computing ZachGarner

  2. Overview • Interfacing with an Existing Enterprise Infrastructure • Modifying Existing Applications • Future Directions

  3. Pre-requisites • Requirements: • Need a central, authoritative person directory • Follow eduPerson, LDAP Recipe & other NMI standards/practices • Directory is used for enterprise authentication (password assignment & resets)

  4. Interfacing with EnterpriseAuthentication • Pubcookie supports LDAP, Kerberos or UNIX style authentication • At UAB, authenticate off of central username/password (“BlazerID”) via LDAP • Password is protected • Type username/password into web browser • Passed to Pubcookie Login server over SSL • Use secure backchannel such as ldaps:// to directory

  5. Outcome • Initial sign-on once a day allows access to all pubcookie-protected campus web sites without logging in again

  6. Using Pubcookie • Install a pubcookie Apache or IIS module on each web server to be protected • Put protected information in a directory protected by this module • User’s attempts to access the URL • Pubcookie redirects them to login if they haven’t yet today; otherwise cookie credential is checked

  7. Uses for Pubcookie • UAB has used Pubcookie for: • Distributing software to members of the UAB community

  8. Pubcookie Limitations • All authenticated users are equal; useful for resources available to entire campus only • Library materials • Licensed software • Usually, the target population is smaller • Students in a particular school or class • Faculty, staff, students in School of Engineering

  9. Modifying Existing Applications • The Problem • Many Web Applications create their own authentication system • So, the user needs a username/password for each application • The Solution • Pubcookie-enable those applications to use centralized username/password

  10. Modifying Existing Applications • We Pubcookie-enabled two open source applications • Bugzilla (Written in Perl) • PHPWebsite (Written in PHP) • Similar changes were required for both applications

  11. Modifications • Remove old user login/password web form • Instead, Pubcookie authenticates the user • Authenticated users can proceed if they also have a Bugzilla or PHPwebsite account • Change behavior of “Log Out” and “Change Password” pages

  12. Future Directions • Modifying Pubcookie to support Client-Side SSL Certificates • Enables authentication of users without a user remembering username/password • Modifying Pubcookie to support PAM for the authentication mechanism • PAM is a standard system for flexibly using a large number of authentication systems.

  13. Resources • Linux implementation of PAM www.kernel.org/pub/linux/libs/pam/ • Bugzilla www.bugzilla.org • PHPWebsite http://phpwebsite.appstate.edu/

  14. David L. Shealy Jill Gemmill John-Paul Robinson Jason Lynn Kenn McCracken Zach Garner Ramesh Puljala Rajani Sadasivam Aditya Srinivasan Academic Computing

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