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Group Management Tool

Group Management Tool. Lukas Haemmerle haemmerle@switch.ch. Situation. Web application/files/functions that must be protected Access/authorization shall be based on user groups Overhead for group administration shall be small Shibboleth/Other solution available Users have an AAI account

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Group Management Tool

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  1. Group Management Tool Lukas Haemmerle haemmerle@switch.ch

  2. Situation • Web application/files/functions that must be protected • Access/authorization shall be based on user groups • Overhead for group administration shall be small • Shibboleth/Other solution available • Users have an AAI account Real life example: The slides/photos of this meeting shall only be accessible by all people who attended the meeting.

  3. Case 1: Users share common attributes Access Rule HomeOrg = IdP X| IdP Y| IdP Z Affiliation = Student StudyBranch = Medicine

  4. Case 2: No common user attributes How can these users be authorized?

  5. Solution 1: Create a common attribute • Add an entitlement attribute for specific users Access Rule Require entitlement urn:mace:rediris.es:entitlement:wiki:jra5 + • Easy solution for a difficult problem • Additional work for user directory administrator • Difficult to efficiently manage many entitlement values • Only IdP admin can manage access -

  6. Solution 2.a: Use uniqueIDs or email • Get unique IDs or AAI email addresses of users. • Create access rules like: Access Rule require uniqueID 465@idp-x.ch 234@idp-y.ch […] require email hans.muster@idpx.ch pierre.m@idpz.ch […] + • Straight-forward solution • SP administrator must know unique ID/Email address • Difficult to efficiently manage for many users/apps • Only SP admin can manage access -

  7. Solution 2.b: Use SWITCH GMT 0.9 • Open Source software (BSD license) • Easy to install • Light-weight PHP application • Human readable text files to store group data Features • Manage multiple groups for multiple applications • Three user/admin roles with different privileges • Transfer privileges to other users • Invite new users to join group via email • User can request to join a group (self-registration) • Generate authorization files (Apache .htaccess) • API for use on remote hosts

  8. Administration interface • Every role has different options and views • Red groups are system groups

  9. Group settings

  10. Manage a group

  11. Adding users to a group • Add registered users to one or more groups with a certain role

  12. Inviting new users • Invitation token (link) is sent to provided email addresses • Tokens can be revoked

  13. Request to join a group

  14. Generate authorization files • Multiple authorization files can be generated per group • Files are updated automatically on changes

  15. Authorization files

  16. Interface for remote hosts • PHP/PERL functions: • isInGroup($uniqueID, $gName) • getGroupModifyURL($gName) • getUserGroups($uniqueID) • getStatus() • getError() • Secure queries: • Over SSL • Encrypted with shared key • Limited to allowed hosts

  17. Summary and outlook • Summary • Convenient management of “virtual” groups • Roles can be transferred • Users can request to join a group with self-registration • Authorize users on remote servers • Libraries available for PHP and Perl • Preliminary outlook for GMT 1.0 • Generation of Shibboleth XML authorization files • Additional API functions with SOAP/REST • Probably new name (e.g. “grot”, “groupy”, …) http://www.switch.ch/aai/gmt

  18. Questions Q & A http://www.switch.ch/aai aai@switch.ch

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