[talks] S Sevinc preFPO
Melissa M. Lawson
mml at CS.Princeton.EDU
Thu Mar 1 14:36:34 EST 2012
Soner Sevinc will present his preFPO on Thursday March 8 at 9AM in Room 402.
The members of his committee are: Larry Peterson, advisor; Jennifer Rexford
and Andy Bavier, readers; David Walker and Michael Freedman, nonreaders.
Everyone is invited to attend his talk. His abstract follows below.
Discovering and authorizing resources dispersed across autonomous organizations is a
challenge for federations as they scale. We introduce a delegation logic for federation to
address the problem of authentication and authorization in large scale. A Federation Policy
Language (FPL) is used to express this logic, and allows expression of custom security and
allocation policies. One distinguishing feature of FPL is that it utilizes a DHT for storage/retrieval
of certificates to increase fault-tolerance, efficiency and expressivity in proof constructions.
Our contract based discovery and allocation system, CODAL, performs policy-driven peer discovery
and collaborative resource discovery/allocation to address two problems: (1) participants in a
federation can be unknown, and (2) their resource information and policies can be private.
We evaluate our design in PlanetLab, emulating a realistic federation based on PlanetLab usage logs.
Results show that our system is capable of discovering and allocating resources in a large scale federation,
fulfilling a request from tens of organizations. We also show allocation policies are successfully
enforced by our language,and explore run-time characteristics of the FPL proof construction process,
and investigate certificate retrieval in terms of time and incurred system load.
-------------- next part --------------
An HTML attachment was scrubbed...
More information about the talks