[cap-talk] network level designation and authorization

Marc Stiegler marcs at skyhunter.com
Wed Jun 7 20:06:44 EDT 2006


> 
> would an easy to use virtual private networking toolkit provide the
> best network level designation / authorization mechanism?

No. VPNs as normally defined are terrible authorization mechanisms: you 
are either inside, with all the authority, or outside, with none of the 
authority. To achieve pola, every individual entity should have access 
to exactly the least number of objects "inside" as they need, regardless 
of whether the user is "inside" or "outside". Of course, if every 
individual receives exactly pola authorities, it makes a mockery of the 
very concept of "inside" versus "outside". Inside and outside become 
particularly silly concept for Alice, who needs access to 2 files inside 
Bob's firewall, and 1 web page and a database view inside  Carol's firewall.

--marcs



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