[cap-talk] Concrete comparable use cases

Mark Miller erights at gmail.com
Tue Mar 18 23:57:04 EDT 2008


On Tue, Mar 18, 2008 at 6:31 PM, Pierre THIERRY
<nowhere.man at levallois.eu.org> wrote:
>  For example, to the best of my knowledge, no mainstream ACL system has
>  to deal with chains of delegation. [...]

Hi Pierre, I think these are excellent points, and I agree. SPKI does
handle delegation chains. It does by means that lie somewhere between
the ACL and ocap paradigms.


>  Has there been any published comparisons of the merits of ACL and cap
>  systems in the context of identical use cases, or assessments of the
>  costs and gains of use cases of cap systems that are impossible in ACL
>  systems?

Not that I'm aware of.


>  I have that idea of a paper where an ocap web system would be
>  implemented along with a similar ACL one (in terms of features and
>  security). Then you show how to add extensions to the system. And then
>  you show what code is needed to make changes in the security policy.

I you can find comparisons that ring true to both sides -- such that
neither feels the deck was stacked -- that would make for a wonderful
paper. Please try!

-- 
Text by me above is hereby placed in the public domain

 Cheers,
 --MarkM


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