Subject: Re: [e-lang] Commentary on "A State Transition Model of Trust Management and Access Control"

From: marcs <marcs@skyhunter.com> · Date: Tue, 3 Dec 2002 14:59:48 -0700

> When I met Dr. Mitchell at the Workshop on Information Security and Economics,
> he said that they had begun the project while under the impression that 
> capabilities were simply rows of the Lampson access matrix, and that doing the
> math had shown them that capabilities modelled as unforgeable references were
> not the same.  My suspicion is that at some point in writing the paper they 
> updated all the math, but accidentally left incorrect statements in the English
> prose.
> 
> At the time I wasn't familiar enough with the paper to effectively bring the 
> contradictions to Dr. Michell's attention.  (Instead I waved my arms 
> enthusiastically and said that POLA a la MarcS's story about trying out a text
> editor was really important.  He appeared to be interested in the idea.)

Zooko, does it make any sense for you to email Dr. Mitchell and bring him up 
to date on the discussion that has taken place on this thread? shap 

--marcs
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