ietf-mxcomp
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Re: What Meng said

2004-08-17 09:57:28

Tripp,

TC> A policy for authorizing a given message to be transported by a given 
TC> agent cannot be sufficiently expressed by a single domain in many 
TC> cases.  The PRA "algorithm" is a means to derive a single pointer to an 
TC> expression of policy.  As such, the chances that a receiver can 

1. The underlying problem that you are reacting to has to do with having
the entity that is posting a message be the one to authorize the path
the message follows.

2. What PRA does is to formalize a reality: there is only one entity
that did the latest posting of the message.  All of the other fields
that might be present and refer to a poster refer to entities that are
not relevant to the CURRENT transmission.


d/
--
 Dave Crocker <dcrocker-at-brandenburg-dot-com>
 Brandenburg InternetWorking <www.brandenburg.com>
 Sunnyvale, CA  USA <tel:+1.408.246.8253>


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