On 21-Feb-06, at 9:26 PM, Dave Crocker wrote:
1. What problem does DIX solve and for whom? How is the problem
currently manifest?
2. What does a basic scenario for using DIX look like? That is,
who are the typical actors and what are their typical interactions,
for a single, "complete" use of DIX?
I'll write some scenarios that illustrate the problems being solved,
which
should answer both these questions.
3. From the summary, I cannot tell what the actual "identity" is,
where it comes from, and whether or how it is assured uniqueness.
Well, 'identity' is a bit of a philosophical term. Perhaps it is
simpler to deal
with an 'identifier'. But, your question relates to implementation
issues,
rather than design requirements.
In the implementation detailed in dmd0 the identifier is a defined to be
a URI, and a URL mechanism is detailed whereby a Delegation Tag is
placed in the page at the end of the URL that delegates authentication
to a list of Homesites. So, where it comes from is essentially a web
server,
and its uniqueness is based on its reuse of the domain namespace.
John
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