Re: [security-services] The multiple subject issue

From
Stephen Farrell <>
Date
2002-01-31T17:47:48+00:00
ID
Thread
Re: [security-services] The multiple subject issue
Phill,

> > 3) Let s1 = <Subject><n-i=fred/></Subject> and
> > s2 = <Subject><n-i=fred/><s-c=fred-cert/></Subject> (i.e. s2
> > is s1 with the addition of a SubjectConfirmation). Now, when
> > do I consider s1=s2 and when not? E.g. if I send you an
> > AuthenticationQuery containing s1 and you send me back an
> > assertion containing s2, is that ok? In this case I've no
> > suggested answer, since I don't believe I understand the
> > consequences well enough - maybe someone else does?
> 
> You may consider the two to be equivalent for the purposes of the
> assertion only. So for example it is quite likely that you have a
> name-identifier that may be ambiguous.

The above is about as clear as the current spec on this issue
(i.e. not clear enough). I still have no way to know what checks 
are supposed to be made by my code, e.g. if I ask an authority 
for an authentication assertion for fred and it replies with 
one about bill, how can I (write code to) detect that?

Stephen.

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