David,
On 2004 Oct 4 , at 13.07, David Berry wrote:
>> - single signon -- limited IVOA attention. `Shibboleth' appears
>> to be gaining juggernaut status
>
> Would you care to unpack this statement???
Ah, right. A little opaque, there.
`Single signon' is the idea that one will be able to use and access
multiple grid resources -- compute servers, databases or MySpace
servers, for example -- which are distinct geographically and
organisationally, without having to provide dozens of different
username/password pairs. Instead you will have a `single signon', and
it is this single identity which will gain you access to these
resources.
The particle physicists have something here, but the IVOA hasn't really
thought about it at all. This is a complicated problem, not least
because any solution would probably have to interoperate with a variety
of local solutions, for example, campus-wide authentication systems
unconnected with any grid. There are multiple potential systems, one
of which, Shibboleth, appears to be the one that will prevail, on the
grounds that it is the one that everyone _thinks_ will prevail.
Norman
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Norman Gray : Physics & Astronomy, Glasgow University, UK
http://www.astro.gla.ac.uk/users/norman/ : www.starlink.ac.uk
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