Key Discovery In DTP Draft 3

Recordon, David drecordon at
Fri Jan 5 17:49:54 UTC 2007

True, though why not still use this XML structure and the
"RetrievalMethod" element within the XRDS so that can then point to a
remote "KeyInfo" element in another XML document?


-----Original Message-----
From: grant.monroe at [mailto:grant.monroe at] On Behalf
Of Grant Monroe
Sent: Friday, January 05, 2007 8:31 AM
To: Recordon, David
Cc: Carl Howells; specs at
Subject: Re: Key Discovery In DTP Draft 3

On 1/4/07, Recordon, David <drecordon at> wrote:
> Hey guys,
> Was looking at
> tonight and curious why the decision was made to define the <PublicKey

> /> element which contains a link to the RSA key or X.509 certificate 
> versus embedding the key in the XRDS file?

I believe the rational was that KeyInfo objects can be quite large.
Especially if you have multiple services using them. We were concerned
about XRDSs getting really large. It doesn't make a whole lot of sense
to download a key for a service entry you aren't even interested in.

 Grant Monroe
 JanRain, Inc.

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