W3C home > Mailing lists > Public > public-xmlsec@w3.org > September 2010

RE: X509IssuerSerial alternatives in WS Security specification

From: Scott Cantor <cantor.2@osu.edu>
Date: Tue, 14 Sep 2010 12:48:43 -0400
To: "'Pratik Datta'" <pratik.datta@oracle.com>, <public-xmlsec@w3.org>
Message-ID: <018401cb542c$b1913990$14b3acb0$@osu.edu>
> If you see, some of them build on XML Sig mechanisms e.g. IssuerSerial,
> some of them are different e.g. the SKI and direct, and some of them are
> e.g. Thumbprint. We need to have a Thumbprint equivalent in XML Sig.

I was going to propose that we deprecate X509IssuerSerial and leave it at
that, mainly because if we do a thumbprint, I think it probably needs to be
hash agile. Not so much for XML Signature's use, but the other places
KeyInfo gets used it isn't always a hint, but may normatively refer to a key
for the purposes of trust establishment.

That seems like a bigger change than we'd want to introduce for Last Call,
but if people want it, I can write it up.

I will propose deprecation text for X509IssuerSerial separately, as a
replacement for the "take care" text we have there now.

-- Scott
Received on Tuesday, 14 September 2010 16:49:18 UTC

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