Schema centric canonicalization - Need and status

• From: Josseline <anders.rundgren@telia.com>
• Date: Wed, 16 Nov 2005 16:17:14 +0100 (MET)
• To: w3c-ietf-xmldsig@w3.org
• Message-ID: <33396598.1132154234245.JavaMail.tomcat@pne-ps4-sn2>

Hi,
I'm working with standard for "Web Signing" [*].  In this work XML 
Schemas has been used extensively and together with XML DSig.

However, it seems that not even exclusive canonicalization is really 
fit for the task as it is not designed for schema-defined instance 
documents.  At least default attributes seems to break the current 
canonicalization algorithms.

Essentially I have two options.  Cripple schemas or invent a new 
algorithm.

None of these alternatives appear very tempting but I'm leaning 
towards the latter as the "patch" needed is fairly small.

Comments?

Anders Rundgren

*] The ability to in a browser sign a transation request or a static 
document, presented by a service provider.

Received on Wednesday, 16 November 2005 15:17:22 UTC