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RE: C14N Argument

From: Joseph M. Reagle Jr. <reagle@w3.org>
Date: Fri, 27 Jul 2001 17:28:44 -0400
Message-Id: <>
To: "Dournaee, Blake" <bdournaee@rsasecurity.com>
Cc: "'w3c-ietf-xmldsig@w3.org'" <w3c-ietf-xmldsig@w3.org>
At 17:24 7/27/2001, Dournaee, Blake wrote:
>"Canonicalization is used implicitly when a node-set is converted to an
>octet stream in the transformation pipeline. Care should be made not to
>include it unnecessarily as an explicit transform. Doing so may affect core
>processing performance."

Hrmm... I don't want to encourage not using it explicitly. If I have a

   <Transform Algorithm="&xpath;">some Xpath</Transform>
   <Transform Algorithm="$c14n;"/>

Then exactly 1 canonicalization was done, the explicit one. (Could you given 
an example of a mistaken double c14n (implicit/explicit)?)

Joseph Reagle Jr.                 http://www.w3.org/People/Reagle/
W3C Policy Analyst                mailto:reagle@w3.org
IETF/W3C XML-Signature Co-Chair   http://www.w3.org/Signature
W3C XML Encryption Chair          http://www.w3.org/Encryption/2001/
Received on Friday, 27 July 2001 17:28:50 UTC

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