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Subject: Re: [ebxml-msg] Schema problem with encryption in the AS4 draft

Hi Theo,

Can you please tell me what the exact validation error message was and 
what validation tool produced it. The reason I ask is that I want to 
make sure we do not have a similar problem in the ebXML RegRep 4.0 specs 
that are being submitted for public review soon. Thanks in advance for 
your help.

On 05/17/2011 05:08 AM, Theo Kramer wrote:
> I have received the following from Mike O'Connell (senior developer) involved in implementing our AS4 light client and adapting our MSH for AS4 support.
> The server has strict XML Schema validation ON and this has raised a question (and a number of exceptions):
> The WSS 1.1 spec allows for arbitrary XML elements to be encrypted and signed however the ebMS schema ('ebms-header-3_0-200704.xsd') does not.
> The only element that allows for insertion of the 'wsu:id' attribute is 'eb:Messaging' since it has the 'headerExtension' attribute (which allows for 'xsd:anyAttribute'), 'wsu:id' is the ID reference used when applying WSS1.1 security to arbitrary elements.
> Now - I cannot encrypt the entire 'eb:Messaging' element because of the following from AS4-profile draft and in reference to ebMS v3.0, Section 7.4:
> AS4 MSH implementations are(sic) SHALL NOT encrypt the eb:PartyInfo section of the eb:Messaging header. Other child elements of the eb:Messaging header MAY be encrypted or left unencrypted as defined by trading partner agreements or collaboration profiles.
> The only way to bypass this issue is to turn XML Schema validation OFF, which defeats the whole purpose of XML Schema in the first place.
> Your comments/input on this appreciated...

Farrukh Najmi

Web: http://www.wellfleetsoftware.com

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