Input format to Transform

[Manveen Kaur <Manveen.Kaur@Sun.COM>]

Comments on SwA CD [1]

The Attachment-Complete Transform needs to operate on attachment content 
and MIME Headers. Currently, the SwA draft [1] does not identify how the 
such dereferenced information (both content and MIME header information) 
needs to be provided to the transform as input.

The xml-dsig spec [2] says that input to a transform should be a nodeset 
or octet-stream and all other information needs to be provided as 
transformation parameters.

Quoting the relevant piece from xml-dsig core [2] (section 4.3.3.4):

'Some Transforms may require explicit MIME type, charset (IANA 
registered "character set"), or other such information concerning the 
data they are receiving from an earlier Transform or the source data, 
although no Transform algorithm specified in this document needs such 
explicit information. Such data characteristics are provided as 
parameters to the Transform algorithm and should be described in the 
specification for the algorithm.'

There should be a  standard input format to the Attachment-Complete 
Transform.

Regards,
--Manveen

[1] 
http://www.oasis-open.org/apps/org/workgroup/wss/download.php/10902/wss-swa-profile-1.0-cd-01.pdf 


[2] http://www.w3.org/TR/xmldsig-core/