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Subject: Items to fix in the ebCPPA 2.1 spec
All, Looking at the signing of ebXML CPA's we came across two issues we think need to be fixed in the next ebXML CPPA spec. 1) Section 9.9.1.1 Signature Generation There is a list with 4 items. The last item (line 3144) tells to add the Signature following the last PartyInfo. That is not correct. The CPPA XML Schema defines to add Signatures after the Packaging and before the Comment. 2) Samples in the ebCPPA spefication version 2.0 that show elements from the Digital Signature namespace have prefixes for the attributes. XML Schema validating [1] a CPA that is signed and has attributes of the digital signature namespace being prefixed fails. The Digital Signature XML Schema does not include a "attributeFormDefault" attribute which implies that the attributes must not be prefixed. So we think all the samples in the CPA that show ds:Reference elements etc are not valid. wrong: <ds:Reference ds:URI="abc"> ... </ds:Reference> correct: <ds:Reference URI="abc"> ... </ds:Reference> Digitally signed ebXML Messages also do not have the prefixes for the Digital Signature namespaced elements attributes. Kind regards Sacha Schlegel [1] using Java 1.5 and xerces-j
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