Re: Canonicalizer that uses XML Schemas (rather than DTDs)?
Roger L. Costello wrote: > Why would it matter that a canonicalizer tool utilize an > XML Schema rather than a DTD? Where would it make a difference? Such a canonicalizer would be nonconformant to the XML canonicalization specification. It would not produce the specified result in many important cases. This would have downstream effects of breaking XML digital signatures. The purpose of canonicalization is not simply to normalize a document by removing its DTD and applying default attribute values. Canonicalization is intended to reproducibly create byte-per-byte identical binary data stream from equal XML documents, for a very precise definition of "equal". Changing the definition of "equal" pulls the legs out from under canonicalization. :-( -- Elliotte Rusty Harold elharo@m... XML in a Nutshell 3rd Edition Just Published! http://www.cafeconleche.org/books/xian3/ http://www.amazon.com/exec/obidos/ISBN=0596007647/cafeaulaitA/ref=nosim
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