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Q. about 'DOM-Hash-total'

hash total
Hi all!

A question concerning security, I hop it is 'on topic' for this list ...

Recently I have been playing around a bit with the Security Suite from
IBM-Alphaworks called XSS4J. One of the tools I tested was the GetDigest
method. This method gives you a kind of hash-total of a DOM object.

Now as I understood, whitespace is insignificant, provided there is DTD to
specify to the Parser that there aren't any mixed content elements.
Yet the following two documents yield different hash-totals, can anybody
explain why?

Document 1:

<!DOCTYPE foo SYSTEM "E:\My Documents\xml\voorbeelden\DOMHash\foobar.dtd">

Document 2:

<!DOCTYPE foo SYSTEM "E:\My Documents\xml\voorbeelden\DOMHash\foobar.dtd">


<!ELEMENT foo (bar)>


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