> In my current project, I am working with XML data in a protocol that has > checksum/signature verification of a portion of the document. > ... > the server sends me XML with empty elements as full open/close tags, > but toxml() serializes them to the XML empty element (<Element/>), so > the checksum winds up not matching.
(This is a horrible response to your question, so I apologize in advance.) Does it even make sense to use a checksum to verify XML, since there are basically[1] infinite ways to validly write equivalent XML data? I would think the only way that a checksum would be a viable way to verify a document is if you had some sort of standard normalized format, and made sure the data was normalized both before you computed and before you calculated the checksum. That way, you would be sure that, for instance, all insignificant whitespace was removed and all empty elements were represented uniformly. Again, I'm sorry because I didn't provide any real useful information, I just tried to poke holes in your current project. Will. [1] Unless all of your whitespace is significant -- http://mail.python.org/mailman/listinfo/python-list
