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by Mikhail_Edoshin 2016 days ago
It looks intimidating, but it seems to me that most of what happens are standard XML operations. E.g. 1: read XML, 2: use XPath, 3: read element names, structure, and attributes, 4, some parts of: apply XPath or XSLT, if specified, 5: serialize XML (which implies whitespace treatment). Given that the authors of the standard considered the standard XML operations to be readily available, the cryptographic additions do not seem to be that complex.