XML Security
Robert Richards · Apress eBooks · 2006
PHP 5 provides many mechanisms to deal with XML documents. Applications can take advantage of the tree-based parsers (DOM and SimpleXML) and the stream-based parsers (xml and XMLReader), as well as document transformations using XSL. Processing, although one of the primary tasks for an application, is just one aspect that you need to consider when writing XML-based applications. Security and authentication of the data are often important as well. This chapter will cover some standards and methods you can use to provide support for XML encryption and digital signatures in documents.