Design and Implementation of a File Transfer and Web Services Guard Employing Cryptographically Secured XML Security Labels

This publication introduces the concept of cryptographically secured, extensible markup language (XML) based security labels, which either globally label any non-XML electronic document, or label individual sections of an XML infoset. It further describes the architecture and construction of a guard prototype for file transfer and Web services based applications. This prototype employs the XML security labels to verify information classification prior to releasing information across a security domain boundary separating enclaves belonging to different security domains. If necessary, XML infosets containing information at multiple security levels can be redacted by the guard filtering algorithms to create a releasable subset of the original XML infoset or document