XML Encryption
XML Encryption (XML-Enc) is a specification governed by a World Wide Web Consortium (W3C) recommendation, that defines how to encrypt the contents of an XML element. == Specification == Although XML Encryption can be used to encrypt any kind of data, it is nonetheless known as "XML Encryption" because an XML element (either an EncryptedData or EncryptedKey element) contains or refers to the cipher text, keying information, and algorithms.