After Section 15.1 introduces XML Encryption, Section 15.2 describes its detailed syntax and Section 15.3 gives some examples of this encryption scheme. You can read Sections 15.2 and 15.3 in either order, depending on whether you prefer to learn first from examples or from detailed specifications.
Section 15.4 provides the processing rules for cipher text generation and decryption.
Section 15.5 describes a number of warning and security considerations in the use of XML Encryption.
This chapter is based on the XML Encryption Syntax and Processing W3C Working Draft [XMLENC]. When this book went to press, that draft was in Last Call by the XML Encryption Working Group [XMLENC WG].