2006-03-20 Apache XML Security Java Library implementing XML Digital Signature Specification & XML Encryption Specification Java 1.3 2005-10-23 1.3 XML-Signature Syntax and Processing W3C XML Signature XML-Signature Syntax and Processing IETF 3275 Canonical XML W3C Canonical XML Exclusive XML Canonicalization W3C Exclusive XML Canonicalization XML Encryption Syntax and Processing W3C Exclusive XML Encryption