Changes in XML Encryption Syntax and Processing (1.1 Editors Draft)


Frederick Hirsch <>

Magnus Nyström <>


$Date: 2009/07/14 08:58:22 $

Status of this Document

This document summarizes the changes that the XML Security Working Group has made to the XML Encryption Syntax and Processing Specification in preparing a proposed 1.1.

Discussion of Changes

Cover page

Updated to Version 1.1, updated date and version links. Updated editor information to add Magnus Nyström as editor,

Table of Contents

Add subsections to section 3.5 for key derivation.

Add subsections to section 5 for algorithm subsections.

3.5.2 The DerivedKey element

Added new subsection describing this new ds:KeyInfo child.

4.1 Encryption

Added key derivation as an option (step 2)

4.2 Decryption

Added key derivation as an option (step 2)

5.1 Algorithm Identifiers and Implementation Requirements

Added AES-128|192|256-pad key wrap mechanisms as OPTIONAL.


Changed SHA-256 to REQUIRED

Added SHA-384 as OPTIONAL

Added Canonical XML 1.1 (omit comments) as OPTIONAL

Added Canonical XML 1.1 with comments as OPTIONAL

Removed Message Authentication (not normative)

Added key derivation algorithms.

5.4 Key Derivation

New section added defining two key derivation algorithms.

5.6 Symmetric Key Wrap

Revised introduction paragraph and description for clarity.

Removed Section 5.6.1 - Checksums - as it was not required after making the change to 5.6.2 and 5.6.3 (see below).

Removed detailed, step-by-step description of Triple-DES key wrap from (what used to be) 5.6.2, replaced with reference to IETF RFC 3217.

Removed detailed, step-by-step description of AES key wrap from (what used to be) 5.6.3, replaced with reference to RFC 3397.

5.7 Message Digest

Added text to explain reason for discouraging use of SHA-1.

5.8 Message Authentication

Section deleted as per resolution on WG call 900602.

5.9 Canonicalization

Added XML Canonicalization 1.1 (both omitting and with comments)

10 References

Split references section into normative and informative sections.

Added links for references

Updated SHA reference to FIPS-186-3

Updated XML Signature reference to XML Signature 1.1

Updated Glossary RFC 2828 to RFC 4949

Added Media Types RFC 3023 update to MIME-REG RFC 2048 reference

Updated UTF-8 RFC 2279 to RFC 3629

Updated URI RFC 3406 to RFC 3986

Updated X509v3 from ISO/IEC 9594-8:1997 to 9594-8:2001, added link

Updated RFC 1750 to RFC 4086

Updated RFC 2396 to RFC 3986

Updated RFC 2437 to RFC 3447

Updated Draft-Houseley-KW-PAD reference to pad-03

Updated Reference for FIPS-186-3 to reflect final publication.

Added reference to recent work on SHA-1 analysis (to be changed once paper appears on

**Updated the following references to reflect final publication: AES-WRAP, DRAFT-HOUSLEY-KW-PAD, SHA, XML-DSIG, XMLDSIG11, Glossary, MIME-REG, and UTF-8.

**Added web link for ANSI X9.52.

**Removed the old XML Signature reference, retaining only reference for Signature 1.1, naming it XML-DSIG.