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.
Updated to use ReSpec.js
Updated to Version 1.1, updated date and version links. Updated editor information to add Magnus Nyström and Kelvin Yiu as editors.
Updated to reflect status of 1.1 version.
Add subsections to section 3.5 for key derivation.
Add subsections to section 5 for algorithm subsections.
Split Section 10, References, into Normative and Informative reference subsections.
Update to Acknowledgements
EncryptedType ElementFixed typo, "descendants"
CipherReference ElementClarified that the syntax of URI and Transforms is defined in XML Signature.
EncryptedKey ElementFixed typos, "inherited", "unambiguous"
DerivedKey elementAdded new subsection describing this new
ds:KeyInfo child.
Added the following:
KeyDerivationMethod optional element, DerivedKeyName optional
element, and Id attribute.EncryptionProperties elementAdded section for EncryptionProperties Element identifier.
Refactored 4.1-4.4 to clarify what parts of the processing
model are normative and what aren't; adding Type
parameter for EXI; adding processing for EXI.
Added text regarding consensus issues on mandatory to implement algorithms
Added AES-128|192|256-pad key wrap mechanisms as OPTIONAL.
Changed SHA-1 to REQUIRED, but DISCOURAGED.
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, ConcatKDF as REQUIRED, PBKDF2 as OPTIONAL.
Added Key Agreements, Diffie-Hellman Key Agreement (Ephemeral-Static mode) with Legacy Key Derivation Function and explicit Key Derivation Functions as Optional, and Elliptic Curve Diffie-Hellman (Ephemeral-Static mode) as REQUIRED,
Fixed typo, "refer"
New section added defining two key derivation algorithms, ConcatKDF and PBKDF2.
Updated RFC 2437 to RFC 3447. Adjusted section reference appropriately.
Added CipherValue to CipherData example.
Updated RFC 2437 to RFC 3447. Adjusted section references appropriately.
Added paragraph on declaration of Key derivation algorithms
using xenc11:KeyDerivationMethod using
the xenc:AgreementMethodType.
Updated example to
include KeyDerivationMethod.
Moved identifier from this section to new section on legacy KDF, section 5.6.2.2.
Modified discussion to include use of KDF to produce secret key using explicit or legacy KDFs.
Clarified implementation requirements.
New section describing explicit key deriviation functions.
New section containing identifier and original material for KDF described in previous version of XML Encryption. Clarified implementation requirement.
New section defining ECDH key value URI and use.
New section defining ECDH-ES key agreement algorithm URI and use.
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.
Section 5.7.3: Changed reference from DRAFT-HOUSLEY-KW-PAD to AES-WRAP-PAD to match changed tag associated with RFC publication.
Added text to explain reason for discouraging use of SHA-1.
Removed REQUIRED for SHA1.
Changed RECOMMENDED to REQUIRED for SHA256.
Added new section for SHA384.
Section deleted as per resolution on WG call 200900602.
Added XML Canonicalization 1.1 (both omitting and with comments)
Fixed typos, "initialization", "resistance"
Fixed typo, "exercises"
Added XML Encryption 1.1 XSD Schema instance
Removed "Examples" from section title.
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 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 IACR.org).
Updated the following references to reflect final publication: AES-WRAP, SHA, XML-DSIG, XMLDSIG11, Glossary, MIME-REG, and UTF-8.
Replaced reference DRAFT-HOUSLEY-KW-PAD with AES-WRAP-PAD now that the reference has been published as RFC 5649.
Added web link for ANSI X9.52.
Removed the old XML Signature reference, retaining only reference for Signature 1.1, naming it XML-DSIG.
Added informative reference to ANSI X9.44-2007.
Reformatted and sorted by using ReSpec.js bibliography tool (updated common bibliography)