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LCWD: Canonical EXI

From: Notifier <notifier@aries.w3.org>
Date: Thu, 21 May 2015 14:14:18 +0000
Canonical EXI



Any EXI document is part of a set of EXI documents that are logically equivalent within an application context, but which vary in physical representation based on differences permitted by the [Efficient XML Interchange (EXI) Format 1.0 (Second Edition)]. This specification describes a relatively simple method for generating a physical representation, the canonical form, of an EXI document that accounts for the permissible changes. An example of the applications targeted by this specification is one that needs to guarantee non-repudiation using XML Signature yet allows certain flexibility for intermediaries to reconstitute the documents before they reach final destination without breaking the signatures. Note that two documents may have differing canonical forms yet still be equivalent in a given context based on more elaborate application-specific equivalence rules which is out of scope of this specification.

Status of the Document

This section describes the status of this document at the time of its publication. Other documents may supersede this document. A list of current W3C publications and the latest revision of this technical report can be found in the W3C technical reports index at http://www.w3.org/TR/.

This is the Last Call Public Working Draft of the Canonical EXI specification. It is intended for review by W3C members and other interested parties. The Working Group intends to advance this specification to W3C Recommendation status. The steps and algorithms described in this document are considered stable at the time of this writing.

Feedback is welcome on the document content as well as on any other relevant topic. Please send comments about this document to the public-exi-comments@w3.org mailing list ( Archives ). The Last Call review period for this document extends until 16 July 2015.

This document has been produced by the Efficient XML Interchange Working Group as part of the W3C XML Activity. The goals of the Efficient XML Interchange (EXI) Format are discussed in the Efficient XML Interchange (EXI) Format 1.0 document. The authors of this document are the members of the Efficient XML Interchange Working Group.

Publication as a Last Call Working Draft does not imply endorsement by the W3C Membership. This is a draft document and may be updated, replaced or obsoleted by other documents at any time. It is inappropriate to cite this document as other than work in progress.

This document was produced by a group operating under the 5 February 2004 W3C Patent Policy. W3C maintains a public list of any patent disclosures made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains Essential Claim(s) must disclose the information in accordance with section 6 of the W3C Patent Policy.

This document is governed by the 14 October 2005 W3C Process Document.
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