Extensible Markup Language Evidence Record Syntax (XMLERS)
RFC 6283
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RFC - Proposed Standard
(July 2011; No errata)
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Last updated |
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2015-10-14
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IETF
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plain text
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WG Document
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No shepherd assigned
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IESG state |
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RFC 6283 (Proposed Standard)
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Consensus Boilerplate |
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Unknown
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Responsible AD |
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Tim Polk
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Carl Wallace is the document sheperd
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(None)
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Internet Engineering Task Force (IETF) A. Jerman Blazic
Request for Comments: 6283 S. Saljic
Category: Standards Track SETCCE
ISSN: 2070-1721 T. Gondrom
July 2011
Extensible Markup Language Evidence Record Syntax (XMLERS)
Abstract
In many scenarios, users must be able to demonstrate the (time of)
existence, integrity, and validity of data including signed data for
long or undetermined periods of time. This document specifies XML
syntax and processing rules for creating evidence for long-term non-
repudiation of existence and integrity of data. The Extensible
Markup Language Evidence Record Syntax XMLERS provides alternative
syntax and processing rules to the ASN.1 (Abstract Syntax Notation
One) ERS (Evidence Record Syntax) (RFC 4998) syntax by using XML.
Status of This Memo
This is an Internet Standards Track document.
This document is a product of the Internet Engineering Task Force
(IETF). It represents the consensus of the IETF community. It has
received public review and has been approved for publication by the
Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
Information about the current status of this document, any errata,
and how to provide feedback on it may be obtained at
http://www.rfc-editor.org/info/rfc6283.
Copyright Notice
Copyright (c) 2011 IETF Trust and the persons identified as the
document authors. All rights reserved.
This document is subject to BCP 78 and the IETF Trust's Legal
Provisions Relating to IETF Documents
(http://trustee.ietf.org/license-info) in effect on the date of
publication of this document. Please review these documents
carefully, as they describe your rights and restrictions with respect
to this document. Code Components extracted from this document must
include Simplified BSD License text as described in Section 4.e of
the Trust Legal Provisions and are provided without warranty as
described in the Simplified BSD License.
Blazic, et al. Standards Track [Page 1]
RFC 6283 XMLERS July 2011
Table of Contents
1. Introduction ....................................................3
1.1. Motivation .................................................3
1.2. General Overview and Requirements ..........................4
1.3. Terminology ................................................6
1.4. Conventions Used in This Document ..........................7
2. Evidence Record .................................................7
2.1. Structure ..................................................8
2.2. Generation ................................................12
2.3. Verification ..............................................13
3. Archive Time-Stamp .............................................13
3.1. Structure .................................................13
3.1.1. Hash Tree ..........................................13
3.1.2. Time-Stamp .........................................14
3.1.3. Cryptographic Information List .....................15
3.2. Generation ................................................16
3.2.1. Generation of Hash Tree ............................17
3.2.2. Reduction of Hash Tree .............................19
3.3. Verification ..............................................21
4. Archive Time-Stamp Sequence and Archive Time-Stamp Chain .......22
4.1. Structure .................................................23
4.1.1. Digest Method ......................................23
4.1.2. Canonicalization Method ............................24
4.2. Generation ................................................25
4.2.1. Time-Stamp Renewal .................................25
4.2.2. Hash Tree Renewal ..................................26
4.3. Verification ..............................................27
5. Encryption .....................................................28
6. Version ........................................................29
7. Storage of Policies ............................................30
8. XSD Schema for the Evidence Record .............................30
9. Security Considerations ........................................34
9.1. Secure Algorithms .........................................34
9.2. Redundancy ................................................34
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