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Diffie-Hellman Proof-of-Possession Algorithms
RFC 6955

Document type: RFC - Proposed Standard (May 2013)
Obsoletes RFC 2875
Was draft-schaad-pkix-rfc2875-bis (individual in sec area)
Document stream: IETF
Last updated: 2013-05-29
Other versions: plain text, pdf, html

IETF State: (None)
Consensus: Unknown
Document shepherd: No shepherd assigned

IESG State: RFC 6955 (Proposed Standard)
IANA Review State: IANA - Review Needed
IANA Action State: No IC
Responsible AD: Sean Turner
IESG Note: Peter Yee (peter@akayla.com) is the Document Shepherd.
Send notices to: draft-schaad-pkix-rfc2875-bis@tools.ietf.org

Internet Engineering Task Force (IETF)                         J. Schaad
Request for Comments: 6955                       Soaring Hawk Consulting
Obsoletes: 2875                                        H. Prafullchandra
Category: Standards Track                                  HyTrust, Inc.
ISSN: 2070-1721                                                 May 2013

             Diffie-Hellman Proof-of-Possession Algorithms

Abstract

   This document describes two methods for producing an integrity check
   value from a Diffie-Hellman key pair and one method for producing an
   integrity check value from an Elliptic Curve key pair.  This behavior
   is needed for such operations as creating the signature of a Public-
   Key Cryptography Standards (PKCS) #10 Certification Request.  These
   algorithms are designed to provide a Proof-of-Possession of the
   private key and not to be a general purpose signing algorithm.

   This document obsoletes RFC 2875.

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/rfc6955.

Schaad & Prafullchandra      Standards Track                    [Page 1]
RFC 6955                    DH POP Algorithms                   May 2013

Copyright Notice

   Copyright (c) 2013 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.

   This document may contain material from IETF Documents or IETF
   Contributions published or made publicly available before November
   10, 2008.  The person(s) controlling the copyright in some of this
   material may not have granted the IETF Trust the right to allow
   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
   it for publication as an RFC or to translate it into languages other
   than English.

Schaad & Prafullchandra      Standards Track                    [Page 2]
RFC 6955                    DH POP Algorithms                   May 2013

Table of Contents

   1. Introduction ....................................................3
      1.1. Changes since RFC 2875 .....................................4
      1.2. Requirements Terminology ...................................5
   2. Terminology .....................................................5
   3. Notation ........................................................5
   4. Static DH Proof-of-Possession Process ...........................6
      4.1. ASN.1 Encoding .............................................8
   5. Discrete Logarithm Signature ...................................11
      5.1. Expanding the Digest Value ................................11
      5.2. Signature Computation Algorithm ...........................12
      5.3. Signature Verification Algorithm ..........................13
      5.4. ASN.1 Encoding ............................................14
   6. Static ECDH Proof-of-Possession Process ........................16
      6.1. ASN.1 Encoding ............................................18
   7. Security Considerations ........................................20
   8. References .....................................................21
      8.1. Normative References ......................................21
      8.2. Informative References ....................................21
   Appendix A. ASN.1 Modules .........................................23
     A.1. 2008 ASN.1 Module ..........................................23
     A.2. 1988 ASN.1 Module ..........................................28

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