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Internet X.509 Public Key Infrastructure: Additional Algorithms and Identifiers for DSA and ECDSA
RFC 5758

Document type: RFC - Proposed Standard (January 2010; Errata)
Updates RFC 3279
Document stream: IETF
Last updated: 2013-03-02
Other versions: plain text, pdf, html

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

IESG State: RFC 5758 (Proposed Standard)
Responsible AD: Pasi Eronen
Send notices to: pkix-chairs@tools.ietf.org, draft-ietf-pkix-sha2-dsa-ecdsa@tools.ietf.org

Internet Engineering Task Force (IETF)                           Q. Dang
Request for Comments: 5758                                          NIST
Updates: 3279                                               S. Santesson
Category: Standards Track                                   3xA Security
ISSN: 2070-1721                                              K. Moriarty
                                                                     EMC
                                                                D. Brown
                                                          Certicom Corp.
                                                                 T. Polk
                                                                    NIST
                                                            January 2010

               Internet X.509 Public Key Infrastructure:
        Additional Algorithms and Identifiers for DSA and ECDSA

Abstract

   This document updates RFC 3279 to specify algorithm identifiers and
   ASN.1 encoding rules for the Digital Signature Algorithm (DSA) and
   Elliptic Curve Digital Signature Algorithm (ECDSA) digital signatures
   when using SHA-224, SHA-256, SHA-384, or SHA-512 as the hashing
   algorithm.  This specification applies to the Internet X.509 Public
   Key infrastructure (PKI) when digital signatures are used to sign
   certificates and certificate revocation lists (CRLs).  This document
   also identifies all four SHA2 hash algorithms for use in the Internet
   X.509 PKI.

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/rfc5758.

Dang, et al.                 Standards Track                    [Page 1]
RFC 5758                        DSA/ECDSA                   January 2010

Copyright Notice

   Copyright (c) 2010 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.

Table of Contents

   1. Introduction ....................................................2
   2. Hash Functions ..................................................3
   3. Signature Algorithms ............................................3
      3.1. DSA Signature Algorithm ....................................4
      3.2. ECDSA Signature Algorithm ..................................4
   4. ASN.1 Module ....................................................5
   5. Security Considerations .........................................6
   6. References ......................................................6
      6.1. Normative References .......................................6
      6.2. Informative References .....................................7
   7. Acknowledgements ................................................7

1.  Introduction

   This specification defines the contents of the signatureAlgorithm,
   signatureValue, and signature fields within Internet X.509
   certificates and CRLs when these objects are signed using DSA or
   ECDSA with a SHA2 hash algorithm.  These fields are more fully
   described in RFC 5280 [RFC5280].  This document also identifies all
   four SHA2 hash algorithms for use in the Internet X.509 PKI.

   This document profiles material presented in the "Secure Hash
   Standard" [FIPS180-3], "Public Key Cryptography for the Financial
   Services Industry: The Elliptic Curve Digital Signature Standard
   (ECDSA)" [X9.62], and the "Digital Signature Standard" [FIPS186-3].

   This document updates RFC 3279 [RFC3279] Sections 2.1, 2.2.2, and
   2.2.3.  Note that RFC 5480 [RFC5480] updates Sections 2.3.5, 3 (ASN.1
   Module), and 5 (Security Considerations) of RFC 3279.

Dang, et al.                 Standards Track                    [Page 2]
RFC 5758                        DSA/ECDSA                   January 2010

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