Algorithm Requirements Update to the Internet X.509 Public Key Infrastructure Certificate Request Message Format (CRMF)
draft-ietf-lamps-crmf-update-algs-04

Document Type Active Internet-Draft (lamps WG)
Author Russ Housley 
Last updated 2021-03-05 (latest revision 2021-02-19)
Replaces draft-housley-lamps-crmf-update-algs
Stream Internent Engineering Task Force (IETF)
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Document shepherd Tim Hollebeek
Shepherd write-up Show (last changed 2021-02-19)
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Network Working Group                                         R. Housley
Internet-Draft                                            Vigil Security
Updates: 4211 (if approved)                             19 February 2021
Intended status: Standards Track                                        
Expires: 23 August 2021

     Algorithm Requirements Update to the Internet X.509 Public Key
        Infrastructure Certificate Request Message Format (CRMF)
                  draft-ietf-lamps-crmf-update-algs-04

Abstract

   This document updates the cryptographic algorithm requirements for
   the Password-Based Message Authentication Code in the Internet X.509
   Public Key Infrastructure Certificate Request Message Format (CRMF)
   specified in RFC 4211.

Status of This Memo

   This Internet-Draft is submitted in full conformance with the
   provisions of BCP 78 and BCP 79.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF).  Note that other groups may also distribute
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   This Internet-Draft will expire on 23 August 2021.

Copyright Notice

   Copyright (c) 2021 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
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   Please review these documents carefully, as they describe your rights
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   provided without warranty as described in the Simplified BSD License.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
   2.  Terminology . . . . . . . . . . . . . . . . . . . . . . . . .   2
   3.  Signature Key POP . . . . . . . . . . . . . . . . . . . . . .   2
   4.  Password-Based Message Authentication Code  . . . . . . . . .   3
     4.1.  Introduction Paragraph  . . . . . . . . . . . . . . . . .   3
     4.2.  One-Way Function  . . . . . . . . . . . . . . . . . . . .   3
     4.3.  Iteration Count . . . . . . . . . . . . . . . . . . . . .   4
     4.4.  MAC Algorithm . . . . . . . . . . . . . . . . . . . . . .   4
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   5
   6.  Security Considerations . . . . . . . . . . . . . . . . . . .   6
   7.  Acknowledgements  . . . . . . . . . . . . . . . . . . . . . .   6
   8.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   6
     8.1.  Normative References  . . . . . . . . . . . . . . . . . .   6
     8.2.  Informative References  . . . . . . . . . . . . . . . . .   7
   Author's Address  . . . . . . . . . . . . . . . . . . . . . . . .   8

1.  Introduction

   This document updates the cryptographic algorithm requirements for
   the Password-Based Message Authentication Code (MAC) in the Internet
   X.509 Public Key Infrastructure Certificate Request Message Format
   (CRMF) [RFC4211].  The algorithms specified in [RFC4211] were
   appropriate in 2005; however, these algorithms are no longer
   considered the best choices.  This update specifies algorithms that
   are more appropriate today.

2.  Terminology

   The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
   "SHOULD", "SHOULD NOT", "RECOMMENDED", "NOT RECOMMENDED", "MAY", and
   "OPTIONAL" in this document are to be interpreted as described in
   BCP 14 [RFC2119] [RFC8174] when, and only when, they appear in all
   capitals, as shown here.

3.  Signature Key POP

   Section 4.1 of [RFC4211] specifies the Proof-of-Possession (POP)
   processing.  This section is updated to explicitly allow the use of
   the PBMAC1 algorithm presented in Section 7.1 of [RFC8018].

   OLD:

      algId identifies the algorithm used to compute the MAC value.  All
      implementations MUST support id-PasswordBasedMAC.  The details on
      this algorithm are presented in section 4.4

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   NEW:

      algId identifies the algorithm used to compute the MAC value.  All
      implementations MUST support id-PasswordBasedMAC as presented in
      Section 4.4 of this document.  Implementations MAY also support
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