Internet Engineering Task Force (IETF)                         J. Schaad
Request for Comments: 8411                                August Cellars
Category: Informational                                       R. Andrews
ISSN: 2070-1721                                           DigiCert, Inc.
                                                             August 2018


                         IANA Registration for
          the Cryptographic Algorithm Object Identifier Range

Abstract

   When the Curdle Security Working Group was chartered, a range of
   object identifiers was donated by DigiCert, Inc. for the purpose of
   registering the Edwards Elliptic Curve key agreement and signature
   algorithms.  This donated set of OIDs allowed for shorter values than
   would be possible using the existing S/MIME or PKIX arcs.  This
   document describes the donated range and the identifiers that were
   assigned from that range, transfers control of that range to IANA,
   and establishes IANA allocation policies for any future assignments
   within that range.

Status of This Memo

   This document is not an Internet Standards Track specification; it is
   published for informational purposes.

   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).  Not all documents
   approved by the IESG are candidates for any level of Internet
   Standard; see Section 2 of RFC 7841.

   Information about the current status of this document, any errata,
   and how to provide feedback on it may be obtained at
   https://www.rfc-editor.org/info/rfc8411.

Copyright Notice

   Copyright (c) 2018 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
   (https://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.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   4.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   4
     4.1.  Normative References  . . . . . . . . . . . . . . . . . .   4
     4.2.  Informative References  . . . . . . . . . . . . . . . . .   4
   Acknowledgments . . . . . . . . . . . . . . . . . . . . . . . . .   4
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   5

1.  Introduction

   When the Curdle Security Working Group was chartered, a range of
   object identifiers was donated to the working group by DigiCert, Inc.
   The use of these object identifiers allowed for the Edwards Elliptic
   Curve key agreement [RFC7748] and signature [RFC8032] algorithms to
   be defined with encodings that are smaller than similar ones would be
   if assigned from the existing S/MIME or PKIX arcs.  The initial
   registrations from this arc were made while developing [RFC8410].
   After those registrations were made, there were still some unused
   values that could be used by other security groups.

   Object identifiers are primarily used with Abstract Syntax Notation
   (ASN.1) [ASN.1].  The ASN.1 specifications continue to evolve, but
   object identifiers can be used with any and all versions of ASN.1.

   This document describes the object identifiers that were assigned in
   that donated range, transfers control of the range to IANA, and
   establishes IANA allocation policies for any future assignments.

   The donated range from DigiCert, Inc. is as follows:

   first: { iso (1) identified-organization (3) thawte (101) 100 }
   last: { iso (1) identified-organization (3) thawte (101) 127 }

2.  IANA Considerations

   IANA has created the "SMI Security for Cryptographic Algorithms"
   registry within the SMI-numbers registry.  The new registry has three
   columns, as shown below.

     +------------+-------------------------------+-----------------+
     | Decimal    | Description                   | References      |
     +------------+-------------------------------+-----------------+
     | 0-99       | Retained by DigiCert          | RFC 8411        |
     | 100        | Reserved for child reg        | RFC 8411        |
     | 110        | id-X25519                     | [RFC8410]       |
     | 111        | id-X448                       | [RFC8410]       |
     | 112        | id-EdDSA25519                 | [RFC8410]       |
     | 113        | id-EdDSA448                   | [RFC8410]       |
     | 114        | Reserved for id-EdDSA25519-ph | [SAFE-X.509-03] |
     | 115        | Reserved for id-EdDSA448-ph   | [SAFE-X.509-03] |
     | 128 and up | Retained by DigiCert          | RFC 8411        |
     +------------+-------------------------------+-----------------+

            Table 1: SMI Security for Cryptographic Algorithms

   The registration policy is "Specification Required" as defined in
   [RFC8126].

   The column 'Decimal' is required to be a number between 100 and 127
   inclusive.

   The value of 100 has been reserved so that a new arc below that point
   can be established in the future (i.e., starting at 1.3.101.100.1).
   If the new child registry is established, a name for this value is to
   be assigned at that point.  The experts can, at their discretion,
   assign an algorithm OID instead.

3.  Security Considerations

   This document populates an IANA registry, and it raises no new
   security considerations.  The protocols that specify these values
   include the security considerations associated with their usage.

4.  References

4.1.  Normative References

   [ASN.1]    ITU-T, "Information Technology - Abstract Syntax Notation
              One (ASN.1): Specification of basic notation", ITU-T
              Recommendation X.680, ISO/IEC 8824-1, August 2015.

4.2.  Informative References

   [RFC7748]  Langley, A., Hamburg, M., and S. Turner, "Elliptic Curves
              for Security", RFC 7748, DOI 10.17487/RFC7748, January
              2016, <https://www.rfc-editor.org/info/rfc7748>.

   [RFC8032]  Josefsson, S. and I. Liusvaara, "Edwards-Curve Digital
              Signature Algorithm (EdDSA)", RFC 8032,
              DOI 10.17487/RFC8032, January 2017,
              <https://www.rfc-editor.org/info/rfc8032>.

   [RFC8126]  Cotton, M., Leiba, B., and T. Narten, "Guidelines for
              Writing an IANA Considerations Section in RFCs", BCP 26,
              RFC 8126, DOI 10.17487/RFC8126, June 2017,
              <https://www.rfc-editor.org/info/rfc8126>.

   [RFC8410]  Josefsson, S. and J. Schaad, "Algorithm Identifiers for
              Ed25519, Ed448, X25519, and X448 for Use in the Internet
              X.509 Public Key Infrastructure", RFC 8410,
              DOI 10.17487/RFC8410, August 2018.

   [SAFE-X.509-03]
              Josefsson, S. and J. Schaad, "Algorithm Identifiers for
              Ed25519, Ed448, X25519 and X448 for use in the Internet
              X.509 Public Key Infrastructure", Work in Progress,
              draft-ietf-curdle-pkix-03, November 2016.

Acknowledgments

   Our thanks go out to DigiCert for donating the range of OIDs covered
   in this document.  At the time of the donation, the root of the range
   was assigned to Symantec but has since been transferred to DigiCert.

   This document uses a lot of text from a similar document by Russ
   Housley.  Copying always makes things easier and less error prone.

Authors' Addresses

   Jim Schaad
   August Cellars

   Email: ietf@augustcellars.com


   Rick Andrews
   DigiCert, Inc.

   Email: rick.andrews@digicert.com