Remove deprecated GOST algorithms from active use within DNSSEC
draft-ietf-dnsop-must-not-ecc-gost-01

Network Working Group                                        W. Hardaker
Internet-Draft                                                   USC/ISI
Intended status: Standards Track                               W. Kumari
Expires: 6 April 2025                                             Google
                                                          3 October 2024

    Remove deprecated GOST algorithms from active use within DNSSEC
                 draft-ietf-dnsop-must-not-ecc-gost-01

Abstract

   This document retires the use of ECC-GOST within DNSSEC.

Status of This Memo

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   This Internet-Draft will expire on 6 April 2025.

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Table of Contents

   1.  Introduction  . . . . . . . . . . . . . . . . . . . . . . . .   2
     1.1.  Requirements notation . . . . . . . . . . . . . . . . . .   2
   2.  Deprecating ECC-GOST algorithms in DNSSEC . . . . . . . . . .   2
   3.  Security Considerations . . . . . . . . . . . . . . . . . . .   3
   4.  Operational Considerations  . . . . . . . . . . . . . . . . .   3
   5.  IANA Considerations . . . . . . . . . . . . . . . . . . . . .   3
   6.  References  . . . . . . . . . . . . . . . . . . . . . . . . .   3
     6.1.  Normative References  . . . . . . . . . . . . . . . . . .   3
     6.2.  Informative References  . . . . . . . . . . . . . . . . .   4
   Appendix A.  Acknowledgments  . . . . . . . . . . . . . . . . . .   4
   Appendix B.  Current algorithm usage levels . . . . . . . . . . .   4
   Appendix C.  Github Version of this document  . . . . . . . . . .   4
   Authors' Addresses  . . . . . . . . . . . . . . . . . . . . . . .   5

1.  Introduction

   The use of the GOST R 34.10-2001 and GOST R 34.11-94 algorithms with
   the DNS Security Extensions (DNSSEC) [RFC9364] was documented in
   [RFC5933].  These two algorithms were deprecated by the Orders of the
   Federal Agency for Technical Regulation and Metrology of Russia
   (Rosstandart) in August 2012, and were superseded by GOST 34.10-2012
   and GOST 34.11-2012 respectively.  The use of GOST 34.10-2012 and
   GOST 34.11-2012 in DNSSEC is documented in [RFC9558], and so
   [RFC5933] has been made Historic.

   Thus, the use of GOST R 34.10-2001 (mnemonic GOST-ECC) and and GOST R
   34.11-94 is no longer recommended for use in DNSSEC [RFC9364].

   Note that this document does not change or discuss the use of GOST
   34.10-2012 and GOST 34.11-2012.

1.1.  Requirements notation

   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.

2.  Deprecating ECC-GOST algorithms in DNSSEC

   The GOST R 34.11-94 [RFC5933] algorithm MUST NOT be used when
   creating DS records.  Validating resolvers MUST treat GOST R 34.11-94
   DS records as insecure.  If no other DS records of accepted
   cryptographic algorithms are available, the DNS records below the
   delegation point MUST be treated as insecure.

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   The ECC-GOST [RFC5933] algorithm MUST NOT be used when creating
   DNSKEY and RRSIG records.  Validating resolvers MUST treat RRSIG
   records created from DNSKEY records using these algorithms as an
   unsupported algorithm.  If no other RRSIG records of accepted
   cryptographic algorithms are available, the validating resolver MUST
   consider the associated resource records as Insecure.

3.  Security Considerations

   This document increases the security of the DNSSEC ecosystem by
   deprecating algorithms that make use of older algorithms with ECC-
   GOST derived uses.

4.  Operational Considerations

   Zone owners currently making use of ECC-GOST based algorithms should
   immediate switch to algorithms with stronger cryptographic strengths.
   DNS registries [RFC9499] should prohibit their clients to upload and
   publish ECC-GOST based DS records.

5.  IANA Considerations

   IANA is requested to set the "Use for DNSSEC Signing", "Use for
   DNSSEC Validation", "Implement for DNSSEC Signing", and "Implement
   for DNSSEC Validation" columns of the DNS Security Algorithm Numbers
   registry [DNSKEY-IANA] for ECC-GOST (23) to MUST NOT.  Note that
   previously the "Use for DNSSEC Signing" and "Implement for DNSSEC
   Delegation" columns were already MUST NOT.

   IANA is requested to set the "Use for DNSSEC Delegation", "Use for
   DNSSEC Validation", "Implement for DNSSEC Delegation", and "Implement
   for DNSSEC Validation" columns of the "Digest Algorithms" registry
   [DS-IANA] for GOST R 34.11-94 (3) to MUST NOT.  Note that previously
   the "Use for DNSSEC Signing" and "Implement for DNSSEC Delegation"
   columns were already MUST NOT.

6.  References

6.1.  Normative References

   [DNSKEY-IANA]
              IANA, "Domain Name System Security (DNSSEC) Algorithm
              Numbers", n.d., <https://www.iana.org/assignments/dns-sec-
              alg-numbers/dns-sec-alg-numbers.xhtml>.

   [DS-IANA]  IANA, "Delegation Signer (DS) Resource Record (RR) Type
              Digest Algorithms", n.d.,
              <http://www.iana.org/assignments/ds-rr-types>.

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   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119,
              DOI 10.17487/RFC2119, March 1997,
              <https://www.rfc-editor.org/rfc/rfc2119>.

   [RFC5933]  Dolmatov, V., Ed., Chuprina, A., and I. Ustinov, "Use of
              GOST Signature Algorithms in DNSKEY and RRSIG Resource
              Records for DNSSEC", RFC 5933, DOI 10.17487/RFC5933, July
              2010, <https://www.rfc-editor.org/rfc/rfc5933>.

   [RFC9364]  Hoffman, P., "DNS Security Extensions (DNSSEC)", BCP 237,
              RFC 9364, DOI 10.17487/RFC9364, February 2023,
              <https://www.rfc-editor.org/rfc/rfc9364>.

6.2.  Informative References

   [RFC8174]  Leiba, B., "Ambiguity of Uppercase vs Lowercase in RFC
              2119 Key Words", BCP 14, RFC 8174, DOI 10.17487/RFC8174,
              May 2017, <https://www.rfc-editor.org/rfc/rfc8174>.

   [RFC9499]  Hoffman, P. and K. Fujiwara, "DNS Terminology", BCP 219,
              RFC 9499, DOI 10.17487/RFC9499, March 2024,
              <https://www.rfc-editor.org/rfc/rfc9499>.

   [RFC9558]  Makarenko, B. and V. Dolmatov, Ed., "Use of GOST 2012
              Signature Algorithms in DNSKEY and RRSIG Resource Records
              for DNSSEC", RFC 9558, DOI 10.17487/RFC9558, April 2024,
              <https://www.rfc-editor.org/rfc/rfc9558>.

Appendix A.  Acknowledgments

   The authors appreciate the comments and suggestions from the
   following IETF participants in helping produce this document: Mark
   Andrews, Brian Dickson, Paul Wouters and the many members of the
   DNSOP working group that discussed this draft.

Appendix B.  Current algorithm usage levels

   The DNSSEC scanning project by Viktor Dukhovni and Wes Hardaker
   highlights the current deployment of various algorithms on the
   https://stats.dnssec-tools.org/ website.

   <RFC Editor: please delete this section upon publication>

Appendix C.  Github Version of this document

   While this document is under development, it can be viewed, tracked,
   fill here:

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   https://github.com/hardaker/draft-hardaker-dnsop-must-not-gost

Authors' Addresses

   Wes Hardaker
   USC/ISI
   Email: ietf@hardakers.net

   Warren Kumari
   Google
   Email: warren@kumari.net

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