draft-ietf-dnsext-dnssec-registry-update-04.txt   rfc6725.txt 
DNS Extensions Working Group S. Rose Internet Engineering Task Force (IETF) S. Rose
Internet-Draft NIST Request for Comments: 6725 NIST
Intended status: Standards Track August 3, 2012 Category: Standards Track August 2012
Expires: February 4, 2013 ISSN: 2070-1721
DNS Security (DNSSEC) DNSKEY Algorithm IANA Registry Updates DNS Security (DNSSEC) DNSKEY Algorithm IANA Registry Updates
draft-ietf-dnsext-dnssec-registry-update-04
Abstract Abstract
The DNS Security Extensions (DNSSEC) requires the use of The DNS Security Extensions (DNSSEC) require the use of cryptographic
cryptographic algorithm suites for generating digital signatures over algorithm suites for generating digital signatures over DNS data.
DNS data. The algorithms specified for use with DNSSEC are reflected The algorithms specified for use with DNSSEC are reflected in an
in an IANA maintained registry. This document presents a set of IANA-maintained registry. This document presents a set of changes
changes for some entries of the registry. for some entries of the registry.
Status of This Memo Status of This Memo
This Internet-Draft is submitted in full conformance with the This is an Internet Standards Track document.
provisions of BCP 78 and BCP 79.
Internet-Drafts are working documents of the Internet Engineering
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Internet-Drafts are draft documents valid for a maximum of six months This document is a product of the Internet Engineering Task Force
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material or to cite them other than as "work in progress." Internet Engineering Steering Group (IESG). Further information on
Internet Standards is available in Section 2 of RFC 5741.
This Internet-Draft will expire on February 4, 2013. 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/rfc6725.
Copyright Notice Copyright Notice
Copyright (c) 2012 IETF Trust and the persons identified as the Copyright (c) 2012 IETF Trust and the persons identified as the
document authors. All rights reserved. document authors. All rights reserved.
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described in the Simplified BSD License. described in the Simplified BSD License.
Table of Contents Table of Contents
1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 3 1. Introduction ....................................................2
2. The DNS Security Algorithm Numbers Sub-Registry .................2
2. The DNS Security Algorithm Number Sub-registry . . . . . . . . 3 2.1. Updates and Additions ......................................2
2.1. Updates and Additions . . . . . . . . . . . . . . . . . . . 3 2.2. DNS Security Algorithm Numbers Sub-Registry Table ..........3
2.2. Domain Name System (DNS) Security Algorithm Number 3. IANA Considerations .............................................4
Registry Table . . . . . . . . . . . . . . . . . . . . . . 4 4. Security Considerations .........................................4
5. Informative References ..........................................4
3. IANA Considerations . . . . . . . . . . . . . . . . . . . . . . 4
4. Security Considerations . . . . . . . . . . . . . . . . . . . . 5
5. Informative References . . . . . . . . . . . . . . . . . . . . 5
1. Introduction 1. Introduction
The Domain Name System (DNS) Security Extensions (DNSSEC, defined by The Domain Name System (DNS) Security Extensions (DNSSEC, defined by
[RFC4033], [RFC4034], [RFC4035], [RFC4509], [RFC5155], and [RFC5702]) [RFC4033], [RFC4034], [RFC4035], [RFC4509], [RFC5155], and [RFC5702])
use digital signatures over DNS data to provide source authentication use digital signatures over DNS data to provide source authentication
and integrity protection. DNSSEC uses an IANA registry to list codes and integrity protection. DNSSEC uses an IANA registry to list codes
for digital signature algorithms (consisting of an asymmetric for digital signature algorithms (consisting of an asymmetric
cryptographic algorithm and a one-way hash function). cryptographic algorithm and a one-way hash function).
This document updates a set of entries in the IANA registry for This document updates a set of entries in the IANA registry titled
Domain Name System Security (DNSSEC) Algorithm Numbers. These "DNS Security (DNSSEC) Algorithm Numbers". These updated entries are
updated entries are given in Section 2.2 below. This list includes given in Section 2.2 below. This list includes changes to selected
changes to selected entries originally set aside for future algorithm entries originally set aside for future algorithm specification that
specification that did not occur. These three entries are changed to did not occur. These three entries are changed to "Reserved" to
"Reserved" to avoid potential conflicts with older implementations. avoid potential conflicts with older implementations. This document
This document also brings the list of references for entries up to also brings the list of references for entries up to date.
date.
There are auxillary sub-registries related to the Domain Name System There are auxiliary sub-registries related to the DNS Security
Security (DNSSEC) Algorithm Numbers registry that deal with various (DNSSEC) Algorithm Numbers registry that deal with various Diffie-
Diffie-Hellman parameters used with DNSSEC. These registry tables Hellman parameters used with DNSSEC. These registry tables are not
are not altered by this document. altered by this document.
2. The DNS Security Algorithm Number Sub-registry 2. The DNS Security Algorithm Numbers Sub-Registry
The DNS Security Algorithm Number sub-registry (part of the Domain The DNS Security Algorithm Numbers sub-registry (part of the Domain
Name System (DNS) Security Number registry) contains a set of entries Name System Security (DNSSEC) Algorithm Numbers registry) contains a
that contain errors. There are additional differences to entries set of entries that contain errors. There are additional differences
that are described in sub-section 2.1 and the complete list of to entries that are described in Section 2.1, and the complete list
changed registry entries is in sub-section 2.2. of changed registry entries is in Section 2.2.
2.1. Updates and Additions 2.1. Updates and Additions
This document updates three entries in the Domain Name System This document updates three entries in the Domain Name System
Security (DNSSEC) Algorithm Registry. They are: Security (DNSSEC) Algorithm Numbers registry:
The description for assignment number 4 is changed to "Reserved". The description for assignment number 4 is changed to "Reserved".
The description for assignment number 9 is changed to "Reserved". The description for assignment number 9 is changed to "Reserved".
The description for assignment number 11 is changed to "Reserved". The description for assignment number 11 is changed to "Reserved".
The above entries are changed to "Reserved" because they were The above entries are changed to "Reserved" because they were
placeholders for algorithms that were not fully specified for use placeholders for algorithms that were not fully specified for use
with DNSSEC. Older implementations may still have these algorithm with DNSSEC. Older implementations may still have these algorithm
codes assigned, so these codes are reserved to prevent potential codes assigned, so these codes are reserved to prevent potential
incompatibilities. incompatibilities.
2.2. Domain Name System (DNS) Security Algorithm Number Registry Table 2.2. DNS Security Algorithm Numbers Sub-Registry Table
The list of Domain Name System (DNS) Security Algorithm Number The list of DNS Security Algorithm Numbers sub-registry entry changes
registry entry changes are given below. All other existing entries is given below. All other existing entries in the sub-registry table
in the registry table are unchanged by this document and are not are unchanged by this document and are not shown. The other two
shown. The other two tables in this registry (DNS KEY Record Diffie- sub-registries in the Domain Name System Security (DNSSEC) Algorithm
Hellman Prime Lengths and DNS KEY Record Diffie-Hellman Well-Known Numbers registry (DNS KEY Record Diffie-Hellman Prime Lengths and DNS
Prime/Generator Pairs) are not changed in any way by this document. KEY Record Diffie-Hellman Well-Known Prime/Generator Pairs) are not
changed in any way by this document.
Zone Trans. Zone Trans.
Number Description Mnemonic Sign Sign Reference Number Description Mnemonic Signing Sec. Reference
------ ----------- -------- ---- ------ --------- ------ ----------- -------- ------- --------- ---------
0 Reserved [RFC4034], 0 Reserved [RFC4034],
[RFC4398] [RFC4398]
1 RSA/MD5 RSAMD5 N Y [RFC3110], 1 RSA/MD5 RSAMD5 N Y [RFC3110],
(Deprecated, [RFC4034] (deprecated; [RFC4034]
see 5) see 5)
4 Reserved [THISDOC] 4 Reserved [RFC6725]
5 RSA/SHA-1 RSASHA1 Y Y [RFC3110] 5 RSA/SHA-1 RSASHA1 Y Y [RFC3110],
[RFC4034] [RFC4034]
9 Reserved [THISDOC] 9 Reserved [RFC6725]
11 Reserved [THISDOC] 11 Reserved [RFC6725]
15-122 Unassigned [RFC4034] 15-122 Unassigned
123-251 Reserved [RFC4034], 123-251 Reserved [RFC4034],
[RFC6014] [RFC6014]
253 private PRIVATEDNS Y Y [RFC4034]
253 private PRIVATEDNS Y Y [RFC4034]
algorithm algorithm
254 private PRIVATEOID Y Y [RFC4034]
254 private PRIVATEOID Y Y [RFC4034]
algorithm OID algorithm OID
3. IANA Considerations 3. IANA Considerations
This document updates a set of Domain Name System (DNS) Security This document updates a set of DNS Security Algorithm Numbers
Algorithm Numbers registry entries as given in Section 2.2. The sub-registry entries as given in Section 2.2. The changes include
changes include moving three registry entries to "Reserved" and moving three registry entries to "Reserved" and updating the
updating the reference list for entries. reference list for entries.
The original Domain Name System (DNS) Security Algorithm Number
registry is available at
http://www.iana.org/assignments/dns-sec-alg-numbers.
4. Security Considerations 4. Security Considerations
This document replaces the Domain Name System (DNS) Security This document updates the Domain Name System Security (DNSSEC)
Algorithm Numbers registry with an updated table. It is not meant to Algorithm Numbers registry. It is not meant to be a discussion on
be a discussion on algorithm superiority. No new security algorithm superiority. No new security considerations are raised in
considerations are raised in this document. this document.
5. Informative References 5. Informative References
[RFC3110] Eastlake, D., "RSA/SHA-1 SIGs and RSA KEYs in the Domain [RFC3110] Eastlake, D., "RSA/SHA-1 SIGs and RSA KEYs in the Domain
Name System (DNS)", RFC 3110, May 2001. Name System (DNS)", RFC 3110, May 2001.
[RFC4033] Arends, R., Austein, R., Larson, M., Massey, D., and S. [RFC4033] Arends, R., Austein, R., Larson, M., Massey, D., and S.
Rose, "DNS Security Introduction and Requirements", Rose, "DNS Security Introduction and Requirements",
RFC 4033, March 2005. RFC 4033, March 2005.
 End of changes. 25 change blocks. 
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