Internet Engineering Task Force (IETF) R. Housley
Request for Comments: 7036 Vigil Security
Category: Informational October 2013
ISSN: 2070-1721
Object Identifier Registry for the
Long-Term Archive and Notary Services (LTANS) Working Group
Abstract
When the Long-Term Archive and Notary Services (LTANS) working group
was chartered, an object identifier arc was set aside for use by that
working group. This document describes the object identifiers that
were assigned, and it establishes IANA allocation policies for any
future assignments within that arc.
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 a candidate for any level of Internet
Standard; see 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/rfc7036.
Copyright Notice
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Table of Contents
1. Introduction ....................................................2
2. Subordinate Object Identifier Arcs ..............................2
3. Module Identifiers ..............................................3
4. CMS Content Types ...............................................4
5. ERS Encryption Methods ..........................................4
6. Security Considerations .........................................4
7. IANA Considerations .............................................4
7.1. SMI Security for Mechanism Codes Registry ..................5
7.2. SMI Security for LTANS Registry ............................5
7.3. SMI Security for LTANS Module Identifier Registry ..........5
7.4. SMI Security for LTANS CMS Content Type Registry ...........6
7.5. SMI Security for LTANS ERS Encryption Method Registry ......6
8. References ......................................................6
8.1. Normative References .......................................6
8.2. Informative References .....................................7
9. Acknowledgements ................................................7
1. Introduction
When the Long-Term Archive and Notary Services (LTANS) working group
was chartered, an object identifier arc was set aside for use by that
working group. These object identifiers are primarily used with
Abstract Syntax Notation One (ASN.1) [ASN1-88] [ASN1-97].
The LTANS object identifier arc is:
id-ltans OBJECT IDENTIFIER ::= { iso(1) identified-organization(3)
dod(6) internet(1) security(5)
mechanisms(5) ltans(11) }
This document describes the object identifiers that were assigned,
and it establishes IANA allocation policies for any future
assignments within that arc.
2. Subordinate Object Identifier Arcs
Three subordinate object identifier arcs were used. The first arc,
id-mod, was used to assign ASN.1 module identifiers. The second arc,
id-ct, was used to assign Cryptographic Message Syntax (CMS) content
types. The third arc, id-em, was set aside for Evidence Record
Syntax (ERS) encryption methods.
id-mod OBJECT IDENTIFIER ::= { id-ltans 0 }
id-ct OBJECT IDENTIFIER ::= { id-ltans 1 }
id-em OBJECT IDENTIFIER ::= { id-ltans 2 }
3. Module Identifiers
The Evidence Record Syntax (ERS) [RFC4998] includes two ASN.1
modules. Both modules define the same syntax, but one module uses
the 1997 ASN.1 syntax, and the other module uses the 1988 ASN.1
syntax. These module identifiers are:
id-mod-ers OBJECT IDENTIFIER ::= { id-mod 1 }
id-mod-ers-v1 OBJECT IDENTIFIER ::= { id-mod 1 1 }
id-mod-ers88 OBJECT IDENTIFIER ::= { id-mod 2 }
id-mod-ers88-v1 OBJECT IDENTIFIER ::= { id-mod 2 1 }
The Long-term Archive Protocol (LTAP) [LTAP] includes two ASN.1
modules. While this protocol was never published as an RFC, the
module identifiers were assigned to facilitate implementation. Both
modules define the same syntax, but one module uses the 1997 ASN.1
syntax, and the other module uses the 1988 ASN.1 syntax. These
module identifiers are:
id-mod-ltap88 OBJECT IDENTIFIER ::= { id-mod 3 }
id-mod-ltap88-v0 OBJECT IDENTIFIER ::= { id-mod 3 0 }
id-mod-ltap88-v1 OBJECT IDENTIFIER ::= { id-mod 3 1 }
id-mod-ltap OBJECT IDENTIFIER ::= { id-mod 4 }
id-mod-ltap-v0 OBJECT IDENTIFIER ::= { id-mod 4 0 }
id-mod-ltap-v1 OBJECT IDENTIFIER ::= { id-mod 4 1 }
The document that describes the conventions for using the Server-
Based Certificate Validation Protocol (SCVP) to convey Long-Term
Evidence Records [RFC5276] includes one ASN.1 module. The module
identifier is:
id-mod-ers-scvp OBJECT IDENTIFIER ::= { id-mod 5 }
id-mod-ers-scvp-v1 OBJECT IDENTIFIER ::= { id-mod 5 1 }
The Data Structure for the Security Suitability of Cryptographic
Algorithms (DSSC) [RFC5698] includes two ASN.1 modules. Both modules
define the same syntax, but one module uses the 1997 ASN.1 syntax,
and the other module uses the 1988 ASN.1 syntax. These module
identifiers are:
id-mod-dssc88 OBJECT IDENTIFIER ::= { id-mod 6 }
id-mod-dssc88-v1 OBJECT IDENTIFIER ::= { id-mod 6 1 }
id-mod-dssc OBJECT IDENTIFIER ::= { id-mod 7 }
id-mod-dssc-v1 OBJECT IDENTIFIER ::= { id-mod 7 1 }
4. CMS Content Types
A CMS content type for an Evidence Record was reserved, but no
specification points to this value. It remains reserved.
id-ct-evidence-record OBJECT IDENTIFIER ::= { id-ct 1 }
The Data Structure for the Security Suitability of Cryptographic
Algorithms (DSSC) [RFC5698] specifies three CMS content types. These
CMS content types are:
id-ct-dssc-asn1 OBJECT IDENTIFIER ::= { id-ct 2 }
id-ct-dssc-xml OBJECT IDENTIFIER ::= { id-ct 3 }
id-ct-dssc-tbsPolicy OBJECT IDENTIFIER ::= { id-ct 6 }
The Long-term Archive Protocol (LTAP) [LTAP] defines two CMS content
types. While this protocol was never published as an RFC, the CMS
content types were assigned to facilitate implementation. These CMS
content types are:
id-ct-LTAPRequest OBJECT IDENTIFIER ::= { id-ct 4 }
id-ct-LTAPResponse OBJECT IDENTIFIER ::= { id-ct 5 }
5. ERS Encryption Methods
An arc was set up for Evidence Record Syntax (ERS) encryption
methods, and one object identifier was assigned. However, that
object identifier is obsolete, and it should not be used.
id-em-enveloped-data OBJECT IDENTIFIER ::= { id-em 1 } -- obsolete
6. 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.
7. IANA Considerations
IANA has updated one registry table and created four additional
tables.
Updates to the four new tables require Expert Review, as defined in
[RFC5226]. The Designated Expert is expected to ensure that any new
values are strongly related to the work that was done by the LTANS
WG. Object identifiers for other purposes should not be assigned in
this arc.
7.1. SMI Security for Mechanism Codes Registry
The reference in the Long-Term Archive and Notary Services entry
(decimal value 11) has been updated so that it points to this
document.
7.2. SMI Security for LTANS Registry
Within the SMI-numbers SMI Security Codes registry, IANA has added an "SMI
Security for LTANS (1.3.6.1.5.5.11)" table with three columns:
Decimal Description References
------- ---------------------- ----------
0 module-identifiers [RFC7036]
1 cms-content-types [RFC7036]
2 ers-encryption-methods [RFC7036]
Future updates to this table require Expert Review, as defined in
[RFC5226].
7.3. SMI Security for LTANS Module Identifier Registry
Within the SMI-numbers SMI Security Codes registry, IANA has added an "SMI
Security for LTANS Module Identifier (1.3.6.1.5.5.11.0)" table with
three columns:
OID Value Description References
-------------------- ------------------- ----------
1.3.6.1.5.5.11.0.1 id-mod-ers [RFC4998]
1.3.6.1.5.5.11.0.1.1 id-mod-ers-v1 [RFC4998]
1.3.6.1.5.5.11.0.2 id-mod-ers88 [RFC4998]
1.3.6.1.5.5.11.0.2.1 id-mod-ers88-v1 [RFC4998]
1.3.6.1.5.5.11.0.3 id-mod-ltap88 Reserved
1.3.6.1.5.5.11.0.3.0 id-mod-ltap88-v0 Reserved
1.3.6.1.5.5.11.0.3.1 id-mod-ltap88-v1 Reserved
1.3.6.1.5.5.11.0.4 id-mod-ltap Reserved
1.3.6.1.5.5.11.0.4.0 id-mod-ltap-v0 Reserved
1.3.6.1.5.5.11.0.4.1 id-mod-ltap-v1 Reserved
1.3.6.1.5.5.11.0.5 id-mod-ers-scvp [RFC5276]
1.3.6.1.5.5.11.0.5.1 id-mod-ers-scvp-v1 [RFC5276]
1.3.6.1.5.5.11.0.6 id-mod-dssc88 [RFC5698]
1.3.6.1.5.5.11.0.6.1 id-mod-dssc88-v1 [RFC5698]
1.3.6.1.5.5.11.0.7 id-mod-dssc [RFC5698]
1.3.6.1.5.5.11.0.7.1 id-mod-dssc-v1 [RFC5698]
Future updates to this table require Expert Review, as defined in
[RFC5226].
7.4. SMI Security for LTANS CMS Content Type Registry
Within the SMI-numbers SMI Security Codes registry, IANA has added an "SMI
Security for LTANS CMS Content Type (1.3.6.1.5.5.11.1)" table with
three columns:
Decimal Description References
------- --------------------- ----------
1 id-ct-evidence-record Reserved
2 id-ct-dssc-asn1 [RFC5698]
3 id-ct-dssc-xml [RFC5698]
4 id-ct-LTAPRequest Reserved
5 id-ct-LTAPResponse Reserved
6 id-ct-dssc-tbsPolicy [RFC5698]
Future updates to this table require Expert Review, as defined in
[RFC5226].
7.5. SMI Security for LTANS ERS Encryption Method Registry
Within the SMI-numbers SMI Security Codes registry, add an "SMI Security for
LTANS ERS Encryption Method (1.3.6.1.5.5.11.2)" table with three
columns:
Decimal Description References
------- --------------------- ---------------------
1 id-em-enveloped-data Reserved and Obsolete
Future updates to this table require Expert Review, as defined in
[RFC5226].
8. References
8.1. Normative References
[ASN1-88] International Telephone and Telegraph Consultative
Committee, "Specification of Abstract Syntax Notation One
(ASN.1)", CCITT Recommendation X.208, 1988.
[ASN1-97] International Telecommunications Union, "Abstract Syntax
Notation One (ASN.1): Specification of basic notation",
ITU-T Recommendation X.680, 1997.
[RFC5226] Narten, T. and H. Alvestrand, "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 5226,
May 2008.
8.2. Informative References
[LTAP] Jerman Blazic, A., Sylvester, P., and C. Wallace, "Long-
term Archive Protocol (LTAP)", Work in Progress, July
2009.
[RFC4998] Gondrom, T., Brandner, R., and U. Pordesch, "Evidence
Record Syntax (ERS)", RFC 4998, August 2007.
[RFC5276] Wallace, C., "Using the Server-Based Certificate
Validation Protocol (SCVP) to Convey Long-Term Evidence
Records", RFC 5276, August 2008.
[RFC5698] Kunz, T., Okunick, S., and U. Pordesch, "Data Structure
for the Security Suitability of Cryptographic Algorithms
(DSSC)", RFC 5698, November 2009.
9. Acknowledgements
Thanks to Carl Wallace, Sean Turner, Paul Hoffman, and Carsten
Bormann for their review and comments.
Author's Address
Russ Housley
Vigil Security Security, LLC
918 Spring Knoll Drive
Herndon, VA 20170
USA
EMail: housley@vigilsec.com