Network Working Group Sean Turner, IECA
Internet Draft October 19, 2009
Intended Status: Informational Track
Expires: April 19, 2010
Device Owner Attribute
draft-turner-deviceowner-attribute-02.txt
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Abstract
This document defines the Device Owner attribute. This attribute may
be included in locations or protocols that support ASN.1 attributes.
1. Introduction
This document specifies the Device Owner attribute. This attribute
may be included in locations or protocols that support ASN.1
attribute definitions to indicate the country or group that owns the
device.
This attribute may be used in authorization decisions. For example, a
router deciding whether to connect to another router could check that
the device owner present in the device's certificate is on an
"approved" list.
NOTE: This document does not provide LDAP equivalent schema
specification as this attribute is targeted at public key
certificates [RFC5280] and attribute certificates [RFC3281bis]. This
is left to a future specification.
1.1. Terminology
The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
"SHOULD", "SHOULD NOT", "RECOMMENDED", "MAY", and "OPTIONAL" in this
document are to be interpreted as described in [RFC2119].
1.2. ASN.1 Syntax Notation
The attributes are defined using ASN.1 [X.680].
2. Device Owner
The Device Owner attribute indicates the country or organization that
owns the Device with which this attribute is associated. Device
Owner is a choice of ISO 3166 [ISO3166-1] and [ISO3166-2] country
codes or an object identifier that represents a group of nations, an
organization, or any entity other than a nation.
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The following object identifier identifies the Device Owner
attribute:
id-deviceOwner OBJECT IDENTIFIER ::= {
joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101)
dod(2) infosec(1) attributes(5) 69
}
The ASN.1 syntax for the Device Owner attribute is as follows:
deviceOwner ATTRIBUTE ::= {
WITH SYNTAX DeviceOwner
EQUALITY MATCHING RULE deviceOwnerMatch
SINGLE VALUE TRUE
ID id-deviceOwner
}
DeviceOwner ::= CHOICE {
alpha2Country [0] PrintableString ( SIZE (2) ),
-- ISO 3166-1 2 Letter Codes (aka diagram).
alpha3Country [1] PrintableString ( SIZE (3) ),
-- ISO 3166-1 3 Letter Codes (aka trigram).
alpha4Country [2] PrintableString ( SIZE (4) ),
-- ISO 3166-2 4 Letter Codes (ISO 3166-1 diagram and a hyphen
-- followed by one alpha or numeric code).
alpha5Country [3] PrintableString ( SIZE (5) ),
-- ISO 3166-2 5 Letter Codes (ISO 3166-1 diagram and a hyphen
-- followed by two alpha or numeric codes).
alpha6Country [4] PrintableString ( SIZE (6) ),
-- ISO 3166-2 6 Letter Codes (ISO 3166-1 diagram and a hyphen
-- followed by three alpha or numeric codes).
numericCountry INTEGER (0..999),
-- ISO 3166-1 3 Digit Codes.
group OBJECT IDENTIFIER
}
There MUST only be one value of Device Owner associated with a
device, as distinct owners SHOULD be represented in separate
certificates.
NOTE: When an environment uses the Device Owner attribute, it is
important that the same CHOICE be used throughout the environment.
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The following object identifier identifies the Device Owner matching
rule:
id-matching-rule-deviceOwnerMatch OBJECT IDENTIFIER ::= {
joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101)
dod(2) infosec(1) matching-rules(9) 6
}
When performing a match the following matching rule is used:
deviceOwnerMatch MATCHING-RULE ::= {
SYNTAX DeviceOwner
ID id-matching-rule-deviceOwnerMatch
}
This rule returns a TRUE if the strings are the same length and
corresponding characters are identical except possibly with regard to
case.
3. Security Considerations
If this attribute is used as part of an authorization process, the
procedures employed by the entity that assigns each value must ensure
that the correct value is applied. Further, once applied to the
object it must be bound to the object; this binding is normally
performed by digitally signing over the object and the attribute to
ensure data integrity.
4. IANA Considerations
None: All identifiers are already registered. Please remove this
section prior to publication as an RFC.
5. References
5.1. Normative References
[ISO3166-1] ISO 3166-1: Codes for the Representation of Names of
Countries and Their Subdivisions - Part 1: Country
Codes, 2006.
[ISO3166-2] ISO 3166-2: Codes for the Representation of Names of
Countries and Their Subdivisions - Part 2: Country
Subdivision Code, 2007.
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[RFC2119] Bradner, S., "Key words for use in RFCs to Indicate
Requirement Levels", BCP 14, RFC 2119, March 1997.
[X.680] ITU-T Recommendation X.680 (2002) | ISO/IEC 8824-
1:2002, Information technology - Abstract Syntax
Notation One (ASN.1): Specification of basic notation.
[RFC5280] Cooper, D., et. al., "Internet X.509 Public Key
Infrastructure Certificate and Certification Revocation
List (CRL) Profile", RFC 5280, May 2008.
[RFC3281bis] Farrell, S., Housley, R., and S. Turner, "An Internet
Attribute Certificate Profile for Authorization",
draft-ietf-pkix-3281update-05.txt, work-in-progress.
/**
RFC Edit: Please replace "RFC3281bis" with "RFC####" where ###
is the number of the published RFC in both the references and
the text.
**/
5.2. Informative References
None
Appendix A. ASN.1 Module
This appendix provides the normative ASN.1 [X.680] definition for the
structure described in this specification.
DeviceOwnerAttribute-2008
{ joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101)
dod(2) infosec(1) module(0) id-deviceOwnerAttribute-2008(34) }
DEFINITIONS IMPLICIT TAGS ::=
BEGIN
-- EXPORTS ALL --
-- IMPORTS NOTHING --
-- device owner attribute OID and syntax
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id-deviceOwner OBJECT IDENTIFIER ::= {
joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101)
dod(2) infosec(1) attributes(5) 69
}
deviceOwner ATTRIBUTE ::= {
WITH SYNTAX DeviceOwner
EQUALITY MATCHING RULE deviceOwnerMatch
SINGLE VALUE TRUE
ID id-deviceOwner
}
DeviceOwner ::= CHOICE {
alpha2Country [0] PrintableString ( SIZE (2) ),
-- ISO 3166-1 2 Letter Codes (aka diagram).
alpha3Country [1] PrintableString ( SIZE (3) ),
-- ISO 3166-1 3 Letter Codes (aka trigram).
alpha4Country [2] PrintableString ( SIZE (4) ),
-- ISO 3166-2 4 Letter Codes (ISO 3166-1 diagram and a hyphen
-- followed by one alpha or numeric code).
alpha5Country [3] PrintableString ( SIZE (5) ),
-- ISO 3166-2 5 Letter Codes (ISO 3166-1 diagram and a hyphen
-- followed by two alpha or numeric codes).
alpha6Country [4] PrintableString ( SIZE (6) ),
-- ISO 3166-2 6 Letter Codes (ISO 3166-1 diagram and a hyphen
-- followed by three alpha or numeric codes).
numericCountry INTEGER (0..999),
-- ISO 3166-1 3 Digit Codes.
group OBJECT IDENTIFIER
}
id-matching-rule-deviceOwnerMatch OBJECT IDENTIFIER ::= {
joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101)
dod(2) infosec(1) matching-rules(9) 6
}
deviceOwnerMatch MATCHING-RULE ::= {
SYNTAX DeviceOwner
ID id-matching-rule-deviceOwnerMatch
}
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ATTRIBUTE ::= CLASS {
&derivation ATTRIBUTE OPTIONAL,
&Type OPTIONAL,
-- either &Type or &derivation required
&equality-match MATCHING-RULE OPTIONAL,
&ordering-match MATCHING-RULE OPTIONAL,
&substrings-match MATCHING-RULE OPTIONAL,
&single-valued BOOLEAN DEFAULT FALSE,
&collective BOOLEAN DEFAULT FALSE,
-- operational extensions
&no-user-modification BOOLEAN DEFAULT FALSE,
&usage AttributeUsage DEFAULT userApplications,
&id OBJECT IDENTIFIER UNIQUE }
WITH SYNTAX {
[ SUBTYPE OF &derivation ]
[ WITH SYNTAX &Type ]
[ EQUALITY MATCHING RULE &equality-match ]
[ ORDERING MATCHING RULE &ordering-match ]
[ SUBSTRINGS MATCHING RULE &substrings-match ]
[ SINGLE VALUE &single-valued ]
[ COLLECTIVE &collective ]
[ NO USER MODIFICATION &no-user-modification ]
[ USAGE &usage ]
ID &id }
MATCHING-RULE ::= CLASS {
&AssertionType OPTIONAL,
&id OBJECT IDENTIFIER UNIQUE }
WITH SYNTAX {
[ SYNTAX &AssertionType ]
ID &id }
AttributeType ::= ATTRIBUTE.&id
AttributeValue ::= ATTRIBUTE.&Type
AttributeUsage ::= ENUMERATED {
userApplications (0),
directoryOperation (1),
distributedOperation (2),
dSAOperation (3) }
END
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Author's Addresses
Sean Turner
IECA, Inc.
3057 Nutley Street, Suite 106
Fairfax, VA 22031
USA
EMail: turners@ieca.com
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