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Internet Engineering Task Force (IETF)                         S. Turner
Request for Comments: 5916                                          IECA
Category: Informational                                        June 2010
ISSN: 2070-1721

                         Device Owner Attribute

Abstract

   This document defines the Device Owner attribute.  It indicates the
   entity (e.g., company, organization, department, agency) that owns
   the device.  This attribute may be included in public key
   certificates and attribute certificates.

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/RFC 5916.

Copyright Notice

   Copyright (c) 2010 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
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   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.

Turner                        Informational                     [Page 1]
RFC 5916 Device Owner Attribute June 2010 1. Introduction This document specifies the Device Owner attribute. It indicates the entity (e.g., company, organization, department, agency) that owns the device. This attribute is intended to be used in public key certificates [RFC 5280] and attribute certificates [RFC 5755]. This attribute may be used in automated authorization decisions. For example, when two peers are deciding whether to communicate, each could check that the device owner present in the other device's certificate is on an "approved" list. This check is performed in addition to certification path validation [RFC 5280]. The mechanism for managing the "approved" list is beyond the scope of this document. NOTE: This document does not provide an equivalent Lightweight Directory Access Protocol (LDAP) schema specification as this attribute is targeted at public key certificates [RFC 5280] and attribute certificates [RFC 5755]. Definition of an equivalent LDAP schema 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 [RFC 2119]. 1.2. ASN.1 Syntax Notation The attribute is defined using ASN.1 [X.680], [X.681], [X.682], and [X.683]. 2. Device Owner The Device Owner attribute indicates the entity (e.g., company, organization, department, agency) that owns the device with which this attribute is associated. Device Owner is an object identifier. 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 } Turner Informational [Page 2]
RFC 5916 Device Owner Attribute June 2010 The ASN.1 syntax for the Device Owner attribute is as follows: at-deviceOwner ATTRIBUTE ::= { TYPE OBJECT IDENTIFIER EQUALITY MATCHING RULE objectIdentifierMatch IDENTIFIED BY id-deviceOwner } There MUST only be one value of Device Owner associated with a device. Distinct owners MUST be represented in separate certificates. 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. Including this attribute in a public key certificate or attribute certificate ensures the value for the device owner is integrity protected. 4. Normative References [RFC 2119] Bradner, S., "Key words for use in RFCs to Indicate Requirement Levels", BCP 14, RFC 2119, March 1997. [RFC 5280] Cooper, D., Santesson, S., Farrell, S., Boeyen, S., Housley, R., and W. Polk, "Internet X.509 Public Key Infrastructure Certificate and Certificate Revocation List (CRL) Profile", RFC 5280, May 2008. [RFC 5755] Farrell, S., Housley, R., and S. Turner, "An Internet Attribute Certificate Profile for Authorization", RFC 5755, January 2010. [RFC 5912] Schaad, J. and P. Hoffman, "New ASN.1 Modules for the Public Key Infrastructure Using X.509 (PKIX)", RFC 5912, June 2010. [X.501] ITU-T Recommendation X.520 (2002) | ISO/IEC 9594-2:2002, Information technology - The Directory: Models. [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. [X.681] ITU-T Recommendation X.681 (2002) | ISO/IEC 8824-2:2002, Information Technology - Abstract Syntax Notation One: Information Object Specification. Turner Informational [Page 3]
RFC 5916 Device Owner Attribute June 2010 [X.682] ITU-T Recommendation X.682 (2002) | ISO/IEC 8824-3:2002, Information Technology - Abstract Syntax Notation One: Constraint Specification. [X.683] ITU-T Recommendation X.683 (2002) | ISO/IEC 8824-4:2002, Information Technology - Abstract Syntax Notation One: Parameterization of ASN.1 Specifications. Turner Informational [Page 4]
RFC 5916 Device Owner Attribute June 2010 Appendix A. ASN.1 Module This appendix provides the normative ASN.1 [X.680] definitions for the structures described in this specification using ASN.1 as defined in [X.680], [X.681], [X.682], and [X.683]. 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 -- IMPORTS from New PKIX ASN.1 [RFC 5912] ATTRIBUTE FROM PKIX-CommonTypes-2009 { iso(1) identified-organization(3) dod(6) internet(1) security(5) mechanisms(5) pkix(7) id-mod(0) id-mod-pkixCommon-02(57) } -- Imports from ITU-T X.501 [X.501] objectIdentifierMatch FROM InformationFramework { joint-iso-itu-t ds(5) module(1) informationFramework(1) 4 } ; -- device owner attribute OID and syntax id-deviceOwner OBJECT IDENTIFIER ::= { joint-iso-ccitt(2) country(16) us(840) organization(1) gov(101) dod(2) infosec(1) attributes(5) 69 } at-deviceOwner ATTRIBUTE ::= { TYPE OBJECT IDENTIFIER EQUALITY MATCHING RULE objectIdentifierMatch IDENTIFIED BY id-deviceOwner } END Turner Informational [Page 5]
RFC 5916 Device Owner Attribute June 2010 Author's Address Sean Turner IECA, Inc. 3057 Nutley Street, Suite 106 Fairfax, VA 22031 USA EMail: turners@ieca.com Turner Informational [Page 6]