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Run idnits with the --verbose option for more detailed information about the items above. -------------------------------------------------------------------------------- 1 Network Working Group Gary Ellison 2 Internet-Draft Intertrust 3 Intended status: Informational June 28, 2007 4 Expires: December 29, 2007 6 A Uniform Resource Name (URN) Namespace for 7 the Marlin Development Community L.L.C. 8 draft-ellison-urn-marlin-02 10 Status of this Memo 12 By submitting this Internet-Draft, each author represents that any 13 applicable patent or other IPR claims of which he or she is aware 14 have been or will be disclosed, and any of which he or she becomes 15 aware will be disclosed, in accordance with Section 6 of BCP 79. This 16 document may not be modified, and derivative works of it may not be 17 created, except to publish it as an RFC and to translate it into 18 languages other than English. 20 Internet-Drafts are working documents of the Internet 21 Engineering Task Force (IETF), its areas, and its working 22 groups. Note that other groups may also distribute working 23 documents as Internet-Drafts. 25 Internet-Drafts are draft documents valid for a maximum of 26 six months and may be updated, replaced, or obsoleted by 27 other documents at any time. It is inappropriate to use 28 Internet-Drafts as reference material or to cite them other 29 than as "work in progress." 31 The list of current Internet-Drafts can be accessed at 32 http://www.ietf.org/ietf/1id-abstracts.txt. 34 The list of Internet-Draft Shadow Directories can be accessed 35 at http://www.ietf.org/shadow.html. 37 Copyright Notice 39 Copyright (C) The IETF Trust (2007). 41 Abstract 43 This document describes a Uniform Resource Name (URN) 44 namespace that will identify various objects of Marlin system 45 implementations to enable interoperability and content 46 portability. 48 Table of Contents 50 1. Introduction ....................................................2 51 2. URN Specification for the "marlin" NID ..........................2 52 3. IANA Considerations .............................................4 53 4. Community Considerations ........................................4 54 5. Security Considerations .........................................4 55 6. References ......................................................5 57 1. Introduction 59 This document proposes the "marlin" namespace, which consists 60 of the specifications, protocol bindings, XML schema and 61 service definitions developed by the Marlin Development 62 Community L.L.C. 64 One fundamental component of this architecture is its use of 65 XML [5], and specifically, XML Schema [7] and Namespaces [6]. 66 These components require identifiers that will live far 67 beyond the lifetime of the organization that produced them. 68 As such, a URN namespace for those components that adheres to 69 the assumptions and policies of the Marlin specifications is 70 required. 72 This namespace specification is for a formal namespace. 74 2. URN Specification for the "marlin" NID 76 Namespace ID: 78 The NID "marlin" is requested. 80 Registration Information: 82 Registration Version Number: 1 83 Registration Date: 2007-6-28 85 Declared registrant of the namespace: 87 Name: Gary Ellison 88 Affiliation: Marlin Development Community L.L.C. 89 Address: 415-112 North Mary Ave., Suite #383 90 Sunnyvale, CA 94085 USA 91 Phone: +1 (408) 616-1600 92 Email: editor@marlin-community.com 94 Declaration of structure: 96 The Namespace Specific Strings (NSS) of all URNs assigned by 97 Marlin [4] will conform to the syntax defined in section 2.2 of 98 RFC 2141 [1]. In addition, all Marlin URN NSSs will consist of a 99 left-to-right series of tokens delimited by colons. The left-to- 100 right sequence of colon-delimited tokens corresponds to descending 101 nodes in a tree. To the right of the lowest naming authority node 102 there may be zero, one or more levels of hierarchical (although 103 not in the RFC 2396 [2] sense of 'hierarchy') naming nodes 104 terminating in a rightmost leaf node. See the section entitled 105 "Identifier assignment" below for more on the semantics of NSSs. 107 This syntax convention is captured in the following normative ABNF 108 [3] rules for Marlin NSSs: 110 ALPHA = %x41-5A / %x61-7A ; A-Z / a-z 111 DIGIT = %x30-39 ; 0-9 112 HEXDIG = DIGIT / "A" / "B" / "C" / "D" / "E" / "F" 114 Marlin-NSS = 1*(subStChar) 0*(":" 1*(subStChar)) 115 subStChar = trans / "%" HEXDIG HEXDIG 116 trans = ALPHA / DIGIT / other / reserved 117 other = "(" / ")" / "+" / "," / "-" / "." / 118 "=" / "@" / ";" / "$" / 119 "_" / "!" / "*" / "'" 120 reserved = "%" / "/" / "?" / "#" 122 The exclusion of the colon from the list of "other" characters 123 means that the colon can only occur as a delimiter between string 124 tokens. Note that this ABNF rule set guarantees that any valid 125 Marlin NSS is also a valid RFC 2141 [1] NSS. 127 For example: 129 urn:marlin:core:1-0:schemas 130 urn:marlin:drmservices 132 Relevant ancillary documentation: 134 The structure for URNs in the "urn:marlin" namespace are defined 135 in [4]. 137 Identifier uniqueness considerations: 139 Identifiers are assigned by the techical committees within the 140 Marlin Development Community L.L.C. In the process of 141 publishing a specification all newly minted names are checked 142 against the record of previously assigned names. 144 Identifier persistence considerations: 146 The assignment process guarantees that names are not reassigned 147 and that the binding between the name and its resource is 148 permanent, regardless of any standards or organizational changes. 150 Process of identifier assignment: 152 Names are assigned by the Marlin Development Community 153 L.L.C. standards publication process. 155 Process of identifier resolution: 157 At this time no resolution mechanism is specified. 159 Rules for Lexical Equivalence: 161 Lexical equivalence of two Marlin namespace specific strings 162 (NSSs) is defined as an exact, case sensitive string match. 163 The Marlin Development Community L.L.C. will assign names of 164 immediately subordinate naming authorities in a case-insensitive 165 fashion, so that there will not be two Marlin-subordinate naming 166 authorities whose names differ only in case. 168 Conformance with URN Syntax: 170 There are no additional characters reserved. 172 Validation mechanism: 174 None other than verifying with the correct Marlin specifications. 176 Scope: 178 Global 180 3. IANA Considerations 182 This document includes a URN Namespace registration that has been 183 entered into the IANA registry for URN NIDs. 185 4. Community Considerations 187 While there is no resolution mechanism for this namespace, the names 188 themselves are used in public implementations of the Marlin 189 specifications. There are circumstances where objects from the 190 Marlin system will become exposed to the general Internet. In these 191 cases, the use of the Marlin namespace will provide general 192 interoperability benefits to the Internet at large. Additionally, 193 there may be subcomponents of the Marlin specifications that may be 194 adopted by other standards, in which case the URNs used to identify 195 those components and specifications can be easily used to enhance 196 other, non-Marlin based, systems. 198 5. Security Considerations 200 Since there is no defined resolution mechanism for Marlin URNs it is 201 difficult to authenticate the fact that a given namespace actually 202 adheres to the standard, thus applications should be careful to not 203 take some unverified sources assertion that what it is sending 204 adheres to what the actual URN is assigned to. 206 6. References 208 6.1. Normative References 210 [1] Moats, R., "URN Syntax", RFC 2141, May 1997. 212 [2] Berners-Lee, T., Fielding, R. and L. Masinter, "Uniform Resource 213 Identifiers (URI): Generic Syntax", RFC 3986, January 2005. 215 [3] Crocker, D., Ed. and P. Overell, "Augmented BNF for Syntax 216 Specifications: ABNF", RFC 4234, October 2005. 218 [4] Marlin Developer Community L.L.C., "Marlin Core System 219 Specification", Septermber 2006, 220 . 222 6.2. Informative References 224 [5] Bray, T., Paoli, J., Sperberg-McQueen, C. and E. Maler, 225 "Extensible Markup Language (XML) 1.0 (2nd ed)", W3C REC-xml, 226 October 2000, . 228 [6] Bray, T., Hollander, D. and A. Layman, "Namespaces in XML", W3C 229 REC-xml-names, January 1999, . 232 [7] Thompson, H., Beech, D., Maloney, M. and N. Mendelsohn, "XML 233 Schema Part 1: Structures", W3C REC-xmlschema-1, May 2001, 234 . 236 Author's Address 238 Gary Ellison 239 Intertrust, Inc. 240 955 Stewart Drive 241 Sunnyvale, CA 94085 242 USA 244 Phone: +1 408 616 1625 245 EMail: gfe@intertrust.com 246 URI: http://www.intertrust.com 248 Full Copyright Notice 250 Copyright (C) The IETF Trust (2007). 252 This document is subject to the rights, licenses and restrictions 253 contained in BCP 78, and except as set forth therein, the authors 254 retain all their rights. 256 This document and the information contained herein are provided on an 257 "AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS 258 OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY, THE IETF TRUST AND 259 THE INTERNET ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS 260 OR IMPLIED, INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF 261 THE INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED 262 WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 264 Intellectual Property 266 The IETF takes no position regarding the validity or scope of any 267 Intellectual Property Rights or other rights that might be claimed to 268 pertain to the implementation or use of the technology described in 269 this document or the extent to which any license under such rights 270 might or might not be available; nor does it represent that it has 271 made any independent effort to identify any such rights. Information 272 on the procedures with respect to rights in RFC documents can be 273 found in BCP 78 and BCP 79. 275 Copies of IPR disclosures made to the IETF Secretariat and any 276 assurances of licenses to be made available, or the result of an 277 attempt made to obtain a general license or permission for the use of 278 such proprietary rights by implementers or users of this 279 specification can be obtained from the IETF on-line IPR repository at 280 http://www.ietf.org/ipr. 282 Expires: December 29, 2007 284 The IETF invites any interested party to bring to its attention any 285 copyrights, patents or patent applications, or other proprietary 286 rights that may cover technology that may be required to implement 287 this standard. Please address the information to the IETF at 288 ietf-ipr@ietf.org. 290 Acknowledgement 292 Funding for the RFC Editor function is currently provided by the 293 Internet Society.