Progress on OID Resolution System

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Progress onOID Resolution System

Document number

Zhangjiajia, China

8-10 April 2009

Jun Seob LEE, Hyoung Jun KIM ([email protected], [email protected])

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Concept

History

Contents of 2nd Working Draft

Issues

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1. Concept of OID Resolution System

• Object Identifier (OID)– Definition: A globally unique value associated with an object

to unambiguously identify it (ITU-T Recommendation X.680 | ISO/IEC 8824-1)

– Variety of objects: ITU-T SG no., countries, Standards, cryptographic algorithm, network, protocol commend, code … Anything

– Example• {0 1 17} = ITU-T Study Group 17• {1 0 15961} = ISO/IEC 15961• {1 2 410 200004 1 2} = HAS-160 hash algorithm• {0 3 4500} = Korea (Rep. of) HiNET-P (Korea Telecom)• {1 0 15961 126 7} = ReadSingleObjectCommand

• OID Resolution System– Definition: A system which provides information associated

with any object identified by an Object Identifier

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2. History (1/2)

• During the discussion on ITU-T restructuring, new ToR, OID resolution, is added to Q.10 (Q.12)

• NP (6N13665) was proposed at July 2008• NP was approved at October 2008• JTC 1/SC 6 meeting (Montreux , 3 ~ 7 November 2008)

– Project No. (55.01.00) and designate IS no. (29168) were assigned

– BRM for NP ballot

• 1st Working Draft was submitted to JTC 1/SC 6 at December 2008

• ITU-T SG17 meeting (Geneva, 11 ~ 20 February 2009)– BRM on 1st Working Draft

• 2nd Working Draft was submitted to JTC 1/SC 6 at 31 March

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2. History (2/2)

• Project editors (both ITU-T SG17 and JTC 1/SC 6)– Mr. Jun Seob LEE ([email protected], Korea)– Ms. Xu Donmei ([email protected], China)– Prof. Byoung-Ho Ahn ([email protected], Korea)

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3. Contents of 2nd Working Draft (1/3)

• Title: Object Identifier Resolution System• Contents

– OID Resolution System Architecture• Overview• General OID resolution process• Application-specific OID resolution process

– The DNS protocol for the general OID resolution process• Query to an OID resolution server• Response from the OID resolution server

– Operation of the OID Resolution System– Name space for OID Resolution System– Default setting of zone file for OID Resolution System– Security and Trust Aspects of the OID Resolution System

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3. Contents of 2nd Working Draft (2/3)

• Overview of OID Resolution System

DNSX.500

DirectoryOther

Directory

ST

EP

3: O

ID

ST

EP

4: A

pplic

atio

n-s

pec

ific

asso

ciat

ed in

form

atio

n

……

STEP 1: OID

STEP 2: Associatedinformation

OID resolution servers(ORS) Root ORS

…

…

ORS for x

ORS for x.y

… ORS for x.y.z

……

…

…

OID resolution client(ORC)

General OID resolution process

Application-specific OID resolution process

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3. Contents of 2nd Working Draft (3/3)

• Input to OID resolution server– Canonical form of OID-IRI (ex, /2/27/1)– OID-IRI (ex, /joint-iso-itu-t/tag-based/mcode)

• Output from OID resolution server– Access information

• Access method and location (ex, HTTP, www.example.com)

– Child node information (TBD)– Canonical form of an OID-IRI (ex, /2/27/1)

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4. Issues

• Name space for OID Resolution System– New gTLD for OID Resolution System

• .oid, oid.itu.int, oid.int …

• Default setting of zone file• Security issues

– DNSsec

www.tta.or.krwww.tta.or.kr