IEEE 802.21 MEDIA INDEPENDENT HANDOVER DCN: 21-09-0186-00-0sec Security TG Revised Timeline

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IEEE 802.21 MEDIA INDEPENDENT HANDOVER

DCN: 21-09-0186-00-0sec

Title: Security TG Revised Timeline

Date Submitted: November 19, 2009

Presented at IEEE 802.21 session #35 in Atlanta

Authors or Source(s):

Yoshihiro Ohba (Toshiba)

Abstract: This document describes revised TG timeline

21-09-0186-00-0sec 1

IEEE 802.21 presentation release statements

This document has been prepared to assist the IEEE 802.21 Working Group. It is offered as a basis for discussion and is not binding on the contributing individual(s) or organization(s). The material in this document is subject to change in form and content after further study. The contributor(s) reserve(s) the right to add, amend or withdraw material contained herein.

The contributor grants a free, irrevocable license to the IEEE to incorporate material contained in this contribution, and any modifications thereof, in the creation of an IEEE Standards publication; to copyright in the IEEE’s name any IEEE Standards publication even though it may include portions of this contribution; and at the IEEE’s sole discretion to permit others to reproduce in whole or in part the resulting IEEE Standards publication. The contributor also acknowledges and accepts that this contribution may be made public by IEEE 802.21.

The contributor is familiar with IEEE patent policy, as stated in Section 6 of the IEEE-SA Standards

Board bylaws < http://standards.ieee.org/guides/bylaws/sect6-7.html#6 > and in Understanding

Patent Issues During IEEE Standards Development http://standards.ieee.org/board/pat/faq.pdf

>

21-09-0186-00-0sec 2

802.21a Call For Proposals

Scope of proposals

• Work Item #1: Mechanisms to reduce the latency during authentication and key establishment for handovers between heterogeneous access networks that support IEEE 802.21

• Work Item #2: Mechanisms to provide data integrity, replay protection, confidentiality and data origin authentication to IEEE 802.21 MIH protocol exchanges and enable authorization for MIH services

Proposals must be submitted to 802.21 Document Repository

( https://mentor.ieee.org/802.21/documents )

• Group: Security

Document Title: TGa_Proposal_ Firstname _ Lastname (e.g.,TGa_Proposal_Yoshihiro_Ohba)

Submission Deadline: March 1 st (Mon), 2010 , end of day AOE (Anywhere On Earth)

Only revised proposals are allowed

• Revised Proposal: An updated proposal that captures any comments/feedbacks received during its earlier presentation or earlier TGa discussions

Use http://mentor.ieee.org/802.21/dcn/09/21-09-0179-01-0sec-tentative-ieee-802-21a-documentstructure.doc as the guideline on document structure

After the submission deadline, no new revision of proposal is allowed

For questions, please contact to Yoshihiro Ohba <yoshihiro.ohba@toshiba.co.jp>, Chair of 802.21a

Task Group

21-09-0186-00-0sec 3

Timeline

Call for Proposal (March 2009)

Proposal Presentation I (May 2009)

Proposals must be submitted 1-week prior to meeting

Harmonization

Proposal Presentation II (July 2009)

Proposals with detailed text must be submitted 1-week prior to meeting

Harmonization

Discussion

(November 2009

& January 2010)

Harmonization

Proposal Presentation III (September 2009)

Proposals with detailed text must be submitted 1-week prior to meeting

Harmonization

Presentation & Down-Selection

(March 2010)

Proposals with Draft Text must be submitted 2-week prior to meeting

Down-Selection succeeds

Draft Standard

Text is contributed to

802.21a draft standard

21-09-0186-00-0sec

Done

Done

Done

Down-Selection fails

Regrouping

4

Presentation & Down-Selection

1.

Authors provide Draft Text for review two weeks prior to presentation

2.

Written questions for clarifications to be submitted to the Task

Group one week in advance

 Answers to these questions submitted within 3 days thereafter

3.

A technical motion to approve Draft Text provided by the proposal and make it part of the IEEE 802.21a draft specification is brought forward to the TG at presentation time

4.

A proposal containing multiple components can lead to multiple motions

5.

Authors must indicate at presentation time how many motions they intend to bring forward to the TG

6.

All motions are carried out at the end of all presentations

7.

Time allocated for presentations and motions is advertised in the opening meeting

8.

A technical motion at Down-Selection requires 75% to pass

9.

One member can vote on multiple motions

21-09-0186-00-0sec 5

Presentation & Down-Selection (cont’d)

10. In case no motion passes by 75%, the proposal receiving the most number of votes is selected for another round of confirmation vote by the TG

• More than one proposal can be selected at this stage in case the most popular proposal does not cover all work items specified in the CFP

• Proposals are selected in decreasing order of popularity (# votes) received

• If this confirmation vote fails, Proposal(s) are broken up into several technical items and TG votes on each technical item

11. In case multiple proposals are approved by more than 75% they are integrated into the Draft Text

• Proposers work with the Editing Committee which consists of the Editor and the TG Chair in order to combine proposals

• Conflict and overlaps are brought back to the TG to vote on

• Failed proposals are eliminated from further consideration

12. In case no proposal is approved at the end of Down-Selection, the

TG may need to regroup. The options include (1) refining the requirements document, (2) refining the evaluation and downselection criteria, (3) reissuing a new call for proposals

21-09-0186-00-0sec 6

Down-Selection Flowchart

TG vote on all proposals available

*There could be several proposals under consideration in order to cover different work items

**Overlap is identified by Editing Committee, TG participants, and/or proposers; contention in resolving overlap is brought to TG for vote.

Any proposal gets 75% Approval ?

Yes

Authors work w/ Editing

Committee to integrate text into draft specifications

No

Proposal(s)* getting highest votes are subject to TG confirmation vote

No

Any contentious overlap**?

Yes

75% Approval?

Yes

Inclusion in draft specifications

Options are provided for each overlap area; TG votes on options available for overlap

No

Proposal(s) are broken up into several technical items;

TG votes on each technical item

Yes

Technical item gets

75% Approval?

No

Yes Option gets

75% Approval?

No

21-09-0186-00-0sec

Elimination from further consideration

7

General Presentation Rule

1. Proposals are categorized into the two groups

Presentation Group 1: Work Item #1

Presentation Group 2: Work Item #2

Presentation Group 3: Work Items #1 and #2 combined

2. Presentation order is random within each Presentation

Group as determined by the TG Chair

3. Time allocated to each presentation is evenly distributed among all presentations in the same Presentation Group

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21-09-0186-00-0sec

Proposal Guidelines

9

Remark

• The purpose of Proposal Guidelines is to help submitters to make a good proposal so that it can convince the group to adopt it.

• The Proposal Guidelines shall not limit creative ideas and proposals.

• A proposal will not be disqualified for not following the

Proposal Guidelines.

• On the other hand, a proposal is unlikely to be adopted if it cannot be evaluated or cannot fit in 802.21.

21-09-0186-00-0sec 10

Proposal Guideline -

Proposal Characterization List

• Each presentation is expected to contain a Proposal Characterization

List to help characterizing the proposal

Please refer to security TR document (21-08-0172-02-0sec) to create a Proposal Characterization List

2

2

2

1

2

2

2

1

1

Work

Item #

1

1

1

1

An Example Proposal Characterization List

Supported Functionality Reference to

TR section(s)

Note

Proactive Re-Authentication

EAP Pre-authentication

Key Hierarchy and Derivation 1

Higher-Layer Transport for MN-CA, MN-SA and SA-

CA signaling

Link-Layer Transport for MN-SA signaling

Authenticator Discovery Mechanism

Context Binding Mechanism

Access Authentication

MIH-Specific Authentication

Key Hierarchy and Derivation 2

MIH-Specific Protection

Protection by MIH Transport Protocol

Visited Domain Access

2.3.3

2.3.2

2.3.3.1

2.3.2.3

2.3.2.3

2.3.2.3, 2.3.3.4

2.3.2.3, 2.3.3.4

3.6.1

3.6.2

3

3.6.1.1, 3.6.2.1

3.6.1.2, 3.6.2.2

3.6.3.1

Visited MIH services have the same security policies

21-09-0186-00-0sec 11

Proposal Guideline –

Refer to 802.21

• Each proposal is expected to make a clear reference to 802.21 with regard to

802.21 entities: If a new 802.21 entity is introduced for proposed security solutions, then address the relation, location, and interface with other 802.21 entities.

Reference points: if new reference point(s) are introduced, then define and identify the reference point(s) w.r.t the

MIHF communication model specified in the 802.21 spec.

Data fields: if for protected messages, new data fields are introduced, then specify them in 802.21 data format.

21-09-0186-00-0sec 12

Proposal Guideline –

Assumptions

• If a proposal relies on assumptions which are not described in the 802.21 standard, then explicitly state them to avoid any confusion and long debate, for example,

• if a proposal relies on transport protocols to apply security protection for MIH information, then include the transport protocols and security protections assumed for the protocols;

• if AAA server is employed, then state it;

If a cryptographic key is used, then state how the key is established, etc

21-09-0186-00-0sec 13

Proposal Guideline –

Rationale

• Provide clear rationale and discussions about the proposed content to help the evaluation and acceptance. This may include but not limited to:

Security objectives;

Attacks to protect against;

Security performance tradeoffs;

Comparisons with other solutions, if any;

Current standards (re-use);

Etc.

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