Re: [stir] Moving from BOF to Charter
Hadriel Kaplan <hadriel.kaplan@oracle.com> Fri, 09 August 2013 14:42 UTC
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From: Hadriel Kaplan <hadriel.kaplan@oracle.com>
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Date: Fri, 09 Aug 2013 10:42:29 -0400
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To: Russ Housley <housley@vigilsec.com>
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Cc: IETF STIR Mail List <stir@ietf.org>
Subject: Re: [stir] Moving from BOF to Charter
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SHIP IT. -hadriel p.s. I too just sent some grammatical nits to Russ directly, but don't care if they don't get done - just a Type A personality issue. On Aug 9, 2013, at 10:29 AM, Eric Rescorla <ekr@rtfm.com> wrote: > This looks basically good to me. Some wordsmithing below. > > -Ekr > > On Fri, Aug 9, 2013 at 7:00 AM, Russ Housley <housley@vigilsec.com> wrote: > Below is the current charter text. Is it ready for the IESG? > > Russ > > > Thanks. > > > > Is that it? Is everyone okay with the charter language now? Russ will post a new complete version just to make sure, but can we send this to the IESG and ask for the work group? > > > > Brian > > = = = = = = = = > > Name: Secure Telephone Identity Revisited (stir) > Area: RAI > > Chairs: TBD > Area Advisor: Richard Barnes > > Mailing list: stir@ietf.org > To Subscribe: https://www.ietf.org/mailman/listinfo/stir > > The STIR working group will specify mechanisms for the validation of > source telephone number for an incoming call. Since it > has become fairly easy to present an incorrect source telephone number, a > growing set of problems have emerged over the last decade. As with > email, the claimed source identity of a SIP request is not verified, > permitting unauthorized use of the source identity as part of deceptive > and coercive activities, such as robocalling (bulk unsolicited commercial > communications), vishing (voicemail hacking, and impersonating banks) > > this may need an e.g., > > and > swatting (impersonating callers to emergency services to stimulate > unwarranted large scale law enforcement deployments). In addition, use > of an incorrect source telephone number facilitates wire fraud or lead to > > maybe "or can lead to" > > a return call at premium rates. This working group will define > mechanisms that verify the authorization of the calling party to use a > particular telephone number. > > Do the mechanisms verify or "allow verification of..." > > > SIP is one of the main VoIP technologies used by parties that want to > present an incorrect origin, in this context an origin telephone number. > Several previous efforts have tried to secure the origins of SIP > communications, including RFC 3325, RFC 4474, and the VIPR working group. > To date, however, true validation of the source of SIP calls has not seen > any appreciable deployment. Several factors contributed to this lack of > success, including: failure of the problem to be seen as critical at the > time; lack of any technical means of producing a proof of authority over > telephone numbers; misalignment of the mechanisms proposed by RFC 4474 > with the complex deployment environment that has emerged for SIP; lack of > end-to-end SIP session establishment; and inherent operational problems > with a transitive trust model. To make deployment of this solution more > likely, consideration must be given to latency, real-time performance, > computational overhead, and administrative overhead for the legitimate > call source and all verifiers. > > As its priority mechanism work item, the working group will specify a SIP > header-based mechanism to verify the originator of a SIP session is > authorized to use the claimed source telephone number, where the session > is established with SIP end to end. This is called an in-band mechanism. > The mechanism will use a canonical telephone number representation > specified by the working group, including any mappings that might be > needed between the SIP header fields and the canonical telephone number > representation. The working group will consider choices for protecting > identity information and credentials used, but will likely be based on a > digital signature mechanism that covers a set of information in the SIP > header fields, and verification will employ a credential that contains > the public key and is associated with the one or more telephone numbers. > In order to be authoritative, credentials used with this mechanism will > be derived from existing telephone number assignment and delegation > models. That is, when a telephone number or range of telephone numbers > is delegated to an entity, relevant credentials will be generated (or > modified) to reflect such delegation. The mechanism must allow a > telephone number holder to further delegate and revoke use of a telephone > number without compromising the global delegation scheme. > > In addition to its priority mechanism work item, the working group will > consider session establishment where there are one or more non-SIP hops, > most likely using an out-of-band mechanism. > > I feel like some words are missing here. Perhaps > "providing authorization for session establishment...." > "most likely requiring an out-of-band authorization mechanism" > > > However, the in-band and the > out-of-band mechanisms should share as much in common as possible, > especially the credentials. The in-band mechanism must be sent to the > IESG for approval and publication prior to the out-of-band mechanism. > > Expansion of the authorization mechanism to identities using the > user@domain form deferred since the main focus of the working group is to > develop a solution for telephone numbers. > > The working group will coordinate with the Security Area on credential > management. > > The working group will coordinate with other working groups in the RAI > Area regarding signaling through existing deployments. > > Authentication and authorization of identity is closely linked to > privacy, and these security features sometimes come at the cost of > privacy. Anonymous calls are already defined in SIP standards, and this > working group will not propose changes to these standards. A called > party will receive an indication that the source telephone number is > unavailable in order to provide anonymity. > > Perhaps: > "In order to support anonymity, the output of the WG will provide a mode > in which the called party receives an indication..." > > > This working group, to the > extent feasible, will specify privacy-friendly mechanisms that do not > reveal any more information to user agents or third parties than a call > that does not make use of secure telephone identification mechanisms. > > Input to working group discussions shall include: > > - Private Extensions to the Session Initiation Protocol (SIP) > for Asserted Identity within Trusted Networks > [RFC 3325] > > - Enhancements for Authenticated Identity Management in the > Session Initiation Protocol (SIP) > [RFC 4474] > > - Secure Call Origin Identification > [draft-cooper-iab-secure-origin-00] > > - Secure Origin Identification: Problem Statement, Requirements, > and Roadmap > [draft-peterson-secure-origin-ps-00] > > - Authenticated Identity Management in the Session Initiation > Protocol (SIP) > [draft-jennings-dispatch-rfc4474bis-00] > > The working group will deliver the following: > > - A problem statement detailing the deployment environment and > situation that motivate work on secure telephone identity > > - A threat model for the secure telephone identity mechanisms > > - A privacy analysis of the secure telephone identity mechanisms > > - A mechanism document describing the SIP end-to-end with telephone > number-based identities > > - A document describing the credentials required to support > telephone number identity authentication > > - A fallback mechanism to allow out-of-band identity establishment > during call setup > > Milestones > > Sep 2013 Submit problem statement for Informational > Nov 2013 Submit threat model for Informational > Nov 2013 Submit in-band mechanism for Proposed Standard > Feb 2014 Submit credential specification for Proposed Standard > Apr 2014 Submit Privacy analysis for Informational > Jun 2014 Submit out-of-band mechanism for Proposed Standard > > _______________________________________________ > stir mailing list > stir@ietf.org > https://www.ietf.org/mailman/listinfo/stir > > _______________________________________________ > stir mailing list > stir@ietf.org > https://www.ietf.org/mailman/listinfo/stir
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- [stir] Moving from BOF to Charter Russ Housley
- [stir] Including out-of-band in the Charter Russ Housley
- Re: [stir] Moving from BOF to Charter Stephen Kent
- Re: [stir] Including out-of-band in the Charter Cullen Jennings (fluffy)
- Re: [stir] Including out-of-band in the Charter Eric Rescorla
- Re: [stir] Including out-of-band in the Charter Hadriel Kaplan
- Re: [stir] Including out-of-band in the Charter Michael Hammer
- [stir] Early Homework (was Re: Moving from BOF to… Dave Crocker
- Re: [stir] Moving from BOF to Charter Richard Shockey
- Re: [stir] Including out-of-band in the Charter Richard Shockey
- Re: [stir] Moving from BOF to Charter Michael Hammer
- Re: [stir] Including out-of-band in the Charter DOLLY, MARTIN C
- Re: [stir] Including out-of-band in the Charter Russ Housley
- Re: [stir] Including out-of-band in the Charter DOLLY, MARTIN C
- Re: [stir] Moving from BOF to Charter Brian Rosen
- Re: [stir] Moving from BOF to Charter (calling pa… philippe.fouquart
- Re: [stir] Including out-of-band in the Charter Richard Barnes
- Re: [stir] Including out-of-band in the Charter Dave Crocker
- Re: [stir] Early Homework (was Re: Moving from BO… Dave Crocker
- Re: [stir] Including out-of-band in the Charter Richard Barnes
- Re: [stir] Including out-of-band in the Charter Dave Crocker
- Re: [stir] Moving from BOF to Charter philippe.fouquart
- Re: [stir] Moving from BOF to Charter Gordon Lennox
- Re: [stir] Moving from BOF to Charter Richard Shockey
- Re: [stir] Including out-of-band in the Charter Richard Barnes
- Re: [stir] Including out-of-band in the Charter Dave Crocker
- Re: [stir] Moving from BOF to Charter Eric Burger
- Re: [stir] Including out-of-band in the Charter Hadriel Kaplan
- Re: [stir] Including out-of-band in the Charter Peterson, Jon
- Re: [stir] Including out-of-band in the Charter DOLLY, MARTIN C
- Re: [stir] Including out-of-band in the Charter Richard Barnes
- Re: [stir] Moving from BOF to Charter Michael Hammer
- Re: [stir] Moving from BOF to Charter Richard Shockey
- Re: [stir] Moving from BOF to Charter Tony Rutkowski
- Re: [stir] Moving from BOF to Charter Alissa Cooper
- Re: [stir] Moving from BOF to Charter Alissa Cooper
- Re: [stir] Moving from BOF to Charter Henning Schulzrinne
- Re: [stir] Moving from BOF to Charter Russ Housley
- Re: [stir] Early Homework (was Re: Moving from BO… Russ Housley
- [stir] Population Size Russ Housley
- Re: [stir] Population Size Dave Crocker
- Re: [stir] Population Size Brian Rosen
- Re: [stir] Population Size Dave Crocker
- Re: [stir] Population Size Hadriel Kaplan
- [stir] What are we trying to do, and where do we … Eric Burger
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Burger
- Re: [stir] Population Size Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] What are we trying to do, and where do… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Tony Rutkowski
- [stir] Legitimate uses of third party Caller ID a… Dan York
- Re: [stir] Legitimate uses of third party Caller … Michael Hammer
- Re: [stir] Including out-of-band in the Charter Paul Kyzivat
- Re: [stir] Legitimate uses of third party Caller … Dan York
- Re: [stir] Early Homework (was Re: Moving from BO… Dave Crocker
- Re: [stir] Legitimate uses of third party Caller … Michael Hammer
- Re: [stir] Legitimate uses of third party Caller … Richard Shockey
- Re: [stir] Legitimate uses of third party Caller … Hadriel Kaplan
- Re: [stir] Legitimate uses of third party Caller … Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Russ Housley
- Re: [stir] Moving from BOF to Charter Russ Housley
- Re: [stir] Moving from BOF to Charter Stephen Farrell
- Re: [stir] Legitimate uses of third party Caller … Michael Hammer
- Re: [stir] Moving from BOF to Charter Hadriel Kaplan
- Re: [stir] Moving from BOF to Charter Stephen Farrell
- Re: [stir] Moving from BOF to Charter Brian Rosen
- Re: [stir] Legitimate uses of third party Caller … Brian Rosen
- Re: [stir] Moving from BOF to Charter Hadriel Kaplan
- Re: [stir] Moving from BOF to Charter Russ Housley
- Re: [stir] Moving from BOF to Charter Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Dave Crocker
- Re: [stir] Moving from BOF to Charter Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Moving from BOF to Charter Stephen Kent
- Re: [stir] Moving from BOF to Charter Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Rescorla
- Re: [stir] Moving from BOF to Charter Richard Shockey
- Re: [stir] Moving from BOF to Charter Michael Hammer
- Re: [stir] Moving from BOF to Charter Russ Housley
- Re: [stir] Early Homework (was Re: Moving from BO… Janet P Gunn
- Re: [stir] Early Homework (was Re: Moving from BO… Russ Housley
- Re: [stir] Moving from BOF to Charter Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Moving from BOF to Charter Richard Shockey
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Moving from BOF to Charter Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Janet P Gunn
- Re: [stir] Privacy Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Moving from BOF to Charter Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Janet P Gunn
- Re: [stir] Privacy Hadriel Kaplan
- Re: [stir] Privacy Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Janet P Gunn
- Re: [stir] Moving from BOF to Charter Stephen Kent
- Re: [stir] Moving from BOF to Charter Richard Shockey
- Re: [stir] Moving from BOF to Charter Lucy Lynch
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Burger
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Burger
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Burger
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Burger
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Rescorla
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- Re: [stir] Moving from BOF to Charter Russ Housley
- Re: [stir] Moving from BOF to Charter Eric Rescorla
- Re: [stir] Moving from BOF to Charter Hadriel Kaplan
- Re: [stir] Population Size Eric Burger
- Re: [stir] Legitimate uses of third party Caller … Eric Burger
- Re: [stir] Moving from BOF to Charter Richard Shockey
- Re: [stir] Legitimate uses of third party Caller … Richard Shockey
- Re: [stir] Moving from BOF to Charter Russ Housley
- Re: [stir] Moving from BOF to Charter Eric Rescorla
- Re: [stir] Moving from BOF to Charter Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Burger
- Re: [stir] Moving from BOF to Charter Eric Burger
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Rescorla
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- Re: [stir] Early Homework (was Re: Moving from BO… Eric Rescorla
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Peterson, Jon
- Re: [stir] Early Homework (was Re: Moving from BO… Henning Schulzrinne
- Re: [stir] Moving from BOF to Charter Henning Schulzrinne
- Re: [stir] Moving from BOF to Charter Brian Rosen
- Re: [stir] Moving from BOF to Charter Henning Schulzrinne
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Dave Crocker
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Moving from BOF to Charter Cullen Jennings (fluffy)
- Re: [stir] Early Homework (was Re: Moving from BO… Dave Crocker
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- Re: [stir] Moving from BOF to Charter Stephen Kent
- Re: [stir] Moving from BOF to Charter Stephen Kent
- Re: [stir] Moving from BOF to Charter Richard Barnes
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… PFAUTZ, PENN L
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Henning Schulzrinne
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- [stir] Digression on CNAM Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Henning Schulzrinne
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Henning Schulzrinne
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Henning Schulzrinne
- Re: [stir] Early Homework (was Re: Moving from BO… Henning Schulzrinne
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Henning Schulzrinne
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Henning Schulzrinne
- Re: [stir] Early Homework (was Re: Moving from BO… Janet P Gunn
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Olle E. Johansson
- Re: [stir] Early Homework (was Re: Moving from BO… Olle E. Johansson
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Henning Schulzrinne
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] CNAM Richard Barnes
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Farrell
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Michael Hammer
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Hannes Tschofenig
- Re: [stir] Early Homework (was Re: Moving from BO… Hadriel Kaplan
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Dwight, Timothy M (Tim)
- Re: [stir] Early Homework (was Re: Moving from BO… Paul Kyzivat
- Re: [stir] Early Homework (was Re: Moving from BO… Brian Rosen
- Re: [stir] Early Homework (was Re: Moving from BO… Richard Shockey
- Re: [stir] Early Homework (was Re: Moving from BO… Stephen Kent
- [stir] CNAM Cullen Jennings (fluffy)
- Re: [stir] CNAM Dave Crocker