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-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA256

Please find below a new version of the proposed charter, trying to take in account all the comments so far.

The discussions are taking place in the ice mailing-list, please do not cross-post.

Thanks.

- ---------------------------------------------------------------------------------

Charter for Working Group

Interactive Connectivity Establishment was published as RFC 5245 in April 2010. Until recently the protocol had seen rather limited deployment. ICE was slow to achieve widespread adoption, as other mechanisms were already being used by the VoIP industry. This situation has changed drastically as ICE is mandatory to implement in WebRTC, a set of technologies developed at the IETF and W3C to standardize Real Time Communication on the Web.

Interactive Connectivity Establishment (ICE) is at the same time a NAT traversal technique, a multihomed address selection technique, and a dual stack address selection technique that works by including a multiplicity of IP addresses and ports in both the request and response messages of a connectivity establishment transaction. The IP addresses and ports provided by each side are paired and tested by peer-to-peer connectivity checks until one of these pair is selected to transport data. ICE follows the end to end principle where the clients themselves discovers, test and choose the network path to use. It makes no assumptions regarding network topology on the local or remote side.

ICE was originally defined for the Offer-Answer (RFC 3264) protocol used by SIP (RFC 3261). Later XMPP (XEP-0176), RTSP (draft-ietf-mmusic-rtsp-nat), RTCWeb (draft-ietf-rtcweb-jsep) and other realtime media establishment protocol have used the protocol. ICE is also used by non-realtime media protocols, like HIP (RFC 5770) and RELOAD (RFC 6940).

The goal of the ICE Working Group is to consolidate the various initiatives to update ICE to make it more suitable for the WebRTC environment but also to all the current usages of ICE. ICE is an application controlled protocol that leverages a set of network defined protocols. The STUN (RFC 5389), TURN (RFC 5766) and related protocol work done in the TRAM working group must be closely synchronised with the work in this working group. Synching with other network related working groups to make sure existing mechanisms like QoS, congestion control and other networking mechanisms still work would be essential if we want to improve how ICE works (MIF, TAPS, TSWG, HOMENET, etc...). From the application side, the users of ICE, there is a need to make sure what is specified is actually usable. Getting input from the application working groups will be essential (RTCWEB, HIP, MMUSIC, P2PSIP).

Milestones

    Jun 2016 Submit Dual-stack Fairness with ICE as Proposed Standard
    Apr 2016 Submit a revision of ICE (RFC 5245) as Proposed Standard
    Jan 2016 Submit Trickle ICE as Proposed Standard

- -- 
Marc Petit-Huguenin
Email: marc@petit-huguenin.org
Blog: http://blog.marc.petit-huguenin.org
Profile: http://www.linkedin.com/in/petithug
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From nobody Thu Sep  3 04:15:23 2015
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Subject: [dispatch] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Stephen Farrell has entered the following ballot position for
charter-ietf-geojson-00-01: Block

When responding, please keep the subject line intact and reply to all
email addresses included in the To and CC lines. (Feel free to cut this
introductory paragraph, however.)



The document, along with other ballot positions, can be found here:
https://datatracker.ietf.org/doc/charter-ietf-geojson/



----------------------------------------------------------------------
BLOCK:
----------------------------------------------------------------------


This seems like a fine thing to do, but I have one 
concern I'd like to chat about before we go ahead.

I could buy the "no privacy issues here" argument except
for the last sentence which says: "As the WG considers
extensibility it will be careful not to preclude
extensions that would allow GeoJSON objects to become
location objects unless the group determines such
extensibility would be harmful." Aside from being hard to
parse, that seems to mean that some extensions could mean
this format does become a RFC6280 Location object, which
would then bring in the privacy and security issues,
previously argued to be out of scope. I think that's a
contradiction. As it happens, I also think that, despite
folks best efforts, RFC6280 isn't an architecture that
worked out that well, so I'd not suggest that this wG try
emulate that with square brackets. Instead, I'd suggest
that this WG be chartered to never take on work with does
have security or privacy consequences (without a
re-charter). 

That'd maybe mean a change in the last sentence such as:

OLD:

   As the WG considers extensibility it will be careful
   not to preclude extensions that would allow GeoJSON
   objects to become location objects unless the group
   determines such extensibility would be harmful. 

NEW:

   In order to continue to validly avoid having to deal
   with the security and privacy issues that would arise,
   this WG will not define any extensions that would have
   the effect of making a geojson object an RFC6280
   location object or location information as defined by
   RFC3693.  Should such an extension be needed,
   re-chartering will be required.

My propsed NEW text is very clunky so probably needs
improving.





From nobody Thu Sep  3 05:23:50 2015
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From: Alissa Cooper <alissa@cooperw.in>
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Hi Stephen,

> On Sep 3, 2015, at 4:15 AM, Stephen Farrell =
<stephen.farrell@cs.tcd.ie> wrote:
>=20
> Stephen Farrell has entered the following ballot position for
> charter-ietf-geojson-00-01: Block
>=20
> When responding, please keep the subject line intact and reply to all
> email addresses included in the To and CC lines. (Feel free to cut =
this
> introductory paragraph, however.)
>=20
>=20
>=20
> The document, along with other ballot positions, can be found here:
> https://datatracker.ietf.org/doc/charter-ietf-geojson/
>=20
>=20
>=20
> ----------------------------------------------------------------------
> BLOCK:
> ----------------------------------------------------------------------
>=20
>=20
> This seems like a fine thing to do, but I have one=20
> concern I'd like to chat about before we go ahead.
>=20
> I could buy the "no privacy issues here" argument except
> for the last sentence which says: "As the WG considers
> extensibility it will be careful not to preclude
> extensions that would allow GeoJSON objects to become
> location objects unless the group determines such
> extensibility would be harmful." Aside from being hard to
> parse, that seems to mean that some extensions could mean
> this format does become a RFC6280 Location object, which
> would then bring in the privacy and security issues,
> previously argued to be out of scope.

Maybe this is a verb tense problem, but I think the points of the entire =
paragraph in question are:=20

1) the format the group intends to create is for representation of =
things that are not location objects
2) even so, depending on how the format is specified, it may be possible =
for them to get used in ways in which they become location objects, in =
which case the privacy and security considerations kick in
3) in defining how to make the format extensible, the group does not =
want to preclude (2) in the future, but=20
4) the group will not be defining specific extensions to achieve (2).

Here is a re-phrase that tries to capture this better:

The WG will be careful to craft its extensibility mechanism such that =
extensions that would allow GeoJSON objects to become location objects =
are not precluded, but will not be defining such extensions itself. =
Should such an extension be needed, re-chartering will be required.

Is that better?

Alissa

> I think that's a
> contradiction. As it happens, I also think that, despite
> folks best efforts, RFC6280 isn't an architecture that
> worked out that well, so I'd not suggest that this wG try
> emulate that with square brackets. Instead, I'd suggest
> that this WG be chartered to never take on work with does
> have security or privacy consequences (without a
> re-charter).=20
>=20
> That'd maybe mean a change in the last sentence such as:
>=20
> OLD:
>=20
>   As the WG considers extensibility it will be careful
>   not to preclude extensions that would allow GeoJSON
>   objects to become location objects unless the group
>   determines such extensibility would be harmful.=20
>=20
> NEW:
>=20
>   In order to continue to validly avoid having to deal
>   with the security and privacy issues that would arise,
>   this WG will not define any extensions that would have
>   the effect of making a geojson object an RFC6280
>   location object or location information as defined by
>   RFC3693.  Should such an extension be needed,
>   re-chartering will be required.
>=20
> My propsed NEW text is very clunky so probably needs
> improving.
>=20
>=20
>=20
>=20
> _______________________________________________
> Geopriv mailing list
> Geopriv@ietf.org
> https://www.ietf.org/mailman/listinfo/geopriv


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Hiya,

On 03/09/15 13:23, Alissa Cooper wrote:
> Hi Stephen,
> 
>> On Sep 3, 2015, at 4:15 AM, Stephen Farrell
>> <stephen.farrell@cs.tcd.ie> wrote:
>> 
>> Stephen Farrell has entered the following ballot position for 
>> charter-ietf-geojson-00-01: Block
>> 
>> When responding, please keep the subject line intact and reply to
>> all email addresses included in the To and CC lines. (Feel free to
>> cut this introductory paragraph, however.)
>> 
>> 
>> 
>> The document, along with other ballot positions, can be found
>> here: https://datatracker.ietf.org/doc/charter-ietf-geojson/
>> 
>> 
>> 
>> ----------------------------------------------------------------------
>>
>> 
BLOCK:
>> ----------------------------------------------------------------------
>>
>>
>>
>> 
This seems like a fine thing to do, but I have one
>> concern I'd like to chat about before we go ahead.
>> 
>> I could buy the "no privacy issues here" argument except for the
>> last sentence which says: "As the WG considers extensibility it
>> will be careful not to preclude extensions that would allow GeoJSON
>> objects to become location objects unless the group determines
>> such extensibility would be harmful." Aside from being hard to 
>> parse, that seems to mean that some extensions could mean this
>> format does become a RFC6280 Location object, which would then
>> bring in the privacy and security issues, previously argued to be
>> out of scope.
> 
> Maybe this is a verb tense problem, but I think the points of the
> entire paragraph in question are:
> 
> 1) the format the group intends to create is for representation of
> things that are not location objects 2) even so, depending on how the
> format is specified, it may be possible for them to get used in ways
> in which they become location objects, in which case the privacy and
> security considerations kick in 3) in defining how to make the format
> extensible, the group does not want to preclude (2) in the future,
> but 4) the group will not be defining specific extensions to achieve
> (2).
> 
> Here is a re-phrase that tries to capture this better:
> 
> The WG will be careful to craft its extensibility mechanism such that
> extensions that would allow GeoJSON objects to become location
> objects are not precluded, but will not be defining such extensions
> itself. Should such an extension be needed, re-chartering will be
> required.
> 
> Is that better?

Yes. Definitely clearer.

However, the "not precluded" is a bit troubling still.

Let me try get to it this way - in the following timeline who/when
would address the security/privacy issues and how'd we be confident
that'd really happen?

t1: This WG does it's planned stuff.
t2: The foo-protocol uses geojson in a PDU (and the bar protocol etc.)
    The foo-wg doesn't consider security/privacy as geojson doesn't
    create location objects
t3: This WG defines how to annotate a location with an identity
    thus creating location objects

Ta,
S.



> 
> Alissa
> 
>> I think that's a contradiction. As it happens, I also think that,
>> despite folks best efforts, RFC6280 isn't an architecture that 
>> worked out that well, so I'd not suggest that this wG try emulate
>> that with square brackets. Instead, I'd suggest that this WG be
>> chartered to never take on work with does have security or privacy
>> consequences (without a re-charter).
>> 
>> That'd maybe mean a change in the last sentence such as:
>> 
>> OLD:
>> 
>> As the WG considers extensibility it will be careful not to
>> preclude extensions that would allow GeoJSON objects to become
>> location objects unless the group determines such extensibility
>> would be harmful.
>> 
>> NEW:
>> 
>> In order to continue to validly avoid having to deal with the
>> security and privacy issues that would arise, this WG will not
>> define any extensions that would have the effect of making a
>> geojson object an RFC6280 location object or location information
>> as defined by RFC3693.  Should such an extension be needed, 
>> re-chartering will be required.
>> 
>> My propsed NEW text is very clunky so probably needs improving.
>> 
>> 
>> 
>> 
>> _______________________________________________ Geopriv mailing
>> list Geopriv@ietf.org 
>> https://www.ietf.org/mailman/listinfo/geopriv
> 


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Subject: [dispatch] Benoit Claise's No Objection on charter-ietf-geojson-00-01: (with COMMENT)
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Benoit Claise has entered the following ballot position for
charter-ietf-geojson-00-01: No Objection

When responding, please keep the subject line intact and reply to all
email addresses included in the To and CC lines. (Feel free to cut this
introductory paragraph, however.)



The document, along with other ballot positions, can be found here:
https://datatracker.ietf.org/doc/charter-ietf-geojson/



----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

One readability improvement.
So many RFC numbers I have to lookup, in this charter: 5870, 7464, 3693,
6280. Sorry I don't know them all by heart.
A good convention is name + RFC, such as "JavaScript Object Notation
(JSON) [RFC7159]"

I guess it's a short-lived WG, right? Two deliverables and then closed,
right?
Would be worth mentioning IMO. In the milestones, that would be fine.



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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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> On Sep 3, 2015, at 5:28 AM, Stephen Farrell =
<stephen.farrell@cs.tcd.ie> wrote:
>=20
>=20
> Hiya,
>=20
> On 03/09/15 13:23, Alissa Cooper wrote:
>> Hi Stephen,
>>=20
>>> On Sep 3, 2015, at 4:15 AM, Stephen Farrell
>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>=20
>>> Stephen Farrell has entered the following ballot position for=20
>>> charter-ietf-geojson-00-01: Block
>>>=20
>>> When responding, please keep the subject line intact and reply to
>>> all email addresses included in the To and CC lines. (Feel free to
>>> cut this introductory paragraph, however.)
>>>=20
>>>=20
>>>=20
>>> The document, along with other ballot positions, can be found
>>> here: https://datatracker.ietf.org/doc/charter-ietf-geojson/
>>>=20
>>>=20
>>>=20
>>> =
----------------------------------------------------------------------
>>>=20
>>>=20
> BLOCK:
>>> =
----------------------------------------------------------------------
>>>=20
>>>=20
>>>=20
>>>=20
> This seems like a fine thing to do, but I have one
>>> concern I'd like to chat about before we go ahead.
>>>=20
>>> I could buy the "no privacy issues here" argument except for the
>>> last sentence which says: "As the WG considers extensibility it
>>> will be careful not to preclude extensions that would allow GeoJSON
>>> objects to become location objects unless the group determines
>>> such extensibility would be harmful." Aside from being hard to=20
>>> parse, that seems to mean that some extensions could mean this
>>> format does become a RFC6280 Location object, which would then
>>> bring in the privacy and security issues, previously argued to be
>>> out of scope.
>>=20
>> Maybe this is a verb tense problem, but I think the points of the
>> entire paragraph in question are:
>>=20
>> 1) the format the group intends to create is for representation of
>> things that are not location objects 2) even so, depending on how the
>> format is specified, it may be possible for them to get used in ways
>> in which they become location objects, in which case the privacy and
>> security considerations kick in 3) in defining how to make the format
>> extensible, the group does not want to preclude (2) in the future,
>> but 4) the group will not be defining specific extensions to achieve
>> (2).
>>=20
>> Here is a re-phrase that tries to capture this better:
>>=20
>> The WG will be careful to craft its extensibility mechanism such that
>> extensions that would allow GeoJSON objects to become location
>> objects are not precluded, but will not be defining such extensions
>> itself. Should such an extension be needed, re-chartering will be
>> required.
>>=20
>> Is that better?
>=20
> Yes. Definitely clearer.
>=20
> However, the "not precluded" is a bit troubling still.

I think the thing is that you don=E2=80=99t want to specify this format =
such that it could never describe the location of a person or a device, =
because that would be an a priori limiting constraint on its utility. So =
the point is to leave the door open via the extensibility mechanism, but =
not design specific extensions to do this (unless there=E2=80=99s a =
re-charter).

>=20
> Let me try get to it this way - in the following timeline who/when
> would address the security/privacy issues and how'd we be confident
> that'd really happen?
>=20
> t1: This WG does it's planned stuff.
> t2: The foo-protocol uses geojson in a PDU (and the bar protocol etc.)
>    The foo-wg doesn't consider security/privacy as geojson doesn't
>    create location objects

I think consideration for privacy/security could happen at t2 depending =
on how the foo-protocol uses the geojson object. So in this case we =
would rely on the remit of the foo-wg (this is the "When a GeoJSON =
object is used in a context where it identifies the location of a Target =
=E2=80=A6=E2=80=9D sentence).

> t3: This WG defines how to annotate a location with an identity
>    thus creating location objects

Then certainly at t3 the geojson WG would address privacy/security. And =
this would be after re-charter.

Alissa

>=20
> Ta,
> S.
>=20
>=20
>=20
>>=20
>> Alissa
>>=20
>>> I think that's a contradiction. As it happens, I also think that,
>>> despite folks best efforts, RFC6280 isn't an architecture that=20
>>> worked out that well, so I'd not suggest that this wG try emulate
>>> that with square brackets. Instead, I'd suggest that this WG be
>>> chartered to never take on work with does have security or privacy
>>> consequences (without a re-charter).
>>>=20
>>> That'd maybe mean a change in the last sentence such as:
>>>=20
>>> OLD:
>>>=20
>>> As the WG considers extensibility it will be careful not to
>>> preclude extensions that would allow GeoJSON objects to become
>>> location objects unless the group determines such extensibility
>>> would be harmful.
>>>=20
>>> NEW:
>>>=20
>>> In order to continue to validly avoid having to deal with the
>>> security and privacy issues that would arise, this WG will not
>>> define any extensions that would have the effect of making a
>>> geojson object an RFC6280 location object or location information
>>> as defined by RFC3693.  Should such an extension be needed,=20
>>> re-chartering will be required.
>>>=20
>>> My propsed NEW text is very clunky so probably needs improving.
>>>=20
>>>=20
>>>=20
>>>=20
>>> _______________________________________________ Geopriv mailing
>>> list Geopriv@ietf.org=20
>>> https://www.ietf.org/mailman/listinfo/geopriv
>>=20


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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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scroll on down...

On 03/09/15 14:14, Alissa Cooper wrote:
> 
>> On Sep 3, 2015, at 5:28 AM, Stephen Farrell
>> <stephen.farrell@cs.tcd.ie> wrote:
>> 
>> 
>> Hiya,
>> 
>> On 03/09/15 13:23, Alissa Cooper wrote:
>>> Hi Stephen,
>>> 
>>>> On Sep 3, 2015, at 4:15 AM, Stephen Farrell 
>>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>> 
>>>> Stephen Farrell has entered the following ballot position for 
>>>> charter-ietf-geojson-00-01: Block
>>>> 
>>>> When responding, please keep the subject line intact and reply
>>>> to all email addresses included in the To and CC lines. (Feel
>>>> free to cut this introductory paragraph, however.)
>>>> 
>>>> 
>>>> 
>>>> The document, along with other ballot positions, can be found 
>>>> here: https://datatracker.ietf.org/doc/charter-ietf-geojson/
>>>> 
>>>> 
>>>> 
>>>> ----------------------------------------------------------------------
>>>>
>>>>
>>
>>>> 
BLOCK:
>>>> ----------------------------------------------------------------------
>>>>
>>>>
>>>>
>>>>
>>
>>>> 
This seems like a fine thing to do, but I have one
>>>> concern I'd like to chat about before we go ahead.
>>>> 
>>>> I could buy the "no privacy issues here" argument except for
>>>> the last sentence which says: "As the WG considers
>>>> extensibility it will be careful not to preclude extensions
>>>> that would allow GeoJSON objects to become location objects
>>>> unless the group determines such extensibility would be
>>>> harmful." Aside from being hard to parse, that seems to mean
>>>> that some extensions could mean this format does become a
>>>> RFC6280 Location object, which would then bring in the privacy
>>>> and security issues, previously argued to be out of scope.
>>> 
>>> Maybe this is a verb tense problem, but I think the points of
>>> the entire paragraph in question are:
>>> 
>>> 1) the format the group intends to create is for representation
>>> of things that are not location objects 2) even so, depending on
>>> how the format is specified, it may be possible for them to get
>>> used in ways in which they become location objects, in which case
>>> the privacy and security considerations kick in 3) in defining
>>> how to make the format extensible, the group does not want to
>>> preclude (2) in the future, but 4) the group will not be defining
>>> specific extensions to achieve (2).
>>> 
>>> Here is a re-phrase that tries to capture this better:
>>> 
>>> The WG will be careful to craft its extensibility mechanism such
>>> that extensions that would allow GeoJSON objects to become
>>> location objects are not precluded, but will not be defining such
>>> extensions itself. Should such an extension be needed,
>>> re-chartering will be required.
>>> 
>>> Is that better?
>> 
>> Yes. Definitely clearer.
>> 
>> However, the "not precluded" is a bit troubling still.
> 
> I think the thing is that you don’t want to specify this format such
> that it could never describe the location of a person or a device,
> because that would be an a priori limiting constraint on its utility.
> So the point is to leave the door open via the extensibility
> mechanism, but not design specific extensions to do this (unless
> there’s a re-charter).
> 
>> 
>> Let me try get to it this way - in the following timeline who/when 
>> would address the security/privacy issues and how'd we be
>> confident that'd really happen?
>> 
>> t1: This WG does it's planned stuff. t2: The foo-protocol uses
>> geojson in a PDU (and the bar protocol etc.) The foo-wg doesn't
>> consider security/privacy as geojson doesn't create location
>> objects
> 
> I think consideration for privacy/security could happen at t2
> depending on how the foo-protocol uses the geojson object. So in this
> case we would rely on the remit of the foo-wg (this is the "When a
> GeoJSON object is used in a context where it identifies the location
> of a Target …” sentence).

But at t2, the foo-wg doesn't know that a geojson object can e.g.
include my photo or FB name or whatever so they can't take that
into account.

> 
>> t3: This WG defines how to annotate a location with an identity 
>> thus creating location objects
> 
> Then certainly at t3 the geojson WG would address privacy/security.
> And this would be after re-charter.

Even if that re-charter says to consider the foo-protocol and
the bar-protocol, it'd likely be too late to handle things well.

On balance I think I'd argue that this charter would be better to
just say "no security/privacy stuff needed" (as it currentlyu does)
but to not get into extensibility and how that might affect privacy
at all.

Cheers,
S.


> 
> Alissa
> 
>> 
>> Ta, S.
>> 
>> 
>> 
>>> 
>>> Alissa
>>> 
>>>> I think that's a contradiction. As it happens, I also think
>>>> that, despite folks best efforts, RFC6280 isn't an architecture
>>>> that worked out that well, so I'd not suggest that this wG try
>>>> emulate that with square brackets. Instead, I'd suggest that
>>>> this WG be chartered to never take on work with does have
>>>> security or privacy consequences (without a re-charter).
>>>> 
>>>> That'd maybe mean a change in the last sentence such as:
>>>> 
>>>> OLD:
>>>> 
>>>> As the WG considers extensibility it will be careful not to 
>>>> preclude extensions that would allow GeoJSON objects to become 
>>>> location objects unless the group determines such
>>>> extensibility would be harmful.
>>>> 
>>>> NEW:
>>>> 
>>>> In order to continue to validly avoid having to deal with the 
>>>> security and privacy issues that would arise, this WG will not 
>>>> define any extensions that would have the effect of making a 
>>>> geojson object an RFC6280 location object or location
>>>> information as defined by RFC3693.  Should such an extension be
>>>> needed, re-chartering will be required.
>>>> 
>>>> My propsed NEW text is very clunky so probably needs
>>>> improving.
>>>> 
>>>> 
>>>> 
>>>> 
>>>> _______________________________________________ Geopriv
>>>> mailing list Geopriv@ietf.org 
>>>> https://www.ietf.org/mailman/listinfo/geopriv
>>> 
> 


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Stephen Farrell has entered the following ballot position for
charter-ietf-geojson-00-01: No Objection

When responding, please keep the subject line intact and reply to all
email addresses included in the To and CC lines. (Feel free to cut this
introductory paragraph, however.)



The document, along with other ballot positions, can be found here:
https://datatracker.ietf.org/doc/charter-ietf-geojson/



----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

please fix last sentence



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From: Alissa Cooper <alissa@cooperw.in>
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Suggestion below.

> On Sep 3, 2015, at 6:19 AM, Stephen Farrell =
<stephen.farrell@cs.tcd.ie> wrote:
>=20
>=20
> scroll on down...
>=20
> On 03/09/15 14:14, Alissa Cooper wrote:
>>=20
>>> On Sep 3, 2015, at 5:28 AM, Stephen Farrell
>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>=20
>>>=20
>>> Hiya,
>>>=20
>>> On 03/09/15 13:23, Alissa Cooper wrote:
>>>> Hi Stephen,
>>>>=20
>>>>> On Sep 3, 2015, at 4:15 AM, Stephen Farrell=20
>>>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>>>=20
>>>>> Stephen Farrell has entered the following ballot position for=20
>>>>> charter-ietf-geojson-00-01: Block
>>>>>=20
>>>>> When responding, please keep the subject line intact and reply
>>>>> to all email addresses included in the To and CC lines. (Feel
>>>>> free to cut this introductory paragraph, however.)
>>>>>=20
>>>>>=20
>>>>>=20
>>>>> The document, along with other ballot positions, can be found=20
>>>>> here: https://datatracker.ietf.org/doc/charter-ietf-geojson/
>>>>>=20
>>>>>=20
>>>>>=20
>>>>> =
----------------------------------------------------------------------
>>>>>=20
>>>>>=20
>>>=20
>>>>>=20
> BLOCK:
>>>>> =
----------------------------------------------------------------------
>>>>>=20
>>>>>=20
>>>>>=20
>>>>>=20
>>>=20
>>>>>=20
> This seems like a fine thing to do, but I have one
>>>>> concern I'd like to chat about before we go ahead.
>>>>>=20
>>>>> I could buy the "no privacy issues here" argument except for
>>>>> the last sentence which says: "As the WG considers
>>>>> extensibility it will be careful not to preclude extensions
>>>>> that would allow GeoJSON objects to become location objects
>>>>> unless the group determines such extensibility would be
>>>>> harmful." Aside from being hard to parse, that seems to mean
>>>>> that some extensions could mean this format does become a
>>>>> RFC6280 Location object, which would then bring in the privacy
>>>>> and security issues, previously argued to be out of scope.
>>>>=20
>>>> Maybe this is a verb tense problem, but I think the points of
>>>> the entire paragraph in question are:
>>>>=20
>>>> 1) the format the group intends to create is for representation
>>>> of things that are not location objects 2) even so, depending on
>>>> how the format is specified, it may be possible for them to get
>>>> used in ways in which they become location objects, in which case
>>>> the privacy and security considerations kick in 3) in defining
>>>> how to make the format extensible, the group does not want to
>>>> preclude (2) in the future, but 4) the group will not be defining
>>>> specific extensions to achieve (2).
>>>>=20
>>>> Here is a re-phrase that tries to capture this better:
>>>>=20
>>>> The WG will be careful to craft its extensibility mechanism such
>>>> that extensions that would allow GeoJSON objects to become
>>>> location objects are not precluded, but will not be defining such
>>>> extensions itself. Should such an extension be needed,
>>>> re-chartering will be required.
>>>>=20
>>>> Is that better?
>>>=20
>>> Yes. Definitely clearer.
>>>=20
>>> However, the "not precluded" is a bit troubling still.
>>=20
>> I think the thing is that you don=E2=80=99t want to specify this =
format such
>> that it could never describe the location of a person or a device,
>> because that would be an a priori limiting constraint on its utility.
>> So the point is to leave the door open via the extensibility
>> mechanism, but not design specific extensions to do this (unless
>> there=E2=80=99s a re-charter).
>>=20
>>>=20
>>> Let me try get to it this way - in the following timeline who/when=20=

>>> would address the security/privacy issues and how'd we be
>>> confident that'd really happen?
>>>=20
>>> t1: This WG does it's planned stuff. t2: The foo-protocol uses
>>> geojson in a PDU (and the bar protocol etc.) The foo-wg doesn't
>>> consider security/privacy as geojson doesn't create location
>>> objects
>>=20
>> I think consideration for privacy/security could happen at t2
>> depending on how the foo-protocol uses the geojson object. So in this
>> case we would rely on the remit of the foo-wg (this is the "When a
>> GeoJSON object is used in a context where it identifies the location
>> of a Target =E2=80=A6=E2=80=9D sentence).
>=20
> But at t2, the foo-wg doesn't know that a geojson object can e.g.
> include my photo or FB name or whatever so they can't take that
> into account.
>=20
>>=20
>>> t3: This WG defines how to annotate a location with an identity=20
>>> thus creating location objects
>>=20
>> Then certainly at t3 the geojson WG would address privacy/security.
>> And this would be after re-charter.
>=20
> Even if that re-charter says to consider the foo-protocol and
> the bar-protocol, it'd likely be too late to handle things well.
>=20
> On balance I think I'd argue that this charter would be better to
> just say "no security/privacy stuff needed" (as it currentlyu does)
> but to not get into extensibility and how that might affect privacy
> at all.

How about this?

OLD
As the WG considers extensibility it will be careful not to
preclude extensions that would allow GeoJSON objects to become location =
objects
unless the group determines such extensibility would be harmful.

NEW
Should extensions that would allow GeoJSON objects to become location =
objects be needed, re-chartering will be required.

Alissa

>=20
> Cheers,
> S.
>=20
>=20
>>=20
>> Alissa
>>=20
>>>=20
>>> Ta, S.
>>>=20
>>>=20
>>>=20
>>>>=20
>>>> Alissa
>>>>=20
>>>>> I think that's a contradiction. As it happens, I also think
>>>>> that, despite folks best efforts, RFC6280 isn't an architecture
>>>>> that worked out that well, so I'd not suggest that this wG try
>>>>> emulate that with square brackets. Instead, I'd suggest that
>>>>> this WG be chartered to never take on work with does have
>>>>> security or privacy consequences (without a re-charter).
>>>>>=20
>>>>> That'd maybe mean a change in the last sentence such as:
>>>>>=20
>>>>> OLD:
>>>>>=20
>>>>> As the WG considers extensibility it will be careful not to=20
>>>>> preclude extensions that would allow GeoJSON objects to become=20
>>>>> location objects unless the group determines such
>>>>> extensibility would be harmful.
>>>>>=20
>>>>> NEW:
>>>>>=20
>>>>> In order to continue to validly avoid having to deal with the=20
>>>>> security and privacy issues that would arise, this WG will not=20
>>>>> define any extensions that would have the effect of making a=20
>>>>> geojson object an RFC6280 location object or location
>>>>> information as defined by RFC3693.  Should such an extension be
>>>>> needed, re-chartering will be required.
>>>>>=20
>>>>> My propsed NEW text is very clunky so probably needs
>>>>> improving.
>>>>>=20
>>>>>=20
>>>>>=20
>>>>>=20
>>>>> _______________________________________________ Geopriv
>>>>> mailing list Geopriv@ietf.org=20
>>>>> https://www.ietf.org/mailman/listinfo/geopriv
>>>>=20
>>=20


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To: Alissa Cooper <alissa@cooperw.in>
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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Better again. You could maybe add that's not expected to happen
during the lifetime of this wg but that'd be fine.

S

On 03/09/15 15:57, Alissa Cooper wrote:
> NEW Should extensions that would allow GeoJSON objects to become
> location objects be needed, re-chartering will be required.


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From: Alissa Cooper <alissa@cooperw.in>
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Ok, one more try and we=E2=80=99re there I think:

OLD
As the WG considers extensibility it will be careful not to
preclude extensions that would allow GeoJSON objects to become location =
objects
unless the group determines such extensibility would be harmful.

NEW
Extensions that would allow GeoJSON objects to become location objects =
are not expected to be defined in the WG. Should that be needed, =
re-chartering will be required.

> On Sep 3, 2015, at 7:58 AM, Stephen Farrell =
<stephen.farrell@cs.tcd.ie> wrote:
>=20
>=20
> Better again. You could maybe add that's not expected to happen
> during the lifetime of this wg but that'd be fine.
>=20
> S
>=20
> On 03/09/15 15:57, Alissa Cooper wrote:
>> NEW Should extensions that would allow GeoJSON objects to become
>> location objects be needed, re-chartering will be required.


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To: Alissa Cooper <alissa@cooperw.in>
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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Lovely.

Thanks,
S.

On 03/09/15 16:02, Alissa Cooper wrote:
> Ok, one more try and we’re there I think:
> 
> OLD
> As the WG considers extensibility it will be careful not to
> preclude extensions that would allow GeoJSON objects to become location objects
> unless the group determines such extensibility would be harmful.
> 
> NEW
> Extensions that would allow GeoJSON objects to become location objects are not expected to be defined in the WG. Should that be needed, re-chartering will be required.
> 
>> On Sep 3, 2015, at 7:58 AM, Stephen Farrell <stephen.farrell@cs.tcd.ie> wrote:
>>
>>
>> Better again. You could maybe add that's not expected to happen
>> during the lifetime of this wg but that'd be fine.
>>
>> S
>>
>> On 03/09/15 15:57, Alissa Cooper wrote:
>>> NEW Should extensions that would allow GeoJSON objects to become
>>> location objects be needed, re-chartering will be required.
> 


From nobody Thu Sep  3 08:49:40 2015
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From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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I have been following this discussion, but haven't been able to make 
sense of it. :-(

IIUC, the question is how to restrict GeoJSON so that it can't be used 
to represent Location Objects (loosely as defined in RF6280) because it 
doesn't have a way to include Privacy Rules. ISTM that this is an 
*impossible* goal.

If you pass a representation of a geographic location where a target 
might be, then it may be possible for that location to be associated 
with a target contextually. This may be true without the knowledge of 
the sending application. (And possibly even without the knowledge of the 
receiving application.) The relationship may be inferred via complex 
data mining.

For that matter, even the statement of the goal is problematic. In 6280 
LO is defined as "location information together with Privacy Rules". I 
guess GeoJSON doesn't aspire to represent privacy rules, but I don't see 
how doing so would be a problem.

Perhaps the goal should be to forbid a GeoJSON object from *containing* 
a representation of a *target* (as defined in 6280). This would not 
prevent a target from being associated with it contextually, but at 
least the users will not need to consider what might be *within* the 
GeoJSON object when analyzing whether there are privacy concerns.

	Thanks,
	Paul

On 9/3/15 10:57 AM, Alissa Cooper wrote:
> Suggestion below.
>
>> On Sep 3, 2015, at 6:19 AM, Stephen Farrell <stephen.farrell@cs.tcd.ie> wrote:
>>
>>
>> scroll on down...
>>
>> On 03/09/15 14:14, Alissa Cooper wrote:
>>>
>>>> On Sep 3, 2015, at 5:28 AM, Stephen Farrell
>>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>>
>>>>
>>>> Hiya,
>>>>
>>>> On 03/09/15 13:23, Alissa Cooper wrote:
>>>>> Hi Stephen,
>>>>>
>>>>>> On Sep 3, 2015, at 4:15 AM, Stephen Farrell
>>>>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>>>>
>>>>>> Stephen Farrell has entered the following ballot position for
>>>>>> charter-ietf-geojson-00-01: Block
>>>>>>
>>>>>> When responding, please keep the subject line intact and reply
>>>>>> to all email addresses included in the To and CC lines. (Feel
>>>>>> free to cut this introductory paragraph, however.)
>>>>>>
>>>>>>
>>>>>>
>>>>>> The document, along with other ballot positions, can be found
>>>>>> here: https://datatracker.ietf.org/doc/charter-ietf-geojson/
>>>>>>
>>>>>>
>>>>>>
>>>>>> ----------------------------------------------------------------------
>>>>>>
>>>>>>
>>>>
>>>>>>
>> BLOCK:
>>>>>> ----------------------------------------------------------------------
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>
>>>>>>
>> This seems like a fine thing to do, but I have one
>>>>>> concern I'd like to chat about before we go ahead.
>>>>>>
>>>>>> I could buy the "no privacy issues here" argument except for
>>>>>> the last sentence which says: "As the WG considers
>>>>>> extensibility it will be careful not to preclude extensions
>>>>>> that would allow GeoJSON objects to become location objects
>>>>>> unless the group determines such extensibility would be
>>>>>> harmful." Aside from being hard to parse, that seems to mean
>>>>>> that some extensions could mean this format does become a
>>>>>> RFC6280 Location object, which would then bring in the privacy
>>>>>> and security issues, previously argued to be out of scope.
>>>>>
>>>>> Maybe this is a verb tense problem, but I think the points of
>>>>> the entire paragraph in question are:
>>>>>
>>>>> 1) the format the group intends to create is for representation
>>>>> of things that are not location objects 2) even so, depending on
>>>>> how the format is specified, it may be possible for them to get
>>>>> used in ways in which they become location objects, in which case
>>>>> the privacy and security considerations kick in 3) in defining
>>>>> how to make the format extensible, the group does not want to
>>>>> preclude (2) in the future, but 4) the group will not be defining
>>>>> specific extensions to achieve (2).
>>>>>
>>>>> Here is a re-phrase that tries to capture this better:
>>>>>
>>>>> The WG will be careful to craft its extensibility mechanism such
>>>>> that extensions that would allow GeoJSON objects to become
>>>>> location objects are not precluded, but will not be defining such
>>>>> extensions itself. Should such an extension be needed,
>>>>> re-chartering will be required.
>>>>>
>>>>> Is that better?
>>>>
>>>> Yes. Definitely clearer.
>>>>
>>>> However, the "not precluded" is a bit troubling still.
>>>
>>> I think the thing is that you don’t want to specify this format such
>>> that it could never describe the location of a person or a device,
>>> because that would be an a priori limiting constraint on its utility.
>>> So the point is to leave the door open via the extensibility
>>> mechanism, but not design specific extensions to do this (unless
>>> there’s a re-charter).
>>>
>>>>
>>>> Let me try get to it this way - in the following timeline who/when
>>>> would address the security/privacy issues and how'd we be
>>>> confident that'd really happen?
>>>>
>>>> t1: This WG does it's planned stuff. t2: The foo-protocol uses
>>>> geojson in a PDU (and the bar protocol etc.) The foo-wg doesn't
>>>> consider security/privacy as geojson doesn't create location
>>>> objects
>>>
>>> I think consideration for privacy/security could happen at t2
>>> depending on how the foo-protocol uses the geojson object. So in this
>>> case we would rely on the remit of the foo-wg (this is the "When a
>>> GeoJSON object is used in a context where it identifies the location
>>> of a Target …” sentence).
>>
>> But at t2, the foo-wg doesn't know that a geojson object can e.g.
>> include my photo or FB name or whatever so they can't take that
>> into account.
>>
>>>
>>>> t3: This WG defines how to annotate a location with an identity
>>>> thus creating location objects
>>>
>>> Then certainly at t3 the geojson WG would address privacy/security.
>>> And this would be after re-charter.
>>
>> Even if that re-charter says to consider the foo-protocol and
>> the bar-protocol, it'd likely be too late to handle things well.
>>
>> On balance I think I'd argue that this charter would be better to
>> just say "no security/privacy stuff needed" (as it currentlyu does)
>> but to not get into extensibility and how that might affect privacy
>> at all.
>
> How about this?
>
> OLD
> As the WG considers extensibility it will be careful not to
> preclude extensions that would allow GeoJSON objects to become location objects
> unless the group determines such extensibility would be harmful.
>
> NEW
> Should extensions that would allow GeoJSON objects to become location objects be needed, re-chartering will be required.
>
> Alissa
>
>>
>> Cheers,
>> S.
>>
>>
>>>
>>> Alissa
>>>
>>>>
>>>> Ta, S.
>>>>
>>>>
>>>>
>>>>>
>>>>> Alissa
>>>>>
>>>>>> I think that's a contradiction. As it happens, I also think
>>>>>> that, despite folks best efforts, RFC6280 isn't an architecture
>>>>>> that worked out that well, so I'd not suggest that this wG try
>>>>>> emulate that with square brackets. Instead, I'd suggest that
>>>>>> this WG be chartered to never take on work with does have
>>>>>> security or privacy consequences (without a re-charter).
>>>>>>
>>>>>> That'd maybe mean a change in the last sentence such as:
>>>>>>
>>>>>> OLD:
>>>>>>
>>>>>> As the WG considers extensibility it will be careful not to
>>>>>> preclude extensions that would allow GeoJSON objects to become
>>>>>> location objects unless the group determines such
>>>>>> extensibility would be harmful.
>>>>>>
>>>>>> NEW:
>>>>>>
>>>>>> In order to continue to validly avoid having to deal with the
>>>>>> security and privacy issues that would arise, this WG will not
>>>>>> define any extensions that would have the effect of making a
>>>>>> geojson object an RFC6280 location object or location
>>>>>> information as defined by RFC3693.  Should such an extension be
>>>>>> needed, re-chartering will be required.
>>>>>>
>>>>>> My propsed NEW text is very clunky so probably needs
>>>>>> improving.
>>>>>>
>>>>>>
>>>>>>
>>>>>>
>>>>>> _______________________________________________ Geopriv
>>>>>> mailing list Geopriv@ietf.org
>>>>>> https://www.ietf.org/mailman/listinfo/geopriv
>>>>>
>>>
>
> _______________________________________________
> dispatch mailing list
> dispatch@ietf.org
> https://www.ietf.org/mailman/listinfo/dispatch
>


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From: "Carl Reed" <creed@opengeospatial.org>
To: "Alissa Cooper" <alissa@cooperw.in>, "Stephen Farrell" <stephen.farrell@cs.tcd.ie>
References: <20150903111519.12341.48799.idtracker@ietfa.amsl.com> <CAFC1CD0-43EE-4F40-A755-C51D610FBD9A@cooperw.in> <55E83CFF.1040508@cs.tcd.ie> <99B958BA-B141-43D0-A7FB-26ABFDFD274A@cooperw.in> <55E848E3.10403@cs.tcd.ie> <88EE4F71-A95D-478B-B38C-B76D12D8873F@cooperw.in> <55E86027.9050903@cs.tcd.ie> <118F4B72-CD5A-4870-9E6D-D348CD6D2CCC@cooperw.in>
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Date: Thu, 3 Sep 2015 09:51:54 -0600
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Cc: geopriv@ietf.org, Scott Simmons <ssimmons@opengeospatial.org>, dispatch@ietf.org, Erik Wilde <dret@berkeley.edu>, IESG <iesg@ietf.org>
Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Sorry to jump in. I have now read the entire thread, reviewed the charter=
,=20
and reviewed a number of RFCs on this topic (starting with 4119). Been a=20
while! Before starting, I wish to state that I am not opposed to this WG=20
activity - GeoJSON is an important spec and one now being used in OGC=20
standards work as informational. I just have some concerns.

In my mind, there is perhaps a more fundamental question: What is a Locat=
ion=20
Object? Back with the LO activity first started, the focus was on extendi=
ng=20
PIDF to include location content. From that perspective, privacy and=20
location are closely coupled. However, over time the use of the location=20
object became uncoupled from PIDF and as a result a number of other RFCs =
now=20
speak to how to use a LO with SIP, RADIUS, and so on. Essentially, a LO c=
an=20
also be viewed as a stand alone package of location content with addition=
al=20
attributes such as uncertainty. When I worked on these RFC, I never viewe=
d=20
LO as being tightly coupled with privacy but always viewed the LO as a da=
ta=20
package that could be used with any number of other standards/specs or ev=
en=20
as a standard alone payload. This is exactly what has happened. Don't get=
 me=20
wrong - the privacy implications associated with location are critical - =
and=20
scary. Predictive analytics experiments have shown that future individual=
=20
movement activity can be predicted with close to 95% accuracy by analyzin=
g=20
past movement behavior (a joint Harvard/MIT study).

Therefore, I would suggest that a GeoJSON encoded payload is a location=20
object. Consider that the PIDF-LO geodetic model is encoded using GML. Th=
e=20
abstract model for geometry used in GML is ISO 19107: Spatial Schema (whi=
ch=20
is now in revision). The GeoJSON geometry model is also based on ISO 1910=
7.=20
The main difference between the two (other than the LO requirement for=20
additional geometry types) is that GeoJSON encodes coordinates as=20
longitude/latitude. GML encodes coordinates as latitude-longitude. There =
are=20
also differences in how other coordinate reference systems are handled.=20
While these differences are properly documented, I would strongly encoura=
ge=20
the planned activity to consider:

1. Documenting the relationship (similarities and differences) between=20
GeoJSON and a LO. This would allow developers to choose the appropriate=20
implementation approach.
2. Have a section on threat analysis and security
3. Speak to how privacy issues could be addressed (back to item 1 also).

Perhaps I am being overly sensitive but location and privacy (along with=20
provenance and uncertainty) are coming to the fore as major standards=20
issues. The OGC is working these standards related issues more and more.=20
Much of this is being driven by requirements to use location content=20
associated "citizens as scientists" activities, volunteered geographic=20
information, IoT, Smart Cities, and on and on.

I know the GeoJSON authors do not wish to "overload" the GeoJSON spec. As=
=20
such, I suspect many of my concerns could be easily addressed by referenc=
ing=20
appropriate content from existing IETF RFCs. For example, the content of=20
7459 Uncertainty and Confidence is quite appropriate for a GeoJSON encodi=
ng.=20
Also, 7459 was reviewed and commented on by OGC Members :-)

Sorry for the long posting.

Regards

Carl Reed
Geospatial Standards geek

-----Original Message-----=20
From: Alissa Cooper
Sent: Thursday, September 03, 2015 9:02 AM
To: Stephen Farrell
Cc: geopriv@ietf.org ; dispatch@ietf.org ; Erik Wilde ; IESG
Subject: Re: [Geopriv] Stephen Farrell's Block on=20
charter-ietf-geojson-00-01: (with BLOCK)

Ok, one more try and we=E2=80=99re there I think:

OLD
As the WG considers extensibility it will be careful not to
preclude extensions that would allow GeoJSON objects to become location=20
objects
unless the group determines such extensibility would be harmful.

NEW
Extensions that would allow GeoJSON objects to become location objects ar=
e=20
not expected to be defined in the WG. Should that be needed, re-charterin=
g=20
will be required.

> On Sep 3, 2015, at 7:58 AM, Stephen Farrell <stephen.farrell@cs.tcd.ie>=
=20
> wrote:
>
>
> Better again. You could maybe add that's not expected to happen
> during the lifetime of this wg but that'd be fine.
>
> S
>
> On 03/09/15 15:57, Alissa Cooper wrote:
>> NEW Should extensions that would allow GeoJSON objects to become
>> location objects be needed, re-chartering will be required.

_______________________________________________
Geopriv mailing list
Geopriv@ietf.org
https://www.ietf.org/mailman/listinfo/geopriv=20


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From: Robin Wilton <wilton@isoc.org>
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
Thread-Topic: [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Sorry, only just seen this thread - but I have read back through the =
dialogue.

I don=92t want to propose a change to the final suggested text, but I =
would like to check an assumption (of mine) about privacy risk.

In one of his replies, Stephen gave a timeline to illustrate how =
something might be developed in compliance with the GeoJSON spec and =
*not*, in itself, give rise to privacy concerns, but might subsequently =
be extended/modified in such a way *did* give rise to privacy concerns.

The assumption I wanted to check was this: I assume (having been through =
a similar cycle in another standards development context) that this is =
another instance of a recurring problem - namely, that if you design =
specs to be =93composable=94, you have to deal with the possibility that =
one apparently innocuous element could be combined with another element =
in ways that make it more harmful. The question then is, what level of =
(in this case privacy-related) warning/disclaimer should you put on the =
element that, on its own, is harmless.

As I say, I don=92t want to change the text proposed, just to check if =
the problem, here, is of the species I=92ve described above.

Yrs.,
Robin

Robin Wilton
Technical Outreach Director - Identity and Privacy
Internet Society

email: wilton@isoc.org
Phone: +44 705 005 2931
Twitter: @futureidentity

On 3 Sep 2015, at 16:03, Stephen Farrell <stephen.farrell@cs.tcd.ie> =
wrote:

>=20
> Lovely.
>=20
> Thanks,
> S.
>=20
> On 03/09/15 16:02, Alissa Cooper wrote:
>> Ok, one more try and we=92re there I think:
>>=20
>> OLD
>> As the WG considers extensibility it will be careful not to
>> preclude extensions that would allow GeoJSON objects to become =
location objects
>> unless the group determines such extensibility would be harmful.
>>=20
>> NEW
>> Extensions that would allow GeoJSON objects to become location =
objects are not expected to be defined in the WG. Should that be needed, =
re-chartering will be required.
>>=20
>>> On Sep 3, 2015, at 7:58 AM, Stephen Farrell =
<stephen.farrell@cs.tcd.ie> wrote:
>>>=20
>>>=20
>>> Better again. You could maybe add that's not expected to happen
>>> during the lifetime of this wg but that'd be fine.
>>>=20
>>> S
>>>=20
>>> On 03/09/15 15:57, Alissa Cooper wrote:
>>>> NEW Should extensions that would allow GeoJSON objects to become
>>>> location objects be needed, re-chartering will be required.
>>=20
>=20
> _______________________________________________
> Geopriv mailing list
> Geopriv@ietf.org
> https://www.ietf.org/mailman/listinfo/geopriv


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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dwindows-1252"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;">Sorry, =
only just seen this thread - but I have read back through the =
dialogue.&nbsp;<div><br></div><div>I don=92t want to propose a change to =
the final suggested text, but I would like to check an assumption (of =
mine) about privacy risk.</div><div><br></div><div>In one of his =
replies, Stephen gave a timeline to illustrate how something might be =
developed in compliance with the GeoJSON spec and *not*, in itself, give =
rise to privacy concerns, but might subsequently be extended/modified in =
such a way *did* give rise to privacy =
concerns.</div><div><br></div><div>The assumption I wanted to check was =
this: I assume (having been through a similar cycle in another standards =
development context) that this is another instance of a recurring =
problem - namely, that if you design specs to be =93composable=94, you =
have to deal with the possibility that one apparently innocuous element =
could be combined with another element in ways that make it more =
harmful. The question then is, what level of (in this case =
privacy-related) warning/disclaimer should you put on the element that, =
on its own, is harmless.</div><div><br></div><div>As I say, I don=92t =
want to change the text proposed, just to check if the problem, here, is =
of the species I=92ve described =
above.</div><div><br></div><div>Yrs.,</div><div>Robin&nbsp;<div><br><div =
apple-content-edited=3D"true">
<span class=3D"Apple-style-span" style=3D"border-collapse: separate; =
color: rgb(0, 0, 0); font-family: Helvetica; font-style: normal; =
font-variant: normal; font-weight: normal; letter-spacing: normal; =
line-height: normal; orphans: 2; text-align: -webkit-auto; text-indent: =
0px; text-transform: none; white-space: normal; widows: 2; word-spacing: =
0px; -webkit-border-horizontal-spacing: 0px; =
-webkit-border-vertical-spacing: 0px; =
-webkit-text-decorations-in-effect: none; -webkit-text-size-adjust: =
auto; -webkit-text-stroke-width: 0px;  ">Robin Wilton<br>Technical =
Outreach Director - Identity and&nbsp;Privacy<br>Internet =
Society<br><br>email: <a =
href=3D"mailto:wilton@isoc.org">wilton@isoc.org</a><br>Phone: +44 705 =
005 2931<br>Twitter: @futureidentity</span>

</div>
<br><div><div>On 3 Sep 2015, at 16:03, Stephen Farrell &lt;<a =
href=3D"mailto:stephen.farrell@cs.tcd.ie">stephen.farrell@cs.tcd.ie</a>&gt=
; wrote:</div><br class=3D"Apple-interchange-newline"><blockquote =
type=3D"cite"><br>Lovely.<br><br>Thanks,<br>S.<br><br>On 03/09/15 16:02, =
Alissa Cooper wrote:<br><blockquote type=3D"cite">Ok, one more try and =
we=92re there I think:<br><br>OLD<br>As the WG considers extensibility =
it will be careful not to<br>preclude extensions that would allow =
GeoJSON objects to become location objects<br>unless the group =
determines such extensibility would be harmful.<br><br>NEW<br>Extensions =
that would allow GeoJSON objects to become location objects are not =
expected to be defined in the WG. Should that be needed, re-chartering =
will be required.<br><br><blockquote type=3D"cite">On Sep 3, 2015, at =
7:58 AM, Stephen Farrell &lt;<a =
href=3D"mailto:stephen.farrell@cs.tcd.ie">stephen.farrell@cs.tcd.ie</a>&gt=
; wrote:<br><br><br>Better again. You could maybe add that's not =
expected to happen<br>during the lifetime of this wg but that'd be =
fine.<br><br>S<br><br>On 03/09/15 15:57, Alissa Cooper =
wrote:<br><blockquote type=3D"cite">NEW Should extensions that would =
allow GeoJSON objects to become<br>location objects be needed, =
re-chartering will be =
required.<br></blockquote></blockquote><br></blockquote><br>______________=
_________________________________<br>Geopriv mailing list<br><a =
href=3D"mailto:Geopriv@ietf.org">Geopriv@ietf.org</a><br>https://www.ietf.=
org/mailman/listinfo/geopriv<br></blockquote></div><br></div></div></body>=
</html>=

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From nobody Thu Sep  3 10:34:03 2015
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Subject: [dispatch] (Fwd) New Version Notification for draft-tveretin-dispatch-remote-01.txt
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Dear All,
I want to discuss new ideas. This is a new version of my draft. I will insist on it. I'm sure this is 
not the final version - references need to check. I don't know if I need comparison with RFC 
3891, or should I remove any reference to it. Some text is commented out of XML.

------- Forwarded message follows -------
From:	internet-drafts@ietf.org
To:	"Anton Tveretin" <fas_vm@surguttel.ru>, "Anton Tveretin"
	<fas_vm@surguttel.ru>
Subject:	New Version Notification for draft-tveretin-dispatch-remote-01.txt
Date sent:	Tue, 01 Sep 2015 12:33:38 -0700



A new version of I-D, draft-tveretin-dispatch-remote-01.txt
has been successfully submitted by Anton Tveretin and posted to the
IETF repository.

Name:		draft-tveretin-dispatch-remote
Revision:	01
Title:		Remote Call Control and Call Pick-up in SIP
Document date:	2015-09-01
Group:		Individual Submission
Pages:		10
URL:            https://www.ietf.org/internet-drafts/draft-tveretin-dispatch-remote-01.txt
Status:         https://datatracker.ietf.org/doc/draft-tveretin-dispatch-remote/
Htmlized:       https://tools.ietf.org/html/draft-tveretin-dispatch-remote-01
Diff:           https://www.ietf.org/rfcdiff?url2=draft-tveretin-dispatch-remote-01

Abstract:
   This memo defines a mechanism by which a SIP user agent could inspect
   calls at another user agent, and control a call, including picking up
   for itself.

                                                                                  


Please note that it may take a couple of minutes from the time of submission
until the htmlized version and diff are available at tools.ietf.org.

The IETF Secretariat

------- End of forwarded message -------


From nobody Thu Sep  3 12:22:39 2015
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On 9/3/15 13:15, Paul Kyzivat wrote:
> On 9/3/15 1:33 PM, Anton Tveretin wrote:
>> Dear All,
>> I want to discuss new ideas. This is a new version of my draft. I 
>> will insist on it.
>
> Insist on what?
>
>> I'm sure this is
>> not the final version - references need to check. I don't know if I 
>> need comparison with RFC
>> 3891, or should I remove any reference to it. Some text is commented 
>> out of XML.
>
> I would expect to see *much* more in the Security Considerations 
> section. This functionality could be used to do lots of bad things. 
> There should be a discussion of the threats and how they can be mitigated.

The thing is, we've already gone through this exercise, including the 
security analysis to make sure it's safe to deploy. The comparison here 
isn't against just RFC 3891; it's against the entire call-control 
framework that we invested thousands of engineering hours in developing 
and publishing. Reading and really understanding the philosophy of 
RFC5850 will go a long way towards explaining how this kind of call 
control needs to work.

In my opinion, the bullet list in section 1 of RFC5850 is some of the 
most important text ever written on the topic of SIP.

/a


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To: Carl Reed <creed@opengeospatial.org>
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Cc: geopriv mailing list <geopriv@ietf.org>, dispatch@ietf.org, Erik Wilde <dret@berkeley.edu>, Scott Simmons <ssimmons@opengeospatial.org>, Stephen Farrell <stephen.farrell@cs.tcd.ie>, IESG <iesg@ietf.org>
Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Hi Carl,

Thanks for this. I think the paragraph in the charter about whether =
GeoJSON objects are LOs was focusing on the target identity aspect. That =
is, the definitions of LO given in RFC 3693 and RFC 6280 both assume =
that a location object describes the location of a target device. I =
definitely appreciate that there are other implications of saying =
something is or is not a LO, so perhaps the charter needs some =
re-phrasing.

The current thinking coming out of IETF 93 seemed to be that the GeoJSON =
spec will define GeoJSON objects such that they represent geographic =
features only and do not specify associations between geographic =
features and particular devices. Of course, it will be fairly trivial =
for developers to associate those objects with target identities of some =
sort =E2=80=94 the whole point of specifying a json format is to make it =
easier to use geo information in applications. And if the format is =
built to be extensible, which generally would be a good thing, that =
raises the question about the point at which we need to deal with the =
associated privacy and security issues at the spec level should the =
format be extended to associate a location with a target. To put it =
another way, the base spec could be written (1) to preclude =
extensibility of this sort, (2) to allow extensibility of this sort with =
the expectation that when extensions are defined, the associated privacy =
and security implications will be addressed, or (3) to allow =
extensibility of this sort and explain how future extensions need to =
address privacy and security. Personally I think (1) is unlikely given =
the versatility of json. The text Stephen and I were debating was aimed =
at (2). You seem to be suggesting (3). Does that seem like an accurate =
assessment?

Alissa

> On Sep 3, 2015, at 8:51 AM, Carl Reed <creed@opengeospatial.org> =
wrote:
>=20
> Sorry to jump in. I have now read the entire thread, reviewed the =
charter, and reviewed a number of RFCs on this topic (starting with =
4119). Been a while! Before starting, I wish to state that I am not =
opposed to this WG activity - GeoJSON is an important spec and one now =
being used in OGC standards work as informational. I just have some =
concerns.
>=20
> In my mind, there is perhaps a more fundamental question: What is a =
Location Object? Back with the LO activity first started, the focus was =
on extending PIDF to include location content. =46rom that perspective, =
privacy and location are closely coupled. However, over time the use of =
the location object became uncoupled from PIDF and as a result a number =
of other RFCs now speak to how to use a LO with SIP, RADIUS, and so on. =
Essentially, a LO can also be viewed as a stand alone package of =
location content with additional attributes such as uncertainty. When I =
worked on these RFC, I never viewed LO as being tightly coupled with =
privacy but always viewed the LO as a data package that could be used =
with any number of other standards/specs or even as a standard alone =
payload. This is exactly what has happened. Don't get me wrong - the =
privacy implications associated with location are critical - and scary. =
Predictive analytics experiments have shown that future individual =
movement activity can be predicted with close to 95% accuracy by =
analyzing past movement behavior (a joint Harvard/MIT study).
>=20
> Therefore, I would suggest that a GeoJSON encoded payload is a =
location object. Consider that the PIDF-LO geodetic model is encoded =
using GML. The abstract model for geometry used in GML is ISO 19107: =
Spatial Schema (which is now in revision). The GeoJSON geometry model is =
also based on ISO 19107. The main difference between the two (other than =
the LO requirement for additional geometry types) is that GeoJSON =
encodes coordinates as longitude/latitude. GML encodes coordinates as =
latitude-longitude. There are also differences in how other coordinate =
reference systems are handled. While these differences are properly =
documented, I would strongly encourage the planned activity to consider:
>=20
> 1. Documenting the relationship (similarities and differences) between =
GeoJSON and a LO. This would allow developers to choose the appropriate =
implementation approach.
> 2. Have a section on threat analysis and security
> 3. Speak to how privacy issues could be addressed (back to item 1 =
also).
>=20
> Perhaps I am being overly sensitive but location and privacy (along =
with provenance and uncertainty) are coming to the fore as major =
standards issues. The OGC is working these standards related issues more =
and more. Much of this is being driven by requirements to use location =
content associated "citizens as scientists" activities, volunteered =
geographic information, IoT, Smart Cities, and on and on.
>=20
> I know the GeoJSON authors do not wish to "overload" the GeoJSON spec. =
As such, I suspect many of my concerns could be easily addressed by =
referencing appropriate content from existing IETF RFCs. For example, =
the content of 7459 Uncertainty and Confidence is quite appropriate for =
a GeoJSON encoding. Also, 7459 was reviewed and commented on by OGC =
Members :-)
>=20
> Sorry for the long posting.
>=20
> Regards
>=20
> Carl Reed
> Geospatial Standards geek
>=20
> -----Original Message----- From: Alissa Cooper
> Sent: Thursday, September 03, 2015 9:02 AM
> To: Stephen Farrell
> Cc: geopriv@ietf.org ; dispatch@ietf.org ; Erik Wilde ; IESG
> Subject: Re: [Geopriv] Stephen Farrell's Block on =
charter-ietf-geojson-00-01: (with BLOCK)
>=20
> Ok, one more try and we=E2=80=99re there I think:
>=20
> OLD
> As the WG considers extensibility it will be careful not to
> preclude extensions that would allow GeoJSON objects to become =
location objects
> unless the group determines such extensibility would be harmful.
>=20
> NEW
> Extensions that would allow GeoJSON objects to become location objects =
are not expected to be defined in the WG. Should that be needed, =
re-chartering will be required.
>=20
>> On Sep 3, 2015, at 7:58 AM, Stephen Farrell =
<stephen.farrell@cs.tcd.ie> wrote:
>>=20
>>=20
>> Better again. You could maybe add that's not expected to happen
>> during the lifetime of this wg but that'd be fine.
>>=20
>> S
>>=20
>> On 03/09/15 15:57, Alissa Cooper wrote:
>>> NEW Should extensions that would allow GeoJSON objects to become
>>> location objects be needed, re-chartering will be required.
>=20
> _______________________________________________
> Geopriv mailing list
> Geopriv@ietf.org
> https://www.ietf.org/mailman/listinfo/geopriv=20


From nobody Tue Sep  8 07:49:52 2015
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From: Tessa Fallon <tessa.fallon@gmail.com>
Date: Tue, 8 Sep 2015 10:49:07 -0400
Message-ID: <CADK0Wux2cUnNyyQ9EfJPM55tQnPL2wR671Ze0apZ8OidtadTfg@mail.gmail.com>
To: dispatch@ietf.org
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Subject: [dispatch] Proposed charter for CELLAR: Codec Encoding for LossLess Archiving and Realtime transmission
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--001a113ff69c29205e051f3d7ae9
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After presenting on FFV1 and Matroska at IETF 94 this past summer, we have
incorporated feedback and input from IETF members to draft a new charter
for a proposed working group that includes FFV1, Matroska, and FLAC.

I look forward to discussing the proposed charter, which is included below.

Best wishes,

Tessa Fallon
*_________________*

*Proposed Name*: CELLAR: Codec Encoding for LossLess Archiving and Realtime
transmission

The preservation of audiovisual materials faces challenges from
technological obsolescence, analog media deterioration, and the use of
proprietary formats that lack formal open standards. While obsolescence and
material degradation are widely addressed, the standardization of open,
transparent, self-descriptive, lossless formats remains an important
mission to be undertaken by the open source community.

FFV1 is a lossless video codec and Matroska is an extensible media
container based on EBML (Extensible Binary Meta Language), a binary XML
format. There are open source implementations of both formats, and an
increasing interest in and support for use of FFV1 and Matroska. However,
there are concerns about the sustainability and credibility of existing
specifications for the long-term use of these formats. These existing
specifications require broader review and formalization in order to
encourage widespread adoption.

There is also a need for a lossless audio format to complement the lossless
video codec and container format. FLAC is a lossless audio codec that has
seen widespread adoption in a number of different applications
including archival
applications. While there are open source implementations of the codec, no
formal standards for either the codec itself or its use in container
formats currently exist. Review and formalization of the FLAC codec
standard and its use in Matroska container formats is needed for wider
adoption.

Using existing work done by the development communities of Matroska, FFV1,
and FLAC, the Working Group will formalize specifications for these open
and lossless formats. In order to provide authoritative, standardized
specifications for users and developers, the Working Group will seek
consensus throughout the process of refining and formalizing these
standards. Existing specifications can be accessed here:

Specifications:
FFV1: https://mediaarea.net/temp/ffv1.html
Matroska: http://matroska.org/technical/specs/index.html
EBML: http://matroska-org.github.io/libebml/specs.html
FLAC: https://xiph.org/flac/format.html

Development Versions:
FFV1: https://github.com/ffmpeg/ffv1
Matroska:
https://github.com/Matroska-Org/foundation-source/blob/master/spectool/specdata.xml
EBML: https://github.com/Matroska-Org/ebml-specification

The Working Group will seek consensus and refinements for specifications
for both FFV1 and Matroska in order to provide authoritative, standardized
specifications for users and developers. Backward compatibility with
existing versions 0-3 of the FFV1 and Matroska specifications will be an
important goal, while also reviewing and refining the current version 4
under active development. Although not encouraged, non-backwards-compatible
changes to the input specifications will be acceptable if the Working Group
determines that the modifications are required to meet the group's
technical objectives, provided that the reasons for these changes are
clearly documented.

*Deliverables:*

   - Informational specification for Matroska container format versions 1,
   2 and 3 to IESG for publication


   - Standards Track specification for Matroska container format version 4
   to IESG for publication


   - Informational specification for FFV1 video codec versions 0, 1 and 3
   to IESG for publication


   - Standards Track specification for FFV1 video codec version 4 to IESG
   for publication


   - Standards Track specification for FLAC audio codec to IESG for
   publication

--001a113ff69c29205e051f3d7ae9
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr"><div id=3D"magicdomid2" class=3D"" style=3D"padding-right:=
1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-heigh=
t:17px">After presenting on FFV1 and Matroska at IETF 94 this past summer, =
we have incorporated feedback and input from IETF members to draft a new ch=
arter for a proposed working group that includes FFV1, Matroska, and FLAC.<=
/div><div id=3D"magicdomid2" class=3D"" style=3D"padding-right:1px;color:rg=
b(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><br>=
</div><div id=3D"magicdomid2" class=3D"" style=3D"padding-right:1px;color:r=
gb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">I l=
ook forward to discussing the proposed charter, which is included below.</d=
iv><div id=3D"magicdomid2" class=3D"" style=3D"padding-right:1px;color:rgb(=
0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><br></=
div><div id=3D"magicdomid2" class=3D"" style=3D"padding-right:1px;color:rgb=
(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">Best =
wishes,</div><div id=3D"magicdomid2" class=3D"" style=3D"padding-right:1px;=
color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17=
px"><br></div><div id=3D"magicdomid2" class=3D"" style=3D"padding-right:1px=
;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:1=
7px">Tessa Fallon</div><div id=3D"magicdomid2" class=3D"" style=3D"padding-=
right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line=
-height:17px"><span class=3D"" style=3D"padding-top:1px;padding-bottom:1px"=
><i>_________________</i></span></div><div id=3D"magicdomid2" class=3D"" st=
yle=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font=
-size:13px;line-height:17px"><span class=3D"" style=3D"padding-top:1px;padd=
ing-bottom:1px"><i><br></i></span></div><div id=3D"magicdomid2" class=3D"" =
style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;fo=
nt-size:13px;line-height:17px"><span class=3D"" style=3D"padding-top:1px;pa=
dding-bottom:1px"><i>Proposed Name</i></span><span class=3D"" style=3D"padd=
ing-top:1px;padding-bottom:1px">: CELLAR: Codec Encoding for LossLess Archi=
ving and Realtime transmission</span></div><div id=3D"magicdomid3" class=3D=
"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif=
;font-size:13px;line-height:17px"><span class=3D"" style=3D"padding-top:1px=
;padding-bottom:1px">=C2=A0</span></div><div id=3D"magicdomid4" class=3D"" =
style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;fo=
nt-size:13px;line-height:17px"><span class=3D"" style=3D"padding-top:1px;pa=
dding-bottom:1px">The preservation of audiovisual materials faces challenge=
s from technological obsolescence, analog media deterioration, and the use =
of proprietary formats that lack formal open standards. While obsolescence =
and material degradation are widely addressed, the standardization of open,=
 transparent, self-descriptive, lossless formats remains an important missi=
on to be undertaken by the open source community.</span></div><div id=3D"ma=
gicdomid5" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-fami=
ly:Arial,sans-serif;font-size:13px;line-height:17px"><span class=3D"" style=
=3D"padding-top:1px;padding-bottom:1px">=C2=A0</span></div><div id=3D"magic=
domid6" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family:=
Arial,sans-serif;font-size:13px;line-height:17px"><span class=3D"" style=3D=
"padding-top:1px;padding-bottom:1px">FFV1 is a lossless video codec and Mat=
roska is an extensible media container based on EBML (Extensible Binary Met=
a Language), a binary XML format. There are open source implementations of =
both formats, and an increasing interest in and support for use of FFV1 and=
 Matroska. However, there are concerns about the sustainability and credibi=
lity of existing specifications for the long-term use of these formats. The=
se existing specifications require broader review and formalization in orde=
r to encourage widespread adoption.</span></div><div id=3D"magicdomid7" cla=
ss=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-=
serif;font-size:13px;line-height:17px"><span class=3D"" style=3D"padding-to=
p:1px;padding-bottom:1px">=C2=A0</span></div><div id=3D"magicdomid8" class=
=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-se=
rif;font-size:13px;line-height:17px"><span class=3D"" style=3D"padding-top:=
1px;padding-bottom:1px">There is also a need for a lossless audio format to=
 complement the lossless video codec and container format. FLAC is a lossle=
ss audio codec that has seen widespread adoption in a number of different a=
pplications including</span><span class=3D"" style=3D"padding-top:1px;paddi=
ng-bottom:1px"><s>=C2=A0</s></span><span class=3D"" style=3D"padding-top:1p=
x;padding-bottom:1px">archival applications. While there are open source im=
plementations of the codec, no formal standards for either the codec itself=
 or its use in container formats currently exist. Review and formalization =
of the FLAC codec standard and its use in Matroska container formats is nee=
ded for wider adoption.</span></div><div id=3D"magicdomid9" class=3D"" styl=
e=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-s=
ize:13px;line-height:17px"><span class=3D"" style=3D"padding-top:1px;paddin=
g-bottom:1px">=C2=A0</span></div><div id=3D"magicdomid10" class=3D"" style=
=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-si=
ze:13px;line-height:17px"><span class=3D"" style=3D"padding-top:1px;padding=
-bottom:1px">Using existing work done by the development communities of Mat=
roska, FFV1, and FLAC, the Working Group will formalize specifications for =
these open and lossless formats. In order to provide authoritative, standar=
dized specifications for users and developers, the Working Group will seek =
consensus throughout the process of refining and formalizing these standard=
s. Existing specifications can be accessed here:</span></div><div id=3D"mag=
icdomid11" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-fami=
ly:Arial,sans-serif;font-size:13px;line-height:17px"><span class=3D"" style=
=3D"padding-top:1px;padding-bottom:1px">=C2=A0</span></div><div id=3D"magic=
domid12" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family=
:Arial,sans-serif;font-size:13px;line-height:17px"><span class=3D"" style=
=3D"padding-top:1px;padding-bottom:1px">Specifications:</span></div><div id=
=3D"magicdomid13" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);fo=
nt-family:Arial,sans-serif;font-size:13px;line-height:17px"><span class=3D"=
" style=3D"padding-top:1px;padding-bottom:1px">FFV1:=C2=A0</span><span clas=
s=3D"" style=3D"padding-top:1px;padding-bottom:1px"><a href=3D"https://medi=
aarea.net/temp/ffv1.html" style=3D"">https://mediaarea.net/temp/ffv1.html</=
a></span></div><div id=3D"magicdomid14" class=3D"" style=3D"padding-right:1=
px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height=
:17px"><span class=3D"" style=3D"padding-top:1px;padding-bottom:1px">Matros=
ka:=C2=A0</span><span class=3D"" style=3D"padding-top:1px;padding-bottom:1p=
x"><a href=3D"http://matroska.org/technical/specs/index.html" style=3D"">ht=
tp://matroska.org/technical/specs/index.html</a></span></div><div id=3D"mag=
icdomid15" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-fami=
ly:Arial,sans-serif;font-size:13px;line-height:17px"><span class=3D"" style=
=3D"padding-top:1px;padding-bottom:1px">EBML:=C2=A0</span><span class=3D"" =
style=3D"padding-top:1px;padding-bottom:1px"><a href=3D"http://matroska-org=
.github.io/libebml/specs.html" style=3D"">http://matroska-org.github.io/lib=
ebml/specs.html</a></span></div><div id=3D"magicdomid16" class=3D"" style=
=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-si=
ze:13px;line-height:17px"><span class=3D"" style=3D"padding-top:1px;padding=
-bottom:1px">FLAC:=C2=A0</span><span class=3D"" style=3D"padding-top:1px;pa=
dding-bottom:1px"><a href=3D"https://xiph.org/flac/format.html" style=3D"">=
https://xiph.org/flac/format.html</a></span></div><div id=3D"magicdomid17" =
class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sa=
ns-serif;font-size:13px;line-height:17px"><span class=3D"" style=3D"padding=
-top:1px;padding-bottom:1px">=C2=A0</span></div><div id=3D"magicdomid18" cl=
ass=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans=
-serif;font-size:13px;line-height:17px"><span class=3D"" style=3D"padding-t=
op:1px;padding-bottom:1px">Development Versions:</span></div><div id=3D"mag=
icdomid19" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-fami=
ly:Arial,sans-serif;font-size:13px;line-height:17px"><span class=3D"" style=
=3D"padding-top:1px;padding-bottom:1px">FFV1:=C2=A0</span><span class=3D"" =
style=3D"padding-top:1px;padding-bottom:1px"><a href=3D"https://github.com/=
ffmpeg/ffv1" style=3D"">https://github.com/ffmpeg/ffv1</a></span></div><div=
 id=3D"magicdomid20" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0)=
;font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span class=
=3D"" style=3D"padding-top:1px;padding-bottom:1px">Matroska:=C2=A0</span><s=
pan class=3D"" style=3D"padding-top:1px;padding-bottom:1px"><a href=3D"http=
s://github.com/Matroska-Org/foundation-source/blob/master/spectool/specdata=
.xml" style=3D"">https://github.com/Matroska-Org/foundation-source/blob/mas=
ter/spectool/specdata.xml</a></span></div><div id=3D"magicdomid21" class=3D=
"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif=
;font-size:13px;line-height:17px"><span class=3D"" style=3D"padding-top:1px=
;padding-bottom:1px">EBML:=C2=A0</span><span class=3D"" style=3D"padding-to=
p:1px;padding-bottom:1px"><a href=3D"https://github.com/Matroska-Org/ebml-s=
pecification" style=3D"">https://github.com/Matroska-Org/ebml-specification=
</a></span></div><div id=3D"magicdomid22" class=3D"" style=3D"padding-right=
:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-heig=
ht:17px"><span class=3D"" style=3D"padding-top:1px;padding-bottom:1px">=C2=
=A0</span></div><div id=3D"magicdomid23" class=3D"" style=3D"padding-right:=
1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-heigh=
t:17px"><span class=3D"" style=3D"padding-top:1px;padding-bottom:1px">The W=
orking Group will seek consensus and refinements for specifications for bot=
h FFV1 and Matroska in order to provide authoritative, standardized specifi=
cations for users and developers. Backward compatibility with existing vers=
ions 0-3 of the FFV1 and Matroska specifications will be an important goal,=
 while also reviewing and refining the current version 4 under active devel=
opment. Although not encouraged, non-backwards-compatible changes to the in=
put specifications will be acceptable if the Working Group determines that =
the modifications are required to meet the group&#39;s technical objectives=
, provided that the reasons for these changes are clearly documented.=C2=A0=
</span></div><div id=3D"magicdomid24" class=3D"" style=3D"padding-right:1px=
;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:1=
7px"><span class=3D"" style=3D"padding-top:1px;padding-bottom:1px">=C2=A0</=
span></div><div id=3D"magicdomid25" class=3D"" style=3D"padding-right:1px;c=
olor:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17p=
x"><span class=3D"" style=3D"padding-top:1px;padding-bottom:1px"><b>Deliver=
ables:</b></span></div><div id=3D"magicdomid26" class=3D"" style=3D"padding=
-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;lin=
e-height:17px"><ul class=3D"" style=3D"padding:0px;margin:0px 0px 0px 1.5em=
"><li style=3D"padding:0px;margin:0px"><span class=3D"" style=3D"padding-to=
p:1px;padding-bottom:1px">Informational specification for Matroska containe=
r format versions 1, 2 and 3 to IESG for publication</span></li></ul></div>=
<div id=3D"magicdomid27" class=3D"" style=3D"padding-right:1px;color:rgb(0,=
0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><ul clas=
s=3D"" style=3D"padding:0px;margin:0px 0px 0px 1.5em"><li style=3D"padding:=
0px;margin:0px"><span class=3D"" style=3D"padding-top:1px;padding-bottom:1p=
x">Standards Track specification for Matroska container format version 4 to=
 IESG for publication</span></li></ul></div><div id=3D"magicdomid28" class=
=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-se=
rif;font-size:13px;line-height:17px"><ul class=3D"" style=3D"padding:0px;ma=
rgin:0px 0px 0px 1.5em"><li style=3D"padding:0px;margin:0px"><span class=3D=
"" style=3D"padding-top:1px;padding-bottom:1px">Informational specification=
 for FFV1 video codec versions 0, 1 and 3 to IESG for publication</span></l=
i></ul></div><div id=3D"magicdomid29" class=3D"" style=3D"padding-right:1px=
;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:1=
7px"><ul class=3D"" style=3D"padding:0px;margin:0px 0px 0px 1.5em"><li styl=
e=3D"padding:0px;margin:0px"><span class=3D"" style=3D"padding-top:1px;padd=
ing-bottom:1px">Standards Track specification for FFV1 video codec version =
4 to IESG for publication</span></li></ul></div><div id=3D"magicdomid30" cl=
ass=3D"" style=3D"padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans=
-serif;font-size:13px;line-height:17px"><ul class=3D"" style=3D"padding:0px=
;margin:0px 0px 0px 1.5em"><li style=3D"padding:0px;margin:0px"><span class=
=3D"" style=3D"padding-top:1px;padding-bottom:1px">Standards Track specific=
ation for FLAC audio codec to IESG for publication</span></li></ul></div><d=
iv id=3D"magicdomid31" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,=
0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span clas=
s=3D"" style=3D"padding-top:1px;padding-bottom:1px">=C2=A0</span></div><div=
 id=3D"magicdomid32" class=3D"" style=3D"padding-right:1px;color:rgb(0,0,0)=
;font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span class=
=3D"" style=3D"padding-top:1px;padding-bottom:1px">=C2=A0</span></div><div>=
<span class=3D"" style=3D"padding-top:1px;padding-bottom:1px"><br></span></=
div></div>

--001a113ff69c29205e051f3d7ae9--


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To: Tessa Fallon <tessa.fallon@gmail.com>, dispatch@ietf.org
References: <CADK0Wux2cUnNyyQ9EfJPM55tQnPL2wR671Ze0apZ8OidtadTfg@mail.gmail.com>
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Archived-At: <http://mailarchive.ietf.org/arch/msg/dispatch/U3DGUMNVAF4YDJJJHK7XKV4pQR4>
Subject: Re: [dispatch] Proposed charter for CELLAR: Codec Encoding for LossLess Archiving and Realtime transmission
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I support creation of a working group with this set of goals, for the 
reasons stated in the proposed charter's first paragraph. I have no 
suggestions for improvements.

/a


On 9/8/15 09:49, Tessa Fallon wrote:
> After presenting on FFV1 and Matroska at IETF 94 this past summer, we 
> have incorporated feedback and input from IETF members to draft a new 
> charter for a proposed working group that includes FFV1, Matroska, and 
> FLAC.
>
> I look forward to discussing the proposed charter, which is included 
> below.
>
> Best wishes,
>
> Tessa Fallon
> /_________________/
> /
> /
> /Proposed Name/: CELLAR: Codec Encoding for LossLess Archiving and 
> Realtime transmission
> The preservation of audiovisual materials faces challenges from 
> technological obsolescence, analog media deterioration, and the use of 
> proprietary formats that lack formal open standards. While 
> obsolescence and material degradation are widely addressed, the 
> standardization of open, transparent, self-descriptive, lossless 
> formats remains an important mission to be undertaken by the open 
> source community.
> FFV1 is a lossless video codec and Matroska is an extensible media 
> container based on EBML (Extensible Binary Meta Language), a binary 
> XML format. There are open source implementations of both formats, and 
> an increasing interest in and support for use of FFV1 and Matroska. 
> However, there are concerns about the sustainability and credibility 
> of existing specifications for the long-term use of these formats. 
> These existing specifications require broader review and formalization 
> in order to encourage widespread adoption.
> There is also a need for a lossless audio format to complement the 
> lossless video codec and container format. FLAC is a lossless audio 
> codec that has seen widespread adoption in a number of different 
> applications includingarchival applications. While there are open 
> source implementations of the codec, no formal standards for either 
> the codec itself or its use in container formats currently exist. 
> Review and formalization of the FLAC codec standard and its use in 
> Matroska container formats is needed for wider adoption.
> Using existing work done by the development communities of Matroska, 
> FFV1, and FLAC, the Working Group will formalize specifications for 
> these open and lossless formats. In order to provide authoritative, 
> standardized specifications for users and developers, the Working 
> Group will seek consensus throughout the process of refining and 
> formalizing these standards. Existing specifications can be accessed here:
> Specifications:
> FFV1: https://mediaarea.net/temp/ffv1.html
> Matroska: http://matroska.org/technical/specs/index.html
> EBML: http://matroska-org.github.io/libebml/specs.html
> FLAC: https://xiph.org/flac/format.html
> Development Versions:
> FFV1: https://github.com/ffmpeg/ffv1
> Matroska: 
> https://github.com/Matroska-Org/foundation-source/blob/master/spectool/specdata.xml
> EBML: https://github.com/Matroska-Org/ebml-specification
> The Working Group will seek consensus and refinements for 
> specifications for both FFV1 and Matroska in order to provide 
> authoritative, standardized specifications for users and developers. 
> Backward compatibility with existing versions 0-3 of the FFV1 and 
> Matroska specifications will be an important goal, while also 
> reviewing and refining the current version 4 under active development. 
> Although not encouraged, non-backwards-compatible changes to the input 
> specifications will be acceptable if the Working Group determines that 
> the modifications are required to meet the group's technical 
> objectives, provided that the reasons for these changes are clearly 
> documented.
> *Deliverables:*
>
>   * Informational specification for Matroska container format versions
>     1, 2 and 3 to IESG for publication
>
>   * Standards Track specification for Matroska container format
>     version 4 to IESG for publication
>
>   * Informational specification for FFV1 video codec versions 0, 1 and
>     3 to IESG for publication
>
>   * Standards Track specification for FFV1 video codec version 4 to
>     IESG for publication
>
>   * Standards Track specification for FLAC audio codec to IESG for
>     publication
>
>
>
>
> _______________________________________________
> dispatch mailing list
> dispatch@ietf.org
> https://www.ietf.org/mailman/listinfo/dispatch


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    <div class="moz-cite-prefix">I support creation of a working group
      with this set of goals, for the reasons stated in the proposed
      charter's first paragraph. I have no suggestions for improvements.<br>
      <br>
      /a<br>
      <br>
      <br>
      On 9/8/15 09:49, Tessa Fallon wrote:<br>
    </div>
    <blockquote
cite="mid:CADK0Wux2cUnNyyQ9EfJPM55tQnPL2wR671Ze0apZ8OidtadTfg@mail.gmail.com"
      type="cite">
      <div dir="ltr">
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">After
          presenting on FFV1 and Matroska at IETF 94 this past summer,
          we have incorporated feedback and input from IETF members to
          draft a new charter for a proposed working group that includes
          FFV1, Matroska, and FLAC.</div>
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><br>
        </div>
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">I
          look forward to discussing the proposed charter, which is
          included below.</div>
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><br>
        </div>
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">Best
          wishes,</div>
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><br>
        </div>
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">Tessa
          Fallon</div>
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"><i>_________________</i></span></div>
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"><i><br>
            </i></span></div>
        <div id="magicdomid2" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"><i>Proposed
              Name</i></span><span class=""
            style="padding-top:1px;padding-bottom:1px">: CELLAR: Codec
            Encoding for LossLess Archiving and Realtime transmission</span></div>
        <div id="magicdomid3" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div id="magicdomid4" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">The
            preservation of audiovisual materials faces challenges from
            technological obsolescence, analog media deterioration, and
            the use of proprietary formats that lack formal open
            standards. While obsolescence and material degradation are
            widely addressed, the standardization of open, transparent,
            self-descriptive, lossless formats remains an important
            mission to be undertaken by the open source community.</span></div>
        <div id="magicdomid5" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div id="magicdomid6" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">FFV1 is
            a lossless video codec and Matroska is an extensible media
            container based on EBML (Extensible Binary Meta Language), a
            binary XML format. There are open source implementations of
            both formats, and an increasing interest in and support for
            use of FFV1 and Matroska. However, there are concerns about
            the sustainability and credibility of existing
            specifications for the long-term use of these formats. These
            existing specifications require broader review and
            formalization in order to encourage widespread adoption.</span></div>
        <div id="magicdomid7" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div id="magicdomid8" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">There is
            also a need for a lossless audio format to complement the
            lossless video codec and container format. FLAC is a
            lossless audio codec that has seen widespread adoption in a
            number of different applications including</span><span
            class="" style="padding-top:1px;padding-bottom:1px"><s> </s></span><span
            class="" style="padding-top:1px;padding-bottom:1px">archival
            applications. While there are open source implementations of
            the codec, no formal standards for either the codec itself
            or its use in container formats currently exist. Review and
            formalization of the FLAC codec standard and its use in
            Matroska container formats is needed for wider adoption.</span></div>
        <div id="magicdomid9" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div id="magicdomid10" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">Using
            existing work done by the development communities of
            Matroska, FFV1, and FLAC, the Working Group will formalize
            specifications for these open and lossless formats. In order
            to provide authoritative, standardized specifications for
            users and developers, the Working Group will seek consensus
            throughout the process of refining and formalizing these
            standards. Existing specifications can be accessed here:</span></div>
        <div id="magicdomid11" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div id="magicdomid12" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">Specifications:</span></div>
        <div id="magicdomid13" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">FFV1: </span><span
            class="" style="padding-top:1px;padding-bottom:1px"><a
              moz-do-not-send="true"
              href="https://mediaarea.net/temp/ffv1.html" style=""><a class="moz-txt-link-freetext" href="https://mediaarea.net/temp/ffv1.html">https://mediaarea.net/temp/ffv1.html</a></a></span></div>
        <div id="magicdomid14" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">Matroska: </span><span
            class="" style="padding-top:1px;padding-bottom:1px"><a
              moz-do-not-send="true"
              href="http://matroska.org/technical/specs/index.html"
              style=""><a class="moz-txt-link-freetext" href="http://matroska.org/technical/specs/index.html">http://matroska.org/technical/specs/index.html</a></a></span></div>
        <div id="magicdomid15" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">EBML: </span><span
            class="" style="padding-top:1px;padding-bottom:1px"><a
              moz-do-not-send="true"
              href="http://matroska-org.github.io/libebml/specs.html"
              style=""><a class="moz-txt-link-freetext" href="http://matroska-org.github.io/libebml/specs.html">http://matroska-org.github.io/libebml/specs.html</a></a></span></div>
        <div id="magicdomid16" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">FLAC: </span><span
            class="" style="padding-top:1px;padding-bottom:1px"><a
              moz-do-not-send="true"
              href="https://xiph.org/flac/format.html" style=""><a class="moz-txt-link-freetext" href="https://xiph.org/flac/format.html">https://xiph.org/flac/format.html</a></a></span></div>
        <div id="magicdomid17" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div id="magicdomid18" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">Development
            Versions:</span></div>
        <div id="magicdomid19" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">FFV1: </span><span
            class="" style="padding-top:1px;padding-bottom:1px"><a
              moz-do-not-send="true"
              href="https://github.com/ffmpeg/ffv1" style=""><a class="moz-txt-link-freetext" href="https://github.com/ffmpeg/ffv1">https://github.com/ffmpeg/ffv1</a></a></span></div>
        <div id="magicdomid20" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">Matroska: </span><span
            class="" style="padding-top:1px;padding-bottom:1px"><a
              moz-do-not-send="true"
href="https://github.com/Matroska-Org/foundation-source/blob/master/spectool/specdata.xml"
              style=""><a class="moz-txt-link-freetext" href="https://github.com/Matroska-Org/foundation-source/blob/master/spectool/specdata.xml">https://github.com/Matroska-Org/foundation-source/blob/master/spectool/specdata.xml</a></a></span></div>
        <div id="magicdomid21" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">EBML: </span><span
            class="" style="padding-top:1px;padding-bottom:1px"><a
              moz-do-not-send="true"
              href="https://github.com/Matroska-Org/ebml-specification"
              style=""><a class="moz-txt-link-freetext" href="https://github.com/Matroska-Org/ebml-specification">https://github.com/Matroska-Org/ebml-specification</a></a></span></div>
        <div id="magicdomid22" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div id="magicdomid23" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px">The
            Working Group will seek consensus and refinements for
            specifications for both FFV1 and Matroska in order to
            provide authoritative, standardized specifications for users
            and developers. Backward compatibility with existing
            versions 0-3 of the FFV1 and Matroska specifications will be
            an important goal, while also reviewing and refining the
            current version 4 under active development. Although not
            encouraged, non-backwards-compatible changes to the input
            specifications will be acceptable if the Working Group
            determines that the modifications are required to meet the
            group's technical objectives, provided that the reasons for
            these changes are clearly documented. </span></div>
        <div id="magicdomid24" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div id="magicdomid25" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"><b>Deliverables:</b></span></div>
        <div id="magicdomid26" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">
          <ul class="" style="padding:0px;margin:0px 0px 0px 1.5em">
            <li style="padding:0px;margin:0px"><span class=""
                style="padding-top:1px;padding-bottom:1px">Informational
                specification for Matroska container format versions 1,
                2 and 3 to IESG for publication</span></li>
          </ul>
        </div>
        <div id="magicdomid27" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">
          <ul class="" style="padding:0px;margin:0px 0px 0px 1.5em">
            <li style="padding:0px;margin:0px"><span class=""
                style="padding-top:1px;padding-bottom:1px">Standards
                Track specification for Matroska container format
                version 4 to IESG for publication</span></li>
          </ul>
        </div>
        <div id="magicdomid28" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">
          <ul class="" style="padding:0px;margin:0px 0px 0px 1.5em">
            <li style="padding:0px;margin:0px"><span class=""
                style="padding-top:1px;padding-bottom:1px">Informational
                specification for FFV1 video codec versions 0, 1 and 3
                to IESG for publication</span></li>
          </ul>
        </div>
        <div id="magicdomid29" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">
          <ul class="" style="padding:0px;margin:0px 0px 0px 1.5em">
            <li style="padding:0px;margin:0px"><span class=""
                style="padding-top:1px;padding-bottom:1px">Standards
                Track specification for FFV1 video codec version 4 to
                IESG for publication</span></li>
          </ul>
        </div>
        <div id="magicdomid30" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px">
          <ul class="" style="padding:0px;margin:0px 0px 0px 1.5em">
            <li style="padding:0px;margin:0px"><span class=""
                style="padding-top:1px;padding-bottom:1px">Standards
                Track specification for FLAC audio codec to IESG for
                publication</span></li>
          </ul>
        </div>
        <div id="magicdomid31" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div id="magicdomid32" class=""
style="padding-right:1px;color:rgb(0,0,0);font-family:Arial,sans-serif;font-size:13px;line-height:17px"><span
            class="" style="padding-top:1px;padding-bottom:1px"> </span></div>
        <div><span class="" style="padding-top:1px;padding-bottom:1px"><br>
          </span></div>
      </div>
      <br>
      <fieldset class="mimeAttachmentHeader"></fieldset>
      <br>
      <pre wrap="">_______________________________________________
dispatch mailing list
<a class="moz-txt-link-abbreviated" href="mailto:dispatch@ietf.org">dispatch@ietf.org</a>
<a class="moz-txt-link-freetext" href="https://www.ietf.org/mailman/listinfo/dispatch">https://www.ietf.org/mailman/listinfo/dispatch</a>
</pre>
    </blockquote>
    <br>
  </body>
</html>

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Adam Roach wrote:
> I support creation of a working group with this set of goals, for the
> reasons stated in the proposed charter's first paragraph. I have no
> suggestions for improvements.

+1


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On Tue, Sep 08, 2015 at 09:56:22AM -0500, Adam Roach wrote:
> I support creation of a working group with this set of goals, for
> the reasons stated in the proposed charter's first paragraph. I have
> no suggestions for improvements.

+1

[...]

--=20
Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB

It is what and why we do it that matters, not just one of them.

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Subject: Re: [dispatch] [Ice] New version of the proposed charter
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Comments inline:

On 2 Sep 2015, at 7:21, Marc Petit-Huguenin wrote:

> Please find below a new version of the proposed charter, trying to =

> take in account all the comments so far.
>
> The discussions are taking place in the ice mailing-list, please do =

> not cross-post.
>
> Thanks.
>
> - =

> -----------------------------------------------------------------------=
----------
>
> Charter for Working Group
>
> Interactive Connectivity Establishment was published as RFC 5245 in =

> April 2010. Until recently the protocol had seen rather limited =

> deployment. ICE was slow to achieve widespread adoption, as other =

> mechanisms were already being used by the VoIP industry. This =

> situation has changed drastically as ICE is mandatory to implement in =

> WebRTC, a set of technologies developed at the IETF and W3C to =

> standardize Real Time Communication on the Web.
>
> Interactive Connectivity Establishment (ICE) is at the same time a NAT =

> traversal technique, a multihomed address selection technique, and a =

> dual stack address selection technique that works by including a =

> multiplicity of IP addresses and ports in both the request and =

> response messages of a connectivity establishment transaction. The IP =

> addresses and ports provided by each side are paired and tested by =

> peer-to-peer connectivity checks until one of these pair is selected =

> to transport data. ICE follows the end to end principle where the =

> clients themselves discovers, test and choose the network path to use. =

> It makes no assumptions regarding network topology on the local or =

> remote side.
>
> ICE was originally defined for the Offer-Answer (RFC 3264) protocol =

> used by SIP (RFC 3261). Later XMPP (XEP-0176), RTSP =

> (draft-ietf-mmusic-rtsp-nat), RTCWeb (draft-ietf-rtcweb-jsep) and =

> other realtime media establishment protocol have used the protocol. =

> ICE is also used by non-realtime media protocols, like HIP (RFC 5770) =

> and RELOAD (RFC 6940).
>
> The goal of the ICE Working Group is to consolidate the various =

> initiatives to update ICE to make it more suitable for the WebRTC =

> environment but also to all the current usages of ICE.

I'd like to see more specifics here. There are three milestones--the =

charter text should describe the work items supported by those =

milestones and expected output. If those milestones are assumed to be =

based on existing drafts, please name them.

We also need to be clear on how open or closed ended this is. Is the =

goal to finish specific work and close?
Or do you expect the wg to add new work items in the future as new ICE =

requirements become apparent? (Note that a "standing" maintenance =

working group may get more charter scrutiny than one intended to finish =

and close.)


> ICE is an application controlled protocol that leverages a set of =

> network defined protocols. The STUN (RFC 5389), TURN (RFC 5766) and =

> related protocol work done in the TRAM working group must be closely =

> synchronised with the work in this working group. Synching with other =

> network related working groups to make sure existing mechanisms like =

> QoS, congestion control and other networking mechanisms still work =

> would be essential if we want to improve how ICE works (MIF, TAPS, =

> TSWG, HOMENET, etc...). From the application side, the users of ICE, =

> there is a need to make sure what is specified is actually usable. =

> Getting input from the application working groups will be essential =

> (RTCWEB, HIP, MMUSIC, P2PSIP).
>
> Milestones
>
>  Jun 2016 Submit Dual-stack Fairness with ICE as Proposed Standard
>  Apr 2016 Submit a revision of ICE (RFC 5245) as Proposed Standard
>  Jan 2016 Submit Trickle ICE as Proposed Standard
>
> - --
> Marc Petit-Huguenin
> Email: marc@petit-huguenin.org
> Blog: http://blog.marc.petit-huguenin.org
> Profile: http://www.linkedin.com/in/petithug
>
> _______________________________________________
> Ice mailing list
> Ice@ietf.org
> https://www.ietf.org/mailman/listinfo/ice


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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Hi Paul,

I don=E2=80=99t think the goal is to prevent anything necessarily. I =
think the point is to express in the charter what the group plans to do, =
what requirements flow from that, and the circumstances under which a =
re-charter would be necessary. I agree with you that what we can limit =
here is what the WG will work on, not what people will do with that =
output.

The point of discussing the relationship between a GeoJSON object and a =
LO was to point out that a GeoJSON object itself does not specify the =
location of a target, but rather just a location. Perhaps that point =
could be made more clearly without talking about location objects at =
all, if that is confusing?

Alissa


> On Sep 3, 2015, at 8:49 AM, Paul Kyzivat <pkyzivat@alum.mit.edu> =
wrote:
>=20
> I have been following this discussion, but haven't been able to make =
sense of it. :-(
>=20
> IIUC, the question is how to restrict GeoJSON so that it can't be used =
to represent Location Objects (loosely as defined in RF6280) because it =
doesn't have a way to include Privacy Rules. ISTM that this is an =
*impossible* goal.
>=20
> If you pass a representation of a geographic location where a target =
might be, then it may be possible for that location to be associated =
with a target contextually. This may be true without the knowledge of =
the sending application. (And possibly even without the knowledge of the =
receiving application.) The relationship may be inferred via complex =
data mining.
>=20
> For that matter, even the statement of the goal is problematic. In =
6280 LO is defined as "location information together with Privacy =
Rules". I guess GeoJSON doesn't aspire to represent privacy rules, but I =
don't see how doing so would be a problem.
>=20
> Perhaps the goal should be to forbid a GeoJSON object from =
*containing* a representation of a *target* (as defined in 6280). This =
would not prevent a target from being associated with it contextually, =
but at least the users will not need to consider what might be *within* =
the GeoJSON object when analyzing whether there are privacy concerns.
>=20
> 	Thanks,
> 	Paul
>=20
> On 9/3/15 10:57 AM, Alissa Cooper wrote:
>> Suggestion below.
>>=20
>>> On Sep 3, 2015, at 6:19 AM, Stephen Farrell =
<stephen.farrell@cs.tcd.ie> wrote:
>>>=20
>>>=20
>>> scroll on down...
>>>=20
>>> On 03/09/15 14:14, Alissa Cooper wrote:
>>>>=20
>>>>> On Sep 3, 2015, at 5:28 AM, Stephen Farrell
>>>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>>>=20
>>>>>=20
>>>>> Hiya,
>>>>>=20
>>>>> On 03/09/15 13:23, Alissa Cooper wrote:
>>>>>> Hi Stephen,
>>>>>>=20
>>>>>>> On Sep 3, 2015, at 4:15 AM, Stephen Farrell
>>>>>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>>>>>=20
>>>>>>> Stephen Farrell has entered the following ballot position for
>>>>>>> charter-ietf-geojson-00-01: Block
>>>>>>>=20
>>>>>>> When responding, please keep the subject line intact and reply
>>>>>>> to all email addresses included in the To and CC lines. (Feel
>>>>>>> free to cut this introductory paragraph, however.)
>>>>>>>=20
>>>>>>>=20
>>>>>>>=20
>>>>>>> The document, along with other ballot positions, can be found
>>>>>>> here: https://datatracker.ietf.org/doc/charter-ietf-geojson/
>>>>>>>=20
>>>>>>>=20
>>>>>>>=20
>>>>>>> =
----------------------------------------------------------------------
>>>>>>>=20
>>>>>>>=20
>>>>>=20
>>>>>>>=20
>>> BLOCK:
>>>>>>> =
----------------------------------------------------------------------
>>>>>>>=20
>>>>>>>=20
>>>>>>>=20
>>>>>>>=20
>>>>>=20
>>>>>>>=20
>>> This seems like a fine thing to do, but I have one
>>>>>>> concern I'd like to chat about before we go ahead.
>>>>>>>=20
>>>>>>> I could buy the "no privacy issues here" argument except for
>>>>>>> the last sentence which says: "As the WG considers
>>>>>>> extensibility it will be careful not to preclude extensions
>>>>>>> that would allow GeoJSON objects to become location objects
>>>>>>> unless the group determines such extensibility would be
>>>>>>> harmful." Aside from being hard to parse, that seems to mean
>>>>>>> that some extensions could mean this format does become a
>>>>>>> RFC6280 Location object, which would then bring in the privacy
>>>>>>> and security issues, previously argued to be out of scope.
>>>>>>=20
>>>>>> Maybe this is a verb tense problem, but I think the points of
>>>>>> the entire paragraph in question are:
>>>>>>=20
>>>>>> 1) the format the group intends to create is for representation
>>>>>> of things that are not location objects 2) even so, depending on
>>>>>> how the format is specified, it may be possible for them to get
>>>>>> used in ways in which they become location objects, in which case
>>>>>> the privacy and security considerations kick in 3) in defining
>>>>>> how to make the format extensible, the group does not want to
>>>>>> preclude (2) in the future, but 4) the group will not be defining
>>>>>> specific extensions to achieve (2).
>>>>>>=20
>>>>>> Here is a re-phrase that tries to capture this better:
>>>>>>=20
>>>>>> The WG will be careful to craft its extensibility mechanism such
>>>>>> that extensions that would allow GeoJSON objects to become
>>>>>> location objects are not precluded, but will not be defining such
>>>>>> extensions itself. Should such an extension be needed,
>>>>>> re-chartering will be required.
>>>>>>=20
>>>>>> Is that better?
>>>>>=20
>>>>> Yes. Definitely clearer.
>>>>>=20
>>>>> However, the "not precluded" is a bit troubling still.
>>>>=20
>>>> I think the thing is that you don=E2=80=99t want to specify this =
format such
>>>> that it could never describe the location of a person or a device,
>>>> because that would be an a priori limiting constraint on its =
utility.
>>>> So the point is to leave the door open via the extensibility
>>>> mechanism, but not design specific extensions to do this (unless
>>>> there=E2=80=99s a re-charter).
>>>>=20
>>>>>=20
>>>>> Let me try get to it this way - in the following timeline who/when
>>>>> would address the security/privacy issues and how'd we be
>>>>> confident that'd really happen?
>>>>>=20
>>>>> t1: This WG does it's planned stuff. t2: The foo-protocol uses
>>>>> geojson in a PDU (and the bar protocol etc.) The foo-wg doesn't
>>>>> consider security/privacy as geojson doesn't create location
>>>>> objects
>>>>=20
>>>> I think consideration for privacy/security could happen at t2
>>>> depending on how the foo-protocol uses the geojson object. So in =
this
>>>> case we would rely on the remit of the foo-wg (this is the "When a
>>>> GeoJSON object is used in a context where it identifies the =
location
>>>> of a Target =E2=80=A6=E2=80=9D sentence).
>>>=20
>>> But at t2, the foo-wg doesn't know that a geojson object can e.g.
>>> include my photo or FB name or whatever so they can't take that
>>> into account.
>>>=20
>>>>=20
>>>>> t3: This WG defines how to annotate a location with an identity
>>>>> thus creating location objects
>>>>=20
>>>> Then certainly at t3 the geojson WG would address privacy/security.
>>>> And this would be after re-charter.
>>>=20
>>> Even if that re-charter says to consider the foo-protocol and
>>> the bar-protocol, it'd likely be too late to handle things well.
>>>=20
>>> On balance I think I'd argue that this charter would be better to
>>> just say "no security/privacy stuff needed" (as it currentlyu does)
>>> but to not get into extensibility and how that might affect privacy
>>> at all.
>>=20
>> How about this?
>>=20
>> OLD
>> As the WG considers extensibility it will be careful not to
>> preclude extensions that would allow GeoJSON objects to become =
location objects
>> unless the group determines such extensibility would be harmful.
>>=20
>> NEW
>> Should extensions that would allow GeoJSON objects to become location =
objects be needed, re-chartering will be required.
>>=20
>> Alissa
>>=20
>>>=20
>>> Cheers,
>>> S.
>>>=20
>>>=20
>>>>=20
>>>> Alissa
>>>>=20
>>>>>=20
>>>>> Ta, S.
>>>>>=20
>>>>>=20
>>>>>=20
>>>>>>=20
>>>>>> Alissa
>>>>>>=20
>>>>>>> I think that's a contradiction. As it happens, I also think
>>>>>>> that, despite folks best efforts, RFC6280 isn't an architecture
>>>>>>> that worked out that well, so I'd not suggest that this wG try
>>>>>>> emulate that with square brackets. Instead, I'd suggest that
>>>>>>> this WG be chartered to never take on work with does have
>>>>>>> security or privacy consequences (without a re-charter).
>>>>>>>=20
>>>>>>> That'd maybe mean a change in the last sentence such as:
>>>>>>>=20
>>>>>>> OLD:
>>>>>>>=20
>>>>>>> As the WG considers extensibility it will be careful not to
>>>>>>> preclude extensions that would allow GeoJSON objects to become
>>>>>>> location objects unless the group determines such
>>>>>>> extensibility would be harmful.
>>>>>>>=20
>>>>>>> NEW:
>>>>>>>=20
>>>>>>> In order to continue to validly avoid having to deal with the
>>>>>>> security and privacy issues that would arise, this WG will not
>>>>>>> define any extensions that would have the effect of making a
>>>>>>> geojson object an RFC6280 location object or location
>>>>>>> information as defined by RFC3693.  Should such an extension be
>>>>>>> needed, re-chartering will be required.
>>>>>>>=20
>>>>>>> My propsed NEW text is very clunky so probably needs
>>>>>>> improving.
>>>>>>>=20
>>>>>>>=20
>>>>>>>=20
>>>>>>>=20
>>>>>>> _______________________________________________ Geopriv
>>>>>>> mailing list Geopriv@ietf.org
>>>>>>> https://www.ietf.org/mailman/listinfo/geopriv
>>>>>>=20
>>>>=20
>>=20
>> _______________________________________________
>> dispatch mailing list
>> dispatch@ietf.org
>> https://www.ietf.org/mailman/listinfo/dispatch
>>=20
>=20
> _______________________________________________
> dispatch mailing list
> dispatch@ietf.org
> https://www.ietf.org/mailman/listinfo/dispatch


From nobody Thu Sep 10 08:09:46 2015
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To: Alissa Cooper <alissa@cooperw.in>
References: <20150903111519.12341.48799.idtracker@ietfa.amsl.com> <CAFC1CD0-43EE-4F40-A755-C51D610FBD9A@cooperw.in> <55E83CFF.1040508@cs.tcd.ie> <99B958BA-B141-43D0-A7FB-26ABFDFD274A@cooperw.in> <55E848E3.10403@cs.tcd.ie> <88EE4F71-A95D-478B-B38C-B76D12D8873F@cooperw.in> <55E86C05.7020103@alum.mit.edu> <B1CD4787-9E6A-4132-97BC-9C3531C47FFF@cooperw.in>
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Alissa,

On 9/9/15 8:53 PM, Alissa Cooper wrote:
> Hi Paul,
>
> I don’t think the goal is to prevent anything necessarily. I think the point is to express in the charter what the group plans to do, what requirements flow from that, and the circumstances under which a re-charter would be necessary. I agree with you that what we can limit here is what the WG will work on, not what people will do with that output.

OK

> The point of discussing the relationship between a GeoJSON object and a LO was to point out that a GeoJSON object itself does not specify the location of a target, but rather just a location. Perhaps that point could be made more clearly without talking about location objects at all, if that is confusing?

Yes. I found the ref to LO to add confusion about what the point was.
I think just saying that a GeoJSON object is not intended to contain 
identification of a target would do the trick.

	Thanks,
	Paul

> Alissa
>
>
>> On Sep 3, 2015, at 8:49 AM, Paul Kyzivat <pkyzivat@alum.mit.edu> wrote:
>>
>> I have been following this discussion, but haven't been able to make sense of it. :-(
>>
>> IIUC, the question is how to restrict GeoJSON so that it can't be used to represent Location Objects (loosely as defined in RF6280) because it doesn't have a way to include Privacy Rules. ISTM that this is an *impossible* goal.
>>
>> If you pass a representation of a geographic location where a target might be, then it may be possible for that location to be associated with a target contextually. This may be true without the knowledge of the sending application. (And possibly even without the knowledge of the receiving application.) The relationship may be inferred via complex data mining.
>>
>> For that matter, even the statement of the goal is problematic. In 6280 LO is defined as "location information together with Privacy Rules". I guess GeoJSON doesn't aspire to represent privacy rules, but I don't see how doing so would be a problem.
>>
>> Perhaps the goal should be to forbid a GeoJSON object from *containing* a representation of a *target* (as defined in 6280). This would not prevent a target from being associated with it contextually, but at least the users will not need to consider what might be *within* the GeoJSON object when analyzing whether there are privacy concerns.
>>
>> 	Thanks,
>> 	Paul
>>
>> On 9/3/15 10:57 AM, Alissa Cooper wrote:
>>> Suggestion below.
>>>
>>>> On Sep 3, 2015, at 6:19 AM, Stephen Farrell <stephen.farrell@cs.tcd.ie> wrote:
>>>>
>>>>
>>>> scroll on down...
>>>>
>>>> On 03/09/15 14:14, Alissa Cooper wrote:
>>>>>
>>>>>> On Sep 3, 2015, at 5:28 AM, Stephen Farrell
>>>>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>>>>
>>>>>>
>>>>>> Hiya,
>>>>>>
>>>>>> On 03/09/15 13:23, Alissa Cooper wrote:
>>>>>>> Hi Stephen,
>>>>>>>
>>>>>>>> On Sep 3, 2015, at 4:15 AM, Stephen Farrell
>>>>>>>> <stephen.farrell@cs.tcd.ie> wrote:
>>>>>>>>
>>>>>>>> Stephen Farrell has entered the following ballot position for
>>>>>>>> charter-ietf-geojson-00-01: Block
>>>>>>>>
>>>>>>>> When responding, please keep the subject line intact and reply
>>>>>>>> to all email addresses included in the To and CC lines. (Feel
>>>>>>>> free to cut this introductory paragraph, however.)
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> The document, along with other ballot positions, can be found
>>>>>>>> here: https://datatracker.ietf.org/doc/charter-ietf-geojson/
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> ----------------------------------------------------------------------
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>>>>
>>>> BLOCK:
>>>>>>>> ----------------------------------------------------------------------
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>
>>>>>>>>
>>>> This seems like a fine thing to do, but I have one
>>>>>>>> concern I'd like to chat about before we go ahead.
>>>>>>>>
>>>>>>>> I could buy the "no privacy issues here" argument except for
>>>>>>>> the last sentence which says: "As the WG considers
>>>>>>>> extensibility it will be careful not to preclude extensions
>>>>>>>> that would allow GeoJSON objects to become location objects
>>>>>>>> unless the group determines such extensibility would be
>>>>>>>> harmful." Aside from being hard to parse, that seems to mean
>>>>>>>> that some extensions could mean this format does become a
>>>>>>>> RFC6280 Location object, which would then bring in the privacy
>>>>>>>> and security issues, previously argued to be out of scope.
>>>>>>>
>>>>>>> Maybe this is a verb tense problem, but I think the points of
>>>>>>> the entire paragraph in question are:
>>>>>>>
>>>>>>> 1) the format the group intends to create is for representation
>>>>>>> of things that are not location objects 2) even so, depending on
>>>>>>> how the format is specified, it may be possible for them to get
>>>>>>> used in ways in which they become location objects, in which case
>>>>>>> the privacy and security considerations kick in 3) in defining
>>>>>>> how to make the format extensible, the group does not want to
>>>>>>> preclude (2) in the future, but 4) the group will not be defining
>>>>>>> specific extensions to achieve (2).
>>>>>>>
>>>>>>> Here is a re-phrase that tries to capture this better:
>>>>>>>
>>>>>>> The WG will be careful to craft its extensibility mechanism such
>>>>>>> that extensions that would allow GeoJSON objects to become
>>>>>>> location objects are not precluded, but will not be defining such
>>>>>>> extensions itself. Should such an extension be needed,
>>>>>>> re-chartering will be required.
>>>>>>>
>>>>>>> Is that better?
>>>>>>
>>>>>> Yes. Definitely clearer.
>>>>>>
>>>>>> However, the "not precluded" is a bit troubling still.
>>>>>
>>>>> I think the thing is that you don’t want to specify this format such
>>>>> that it could never describe the location of a person or a device,
>>>>> because that would be an a priori limiting constraint on its utility.
>>>>> So the point is to leave the door open via the extensibility
>>>>> mechanism, but not design specific extensions to do this (unless
>>>>> there’s a re-charter).
>>>>>
>>>>>>
>>>>>> Let me try get to it this way - in the following timeline who/when
>>>>>> would address the security/privacy issues and how'd we be
>>>>>> confident that'd really happen?
>>>>>>
>>>>>> t1: This WG does it's planned stuff. t2: The foo-protocol uses
>>>>>> geojson in a PDU (and the bar protocol etc.) The foo-wg doesn't
>>>>>> consider security/privacy as geojson doesn't create location
>>>>>> objects
>>>>>
>>>>> I think consideration for privacy/security could happen at t2
>>>>> depending on how the foo-protocol uses the geojson object. So in this
>>>>> case we would rely on the remit of the foo-wg (this is the "When a
>>>>> GeoJSON object is used in a context where it identifies the location
>>>>> of a Target …” sentence).
>>>>
>>>> But at t2, the foo-wg doesn't know that a geojson object can e.g.
>>>> include my photo or FB name or whatever so they can't take that
>>>> into account.
>>>>
>>>>>
>>>>>> t3: This WG defines how to annotate a location with an identity
>>>>>> thus creating location objects
>>>>>
>>>>> Then certainly at t3 the geojson WG would address privacy/security.
>>>>> And this would be after re-charter.
>>>>
>>>> Even if that re-charter says to consider the foo-protocol and
>>>> the bar-protocol, it'd likely be too late to handle things well.
>>>>
>>>> On balance I think I'd argue that this charter would be better to
>>>> just say "no security/privacy stuff needed" (as it currentlyu does)
>>>> but to not get into extensibility and how that might affect privacy
>>>> at all.
>>>
>>> How about this?
>>>
>>> OLD
>>> As the WG considers extensibility it will be careful not to
>>> preclude extensions that would allow GeoJSON objects to become location objects
>>> unless the group determines such extensibility would be harmful.
>>>
>>> NEW
>>> Should extensions that would allow GeoJSON objects to become location objects be needed, re-chartering will be required.
>>>
>>> Alissa
>>>
>>>>
>>>> Cheers,
>>>> S.
>>>>
>>>>
>>>>>
>>>>> Alissa
>>>>>
>>>>>>
>>>>>> Ta, S.
>>>>>>
>>>>>>
>>>>>>
>>>>>>>
>>>>>>> Alissa
>>>>>>>
>>>>>>>> I think that's a contradiction. As it happens, I also think
>>>>>>>> that, despite folks best efforts, RFC6280 isn't an architecture
>>>>>>>> that worked out that well, so I'd not suggest that this wG try
>>>>>>>> emulate that with square brackets. Instead, I'd suggest that
>>>>>>>> this WG be chartered to never take on work with does have
>>>>>>>> security or privacy consequences (without a re-charter).
>>>>>>>>
>>>>>>>> That'd maybe mean a change in the last sentence such as:
>>>>>>>>
>>>>>>>> OLD:
>>>>>>>>
>>>>>>>> As the WG considers extensibility it will be careful not to
>>>>>>>> preclude extensions that would allow GeoJSON objects to become
>>>>>>>> location objects unless the group determines such
>>>>>>>> extensibility would be harmful.
>>>>>>>>
>>>>>>>> NEW:
>>>>>>>>
>>>>>>>> In order to continue to validly avoid having to deal with the
>>>>>>>> security and privacy issues that would arise, this WG will not
>>>>>>>> define any extensions that would have the effect of making a
>>>>>>>> geojson object an RFC6280 location object or location
>>>>>>>> information as defined by RFC3693.  Should such an extension be
>>>>>>>> needed, re-chartering will be required.
>>>>>>>>
>>>>>>>> My propsed NEW text is very clunky so probably needs
>>>>>>>> improving.
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>>
>>>>>>>> _______________________________________________ Geopriv
>>>>>>>> mailing list Geopriv@ietf.org
>>>>>>>> https://www.ietf.org/mailman/listinfo/geopriv
>>>>>>>
>>>>>
>>>
>>> _______________________________________________
>>> dispatch mailing list
>>> dispatch@ietf.org
>>> https://www.ietf.org/mailman/listinfo/dispatch
>>>
>>
>> _______________________________________________
>> dispatch mailing list
>> dispatch@ietf.org
>> https://www.ietf.org/mailman/listinfo/dispatch
>
>


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Subject: [dispatch] Updated geojson charter text
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--Apple-Mail=_DE9233BC-80DC-4B45-9712-DFB1E5897D74
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I=E2=80=99ve made an update to the geojson charter text in response to =
the list discussion with Paul, Carl, and Stephen. I have removed the =
text about location objects since that seemed to confuse people and was =
superfluous given the point being made about target identity. I also =
changed the last sentence per my exchange with Stephen, but inserted a =
note about the extensibility of the format to try to capture Robert=E2=80=99=
s earlier comments. The changes to the paragraph are below and the full =
charter is at <http://datatracker.ietf.org/doc/charter-ietf-geojson/ =
<http://datatracker.ietf.org/doc/charter-ietf-geojson/>>. Please shout =
if you think this charter is not ready for external review.

Thanks,
Alissa

OLD
GeoJSON objects represent geographic features only and do not specify
associations between geographic features and particular devices, users, =
or
facilities. Any association with a particular device, user, or facility =
requires
another protocol. As such, a GeoJSON object does not fit the "Location
Information" definition according to Section 5.2 of RFC 3693, because =
there is
not necessarily a "Device" involved. Because there is also no way to =
specify the
identity of a "Target" within the confines of a GeoJSON object, it also =
does not
fit the specification of a "Location Object" (Section 5.2 of RFC 3693, =
Section
3.2 of RFC 6280). When a GeoJSON object is used in a context where it =
identifies
the location of a Target, it becomes subject to the architectural, =
security, and
privacy considerations in RFC 6280. The application of those =
considerations is
specific to protocols that make use of GeoJSON objects and is out of =
scope for
the GeoJSON WG. As the WG considers extensibility it will be careful not =
to
preclude extensions that would allow GeoJSON objects to become location =
objects
unless the group determines such extensibility would be harmful.=20


NEW
GeoJSON objects represent geographic features only and do not specify
associations between geographic features and particular devices, users, =
or
facilities. Any association with a particular device, user, or facility =
requires
another protocol. When a GeoJSON object is used in a context where it =
identifies
the location of a device, user, or facility, it becomes subject to the
architectural, security, and privacy considerations in RFC 6280. The =
application
of those considerations is specific to protocols that make use of =
GeoJSON
objects and is out of scope for the GeoJSON WG. Although the WG is =
chartered to
improve the extensibility of the format, extensions that would allow =
GeoJSON
objects to specify associations between geographic features and =
particular
devices, users, or facilities are not expected to be defined in the WG. =
Should
that be needed, re-chartering will be required.



--Apple-Mail=_DE9233BC-80DC-4B45-9712-DFB1E5897D74
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<html><head><meta http-equiv=3D"Content-Type" content=3D"text/html =
charset=3Dutf-8"></head><body style=3D"word-wrap: break-word; =
-webkit-nbsp-mode: space; -webkit-line-break: after-white-space;" =
class=3D"">I=E2=80=99ve made an update to the geojson charter text in =
response to the list discussion with Paul, Carl, and Stephen. I have =
removed the text about location objects since that seemed to confuse =
people and was superfluous given the point being made about target =
identity. I also changed the last sentence per my exchange with Stephen, =
but inserted a note about the extensibility of the format to try to =
capture Robert=E2=80=99s earlier comments. The changes to the paragraph =
are below and the full charter is at &lt;<a =
href=3D"http://datatracker.ietf.org/doc/charter-ietf-geojson/" =
class=3D"">http://datatracker.ietf.org/doc/charter-ietf-geojson/</a>&gt;. =
Please shout if you think this charter is not ready for external =
review.<div class=3D""><br class=3D""></div><div =
class=3D"">Thanks,</div><div class=3D"">Alissa<br class=3D""><div =
class=3D""><br class=3D""></div><div class=3D"">OLD</div><div =
class=3D""><pre style=3D"box-sizing: border-box; overflow: auto; =
font-family: 'PT Mono', Monaco, monospace; font-size: 14px; padding: =
10px; margin-top: 0px; margin-bottom: 10.5px; line-height: 1.214; =
word-break: break-all; word-wrap: break-word; border: 1px solid rgb(204, =
204, 204); border-top-left-radius: 4px; border-top-right-radius: 4px; =
border-bottom-right-radius: 4px; border-bottom-left-radius: 4px; widows: =
1; background-color: rgb(255, 253, 245);" class=3D"">GeoJSON objects =
represent geographic features only and do not specify
associations between geographic features and particular devices, users, =
or
facilities. Any association with a particular device, user, or facility =
requires
another protocol. As such, a GeoJSON object does not fit the "Location
Information" definition according to Section 5.2 of RFC 3693, because =
there is
not necessarily a "Device" involved. Because there is also no way to =
specify the
identity of a "Target" within the confines of a GeoJSON object, it also =
does not
fit the specification of a "Location Object" (Section 5.2 of RFC 3693, =
Section
3.2 of RFC 6280). When a GeoJSON object is used in a context where it =
identifies
the location of a Target, it becomes subject to the architectural, =
security, and
privacy considerations in RFC 6280. The application of those =
considerations is
specific to protocols that make use of GeoJSON objects and is out of =
scope for
the GeoJSON WG. As the WG considers extensibility it will be careful not =
to
preclude extensions that would allow GeoJSON objects to become location =
objects
unless the group determines such extensibility would be harmful. =
</pre><div class=3D""><br class=3D""></div></div><div class=3D""><br =
class=3D""></div><div class=3D"">NEW</div><div class=3D""><pre =
style=3D"box-sizing: border-box; overflow: auto; font-family: 'PT Mono', =
Monaco, monospace; font-size: 14px; padding: 10px; margin-top: 0px; =
margin-bottom: 10.5px; line-height: 1.214; word-break: break-all; =
word-wrap: break-word; border: 1px solid rgb(204, 204, 204); =
border-top-left-radius: 4px; border-top-right-radius: 4px; =
border-bottom-right-radius: 4px; border-bottom-left-radius: 4px; widows: =
1; background-color: rgb(255, 253, 245);" class=3D"">GeoJSON objects =
represent geographic features only and do not specify
associations between geographic features and particular devices, users, =
or
facilities. Any association with a particular device, user, or facility =
requires
another protocol. When a GeoJSON object is used in a context where it =
identifies
the location of a device, user, or facility, it becomes subject to the
architectural, security, and privacy considerations in RFC 6280. The =
application
of those considerations is specific to protocols that make use of =
GeoJSON
objects and is out of scope for the GeoJSON WG. Although the WG is =
chartered to
improve the extensibility of the format, extensions that would allow =
GeoJSON
objects to specify associations between geographic features and =
particular
devices, users, or facilities are not expected to be defined in the WG. =
Should
that be needed, re-chartering will be required.</pre><div class=3D""><br =
class=3D""></div><div class=3D""><br =
class=3D""></div></div></div></body></html>=

--Apple-Mail=_DE9233BC-80DC-4B45-9712-DFB1E5897D74--


From nobody Thu Sep 10 17:01:34 2015
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To: Alissa Cooper <alissa@cooperw.in>, dispatch@ietf.org, geopriv mailing list <geopriv@ietf.org>
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From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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Cc: Stephen Farrell <stephen.farrell@cs.tcd.ie>, Carl Reed <creed@opengeospatial.org>, Erik Wilde <dret@berkeley.edu>
Subject: Re: [dispatch] Updated geojson charter text
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WFM.

	Thanks,
	Paul

On 9/10/15 7:14 PM, Alissa Cooper wrote:
> I’ve made an update to the geojson charter text in response to the list
> discussion with Paul, Carl, and Stephen. I have removed the text about
> location objects since that seemed to confuse people and was superfluous
> given the point being made about target identity. I also changed the
> last sentence per my exchange with Stephen, but inserted a note about
> the extensibility of the format to try to capture Robert’s earlier
> comments. The changes to the paragraph are below and the full charter is
> at <http://datatracker.ietf.org/doc/charter-ietf-geojson/>. Please shout
> if you think this charter is not ready for external review.
>
> Thanks,
> Alissa
>
> OLD
>
> GeoJSON objects represent geographic features only and do not specify
> associations between geographic features and particular devices, users, or
> facilities. Any association with a particular device, user, or facility requires
> another protocol. As such, a GeoJSON object does not fit the "Location
> Information" definition according to Section 5.2 of RFC 3693, because there is
> not necessarily a "Device" involved. Because there is also no way to specify the
> identity of a "Target" within the confines of a GeoJSON object, it also does not
> fit the specification of a "Location Object" (Section 5.2 of RFC 3693, Section
> 3.2 of RFC 6280). When a GeoJSON object is used in a context where it identifies
> the location of a Target, it becomes subject to the architectural, security, and
> privacy considerations in RFC 6280. The application of those considerations is
> specific to protocols that make use of GeoJSON objects and is out of scope for
> the GeoJSON WG. As the WG considers extensibility it will be careful not to
> preclude extensions that would allow GeoJSON objects to become location objects
> unless the group determines such extensibility would be harmful.
>
>
>
> NEW
>
> GeoJSON objects represent geographic features only and do not specify
> associations between geographic features and particular devices, users, or
> facilities. Any association with a particular device, user, or facility requires
> another protocol. When a GeoJSON object is used in a context where it identifies
> the location of a device, user, or facility, it becomes subject to the
> architectural, security, and privacy considerations in RFC 6280. The application
> of those considerations is specific to protocols that make use of GeoJSON
> objects and is out of scope for the GeoJSON WG. Although the WG is chartered to
> improve the extensibility of the format, extensions that would allow GeoJSON
> objects to specify associations between geographic features and particular
> devices, users, or facilities are not expected to be defined in the WG. Should
> that be needed, re-chartering will be required.
>
>
>


From nobody Thu Sep 10 23:43:11 2015
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Date: Fri, 11 Sep 2015 08:43:07 +0200
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From: Steve Lhomme <slhomme@matroska.org>
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Subject: Re: [dispatch] Proposed charter for CELLAR: Codec Encoding for LossLess Archiving and Realtime transmission
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Same here, I support the creation of this working group.

On Tue, Sep 8, 2015 at 5:43 PM, Michael Niedermayer
<michael@niedermayer.cc> wrote:
> On Tue, Sep 08, 2015 at 09:56:22AM -0500, Adam Roach wrote:
>> I support creation of a working group with this set of goals, for
>> the reasons stated in the proposed charter's first paragraph. I have
>> no suggestions for improvements.
>
> +1
>
> [...]
>
> --
> Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
>
> It is what and why we do it that matters, not just one of them.
>
> _______________________________________________
> dispatch mailing list
> dispatch@ietf.org
> https://www.ietf.org/mailman/listinfo/dispatch
>



-- 
Steve Lhomme
Matroska association Chairman


From nobody Fri Sep 11 02:53:15 2015
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To: Paul Kyzivat <pkyzivat@alum.mit.edu>, Alissa Cooper <alissa@cooperw.in>, dispatch@ietf.org, geopriv mailing list <geopriv@ietf.org>
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From: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Cc: Carl Reed <creed@opengeospatial.org>, Erik Wilde <dret@berkeley.edu>
Subject: Re: [dispatch] Updated geojson charter text
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Looks good,
S.

On 11/09/15 01:01, Paul Kyzivat wrote:
> WFM.
> 
>     Thanks,
>     Paul
> 
> On 9/10/15 7:14 PM, Alissa Cooper wrote:
>> I’ve made an update to the geojson charter text in response to the list
>> discussion with Paul, Carl, and Stephen. I have removed the text about
>> location objects since that seemed to confuse people and was superfluous
>> given the point being made about target identity. I also changed the
>> last sentence per my exchange with Stephen, but inserted a note about
>> the extensibility of the format to try to capture Robert’s earlier
>> comments. The changes to the paragraph are below and the full charter is
>> at <http://datatracker.ietf.org/doc/charter-ietf-geojson/>. Please shout
>> if you think this charter is not ready for external review.
>>
>> Thanks,
>> Alissa
>>
>> OLD
>>
>> GeoJSON objects represent geographic features only and do not specify
>> associations between geographic features and particular devices,
>> users, or
>> facilities. Any association with a particular device, user, or
>> facility requires
>> another protocol. As such, a GeoJSON object does not fit the "Location
>> Information" definition according to Section 5.2 of RFC 3693, because
>> there is
>> not necessarily a "Device" involved. Because there is also no way to
>> specify the
>> identity of a "Target" within the confines of a GeoJSON object, it
>> also does not
>> fit the specification of a "Location Object" (Section 5.2 of RFC 3693,
>> Section
>> 3.2 of RFC 6280). When a GeoJSON object is used in a context where it
>> identifies
>> the location of a Target, it becomes subject to the architectural,
>> security, and
>> privacy considerations in RFC 6280. The application of those
>> considerations is
>> specific to protocols that make use of GeoJSON objects and is out of
>> scope for
>> the GeoJSON WG. As the WG considers extensibility it will be careful
>> not to
>> preclude extensions that would allow GeoJSON objects to become
>> location objects
>> unless the group determines such extensibility would be harmful.
>>
>>
>>
>> NEW
>>
>> GeoJSON objects represent geographic features only and do not specify
>> associations between geographic features and particular devices,
>> users, or
>> facilities. Any association with a particular device, user, or
>> facility requires
>> another protocol. When a GeoJSON object is used in a context where it
>> identifies
>> the location of a device, user, or facility, it becomes subject to the
>> architectural, security, and privacy considerations in RFC 6280. The
>> application
>> of those considerations is specific to protocols that make use of GeoJSON
>> objects and is out of scope for the GeoJSON WG. Although the WG is
>> chartered to
>> improve the extensibility of the format, extensions that would allow
>> GeoJSON
>> objects to specify associations between geographic features and
>> particular
>> devices, users, or facilities are not expected to be defined in the
>> WG. Should
>> that be needed, re-chartering will be required.
>>
>>
>>
> 


From nobody Fri Sep 11 05:07:42 2015
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To: Steve Lhomme <slhomme@matroska.org>
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Cc: DISPATCH <dispatch@ietf.org>
Subject: Re: [dispatch] Proposed charter for CELLAR: Codec Encoding for LossLess Archiving and Realtime transmission
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I support the creation of this wg

On Thu, Sep 10, 2015 at 11:43 PM, Steve Lhomme <slhomme@matroska.org> wrote:

> Same here, I support the creation of this working group.
>
> On Tue, Sep 8, 2015 at 5:43 PM, Michael Niedermayer
> <michael@niedermayer.cc> wrote:
> > On Tue, Sep 08, 2015 at 09:56:22AM -0500, Adam Roach wrote:
> >> I support creation of a working group with this set of goals, for
> >> the reasons stated in the proposed charter's first paragraph. I have
> >> no suggestions for improvements.
> >
> > +1
> >
> > [...]
> >
> > --
> > Michael     GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB
> >
> > It is what and why we do it that matters, not just one of them.
> >
> > _______________________________________________
> > dispatch mailing list
> > dispatch@ietf.org
> > https://www.ietf.org/mailman/listinfo/dispatch
> >
>
>
>
> --
> Steve Lhomme
> Matroska association Chairman
>
> _______________________________________________
> dispatch mailing list
> dispatch@ietf.org
> https://www.ietf.org/mailman/listinfo/dispatch
>

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<div dir=3D"ltr">I support the creation of this wg</div><div class=3D"gmail=
_extra"><br><div class=3D"gmail_quote">On Thu, Sep 10, 2015 at 11:43 PM, St=
eve Lhomme <span dir=3D"ltr">&lt;<a href=3D"mailto:slhomme@matroska.org" ta=
rget=3D"_blank">slhomme@matroska.org</a>&gt;</span> wrote:<br><blockquote c=
lass=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;=
padding-left:1ex">Same here, I support the creation of this working group.<=
br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
On Tue, Sep 8, 2015 at 5:43 PM, Michael Niedermayer<br>
&lt;michael@niedermayer.cc&gt; wrote:<br>
&gt; On Tue, Sep 08, 2015 at 09:56:22AM -0500, Adam Roach wrote:<br>
&gt;&gt; I support creation of a working group with this set of goals, for<=
br>
&gt;&gt; the reasons stated in the proposed charter&#39;s first paragraph. =
I have<br>
&gt;&gt; no suggestions for improvements.<br>
&gt;<br>
&gt; +1<br>
&gt;<br>
&gt; [...]<br>
&gt;<br>
&gt; --<br>
&gt; Michael=C2=A0 =C2=A0 =C2=A0GnuPG fingerprint: 9FF2128B147EF6730BADF133=
611EC787040B0FAB<br>
&gt;<br>
&gt; It is what and why we do it that matters, not just one of them.<br>
&gt;<br>
</div></div><span class=3D"im HOEnZb">&gt; ________________________________=
_______________<br>
&gt; dispatch mailing list<br>
&gt; <a href=3D"mailto:dispatch@ietf.org">dispatch@ietf.org</a><br>
&gt; <a href=3D"https://www.ietf.org/mailman/listinfo/dispatch" rel=3D"nore=
ferrer" target=3D"_blank">https://www.ietf.org/mailman/listinfo/dispatch</a=
><br>
&gt;<br>
<br>
<br>
<br>
</span><span class=3D"HOEnZb"><font color=3D"#888888">--<br>
Steve Lhomme<br>
Matroska association Chairman<br>
</font></span><div class=3D"HOEnZb"><div class=3D"h5"><br>
_______________________________________________<br>
dispatch mailing list<br>
<a href=3D"mailto:dispatch@ietf.org">dispatch@ietf.org</a><br>
<a href=3D"https://www.ietf.org/mailman/listinfo/dispatch" rel=3D"noreferre=
r" target=3D"_blank">https://www.ietf.org/mailman/listinfo/dispatch</a><br>
</div></div></blockquote></div><br></div>

--f46d0435c06ab0dbb2051f778f10--


From nobody Fri Sep 11 09:02:29 2015
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From: Sean Gillies <sean.gillies@gmail.com>
To: Stephen Farrell <stephen.farrell@cs.tcd.ie>
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Cc: geopriv mailing list <geopriv@ietf.org>, DISPATCH list <dispatch@ietf.org>, Erik Wilde <dret@berkeley.edu>, Carl Reed <creed@opengeospatial.org>
Subject: Re: [dispatch] Updated geojson charter text
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Thumbs up from me. Thanks, Alissa.

On Fri, Sep 11, 2015 at 3:53 AM, Stephen Farrell <stephen.farrell@cs.tcd.ie=
>
wrote:

>
> Looks good,
> S.
>
> On 11/09/15 01:01, Paul Kyzivat wrote:
> > WFM.
> >
> >     Thanks,
> >     Paul
> >
> > On 9/10/15 7:14 PM, Alissa Cooper wrote:
> >> I=E2=80=99ve made an update to the geojson charter text in response to=
 the list
> >> discussion with Paul, Carl, and Stephen. I have removed the text about
> >> location objects since that seemed to confuse people and was superfluo=
us
> >> given the point being made about target identity. I also changed the
> >> last sentence per my exchange with Stephen, but inserted a note about
> >> the extensibility of the format to try to capture Robert=E2=80=99s ear=
lier
> >> comments. The changes to the paragraph are below and the full charter =
is
> >> at <http://datatracker.ietf.org/doc/charter-ietf-geojson/>. Please
> shout
> >> if you think this charter is not ready for external review.
> >>
> >> Thanks,
> >> Alissa
> >>
> >> OLD
> >>
> >> GeoJSON objects represent geographic features only and do not specify
> >> associations between geographic features and particular devices,
> >> users, or
> >> facilities. Any association with a particular device, user, or
> >> facility requires
> >> another protocol. As such, a GeoJSON object does not fit the "Location
> >> Information" definition according to Section 5.2 of RFC 3693, because
> >> there is
> >> not necessarily a "Device" involved. Because there is also no way to
> >> specify the
> >> identity of a "Target" within the confines of a GeoJSON object, it
> >> also does not
> >> fit the specification of a "Location Object" (Section 5.2 of RFC 3693,
> >> Section
> >> 3.2 of RFC 6280). When a GeoJSON object is used in a context where it
> >> identifies
> >> the location of a Target, it becomes subject to the architectural,
> >> security, and
> >> privacy considerations in RFC 6280. The application of those
> >> considerations is
> >> specific to protocols that make use of GeoJSON objects and is out of
> >> scope for
> >> the GeoJSON WG. As the WG considers extensibility it will be careful
> >> not to
> >> preclude extensions that would allow GeoJSON objects to become
> >> location objects
> >> unless the group determines such extensibility would be harmful.
> >>
> >>
> >>
> >> NEW
> >>
> >> GeoJSON objects represent geographic features only and do not specify
> >> associations between geographic features and particular devices,
> >> users, or
> >> facilities. Any association with a particular device, user, or
> >> facility requires
> >> another protocol. When a GeoJSON object is used in a context where it
> >> identifies
> >> the location of a device, user, or facility, it becomes subject to the
> >> architectural, security, and privacy considerations in RFC 6280. The
> >> application
> >> of those considerations is specific to protocols that make use of
> GeoJSON
> >> objects and is out of scope for the GeoJSON WG. Although the WG is
> >> chartered to
> >> improve the extensibility of the format, extensions that would allow
> >> GeoJSON
> >> objects to specify associations between geographic features and
> >> particular
> >> devices, users, or facilities are not expected to be defined in the
> >> WG. Should
> >> that be needed, re-chartering will be required.
> >>
> >>
> >>
> >
>



--=20
Sean Gillies

--f46d043be24e1629e1051f7ad738
Content-Type: text/html; charset=UTF-8
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<div dir=3D"ltr">Thumbs up from me. Thanks, Alissa.<br></div><div class=3D"=
gmail_extra"><br><div class=3D"gmail_quote">On Fri, Sep 11, 2015 at 3:53 AM=
, Stephen Farrell <span dir=3D"ltr">&lt;<a href=3D"mailto:stephen.farrell@c=
s.tcd.ie" target=3D"_blank">stephen.farrell@cs.tcd.ie</a>&gt;</span> wrote:=
<br><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-lef=
t:1px #ccc solid;padding-left:1ex"><br>
Looks good,<br>
S.<br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
On 11/09/15 01:01, Paul Kyzivat wrote:<br>
&gt; WFM.<br>
&gt;<br>
&gt;=C2=A0 =C2=A0 =C2=A0Thanks,<br>
&gt;=C2=A0 =C2=A0 =C2=A0Paul<br>
&gt;<br>
&gt; On 9/10/15 7:14 PM, Alissa Cooper wrote:<br>
&gt;&gt; I=E2=80=99ve made an update to the geojson charter text in respons=
e to the list<br>
&gt;&gt; discussion with Paul, Carl, and Stephen. I have removed the text a=
bout<br>
&gt;&gt; location objects since that seemed to confuse people and was super=
fluous<br>
&gt;&gt; given the point being made about target identity. I also changed t=
he<br>
&gt;&gt; last sentence per my exchange with Stephen, but inserted a note ab=
out<br>
&gt;&gt; the extensibility of the format to try to capture Robert=E2=80=99s=
 earlier<br>
&gt;&gt; comments. The changes to the paragraph are below and the full char=
ter is<br>
&gt;&gt; at &lt;<a href=3D"http://datatracker.ietf.org/doc/charter-ietf-geo=
json/" rel=3D"noreferrer" target=3D"_blank">http://datatracker.ietf.org/doc=
/charter-ietf-geojson/</a>&gt;. Please shout<br>
&gt;&gt; if you think this charter is not ready for external review.<br>
&gt;&gt;<br>
&gt;&gt; Thanks,<br>
&gt;&gt; Alissa<br>
&gt;&gt;<br>
&gt;&gt; OLD<br>
&gt;&gt;<br>
&gt;&gt; GeoJSON objects represent geographic features only and do not spec=
ify<br>
&gt;&gt; associations between geographic features and particular devices,<b=
r>
&gt;&gt; users, or<br>
&gt;&gt; facilities. Any association with a particular device, user, or<br>
&gt;&gt; facility requires<br>
&gt;&gt; another protocol. As such, a GeoJSON object does not fit the &quot=
;Location<br>
&gt;&gt; Information&quot; definition according to Section 5.2 of RFC 3693,=
 because<br>
&gt;&gt; there is<br>
&gt;&gt; not necessarily a &quot;Device&quot; involved. Because there is al=
so no way to<br>
&gt;&gt; specify the<br>
&gt;&gt; identity of a &quot;Target&quot; within the confines of a GeoJSON =
object, it<br>
&gt;&gt; also does not<br>
&gt;&gt; fit the specification of a &quot;Location Object&quot; (Section 5.=
2 of RFC 3693,<br>
&gt;&gt; Section<br>
&gt;&gt; 3.2 of RFC 6280). When a GeoJSON object is used in a context where=
 it<br>
&gt;&gt; identifies<br>
&gt;&gt; the location of a Target, it becomes subject to the architectural,=
<br>
&gt;&gt; security, and<br>
&gt;&gt; privacy considerations in RFC 6280. The application of those<br>
&gt;&gt; considerations is<br>
&gt;&gt; specific to protocols that make use of GeoJSON objects and is out =
of<br>
&gt;&gt; scope for<br>
&gt;&gt; the GeoJSON WG. As the WG considers extensibility it will be caref=
ul<br>
&gt;&gt; not to<br>
&gt;&gt; preclude extensions that would allow GeoJSON objects to become<br>
&gt;&gt; location objects<br>
&gt;&gt; unless the group determines such extensibility would be harmful.<b=
r>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt; NEW<br>
&gt;&gt;<br>
&gt;&gt; GeoJSON objects represent geographic features only and do not spec=
ify<br>
&gt;&gt; associations between geographic features and particular devices,<b=
r>
&gt;&gt; users, or<br>
&gt;&gt; facilities. Any association with a particular device, user, or<br>
&gt;&gt; facility requires<br>
&gt;&gt; another protocol. When a GeoJSON object is used in a context where=
 it<br>
&gt;&gt; identifies<br>
&gt;&gt; the location of a device, user, or facility, it becomes subject to=
 the<br>
&gt;&gt; architectural, security, and privacy considerations in RFC 6280. T=
he<br>
&gt;&gt; application<br>
&gt;&gt; of those considerations is specific to protocols that make use of =
GeoJSON<br>
&gt;&gt; objects and is out of scope for the GeoJSON WG. Although the WG is=
<br>
&gt;&gt; chartered to<br>
&gt;&gt; improve the extensibility of the format, extensions that would all=
ow<br>
&gt;&gt; GeoJSON<br>
&gt;&gt; objects to specify associations between geographic features and<br=
>
&gt;&gt; particular<br>
&gt;&gt; devices, users, or facilities are not expected to be defined in th=
e<br>
&gt;&gt; WG. Should<br>
&gt;&gt; that be needed, re-chartering will be required.<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;&gt;<br>
&gt;<br>
</div></div></blockquote></div><br><br clear=3D"all"><br>-- <br><div class=
=3D"gmail_signature">Sean Gillies</div>
</div>

--f46d043be24e1629e1051f7ad738--


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From: "Carl Reed" <creed@opengeospatial.org>
To: "Alissa Cooper" <alissa@cooperw.in>
References: <20150903111519.12341.48799.idtracker@ietfa.amsl.com> <CAFC1CD0-43EE-4F40-A755-C51D610FBD9A@cooperw.in> <55E83CFF.1040508@cs.tcd.ie> <99B958BA-B141-43D0-A7FB-26ABFDFD274A@cooperw.in> <55E848E3.10403@cs.tcd.ie> <88EE4F71-A95D-478B-B38C-B76D12D8873F@cooperw.in> <55E86027.9050903@cs.tcd.ie> <118F4B72-CD5A-4870-9E6D-D348CD6D2CCC@cooperw.in> <E4803BA91D0F4D2B8A5F2D24535C10DE@OfficeHP> <236228C1-7506-4009-AA78-62EEF3C3FF8F@cooperw.in>
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Subject: Re: [dispatch] [Geopriv] Stephen Farrell's Block on charter-ietf-geojson-00-01: (with BLOCK)
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Alissa -

Yes, thanks. Much appreciate the detailed response.

Regards

Carl


-----Original Message-----=20
From: Alissa Cooper
Sent: Monday, September 07, 2015 7:34 AM
To: Carl Reed
Cc: Stephen Farrell ; geopriv mailing list ; dispatch@ietf.org ; Erik Wil=
de=20
; IESG ; Scott Simmons ; Sean Gillies
Subject: Re: [Geopriv] Stephen Farrell's Block on=20
charter-ietf-geojson-00-01: (with BLOCK)

Hi Carl,

Thanks for this. I think the paragraph in the charter about whether GeoJS=
ON=20
objects are LOs was focusing on the target identity aspect. That is, the=20
definitions of LO given in RFC 3693 and RFC 6280 both assume that a locat=
ion=20
object describes the location of a target device. I definitely appreciate=
=20
that there are other implications of saying something is or is not a LO, =
so=20
perhaps the charter needs some re-phrasing.

The current thinking coming out of IETF 93 seemed to be that the GeoJSON=20
spec will define GeoJSON objects such that they represent geographic=20
features only and do not specify associations between geographic features=
=20
and particular devices. Of course, it will be fairly trivial for develope=
rs=20
to associate those objects with target identities of some sort =E2=80=94 =
the whole=20
point of specifying a json format is to make it easier to use geo=20
information in applications. And if the format is built to be extensible,=
=20
which generally would be a good thing, that raises the question about the=
=20
point at which we need to deal with the associated privacy and security=20
issues at the spec level should the format be extended to associate a=20
location with a target. To put it another way, the base spec could be=20
written (1) to preclude extensibility of this sort, (2) to allow=20
extensibility of this sort with the expectation that when extensions are=20
defined, the associated privacy and security implications will be address=
ed,=20
or (3) to allow extensibility of this sort and explain how future extensi=
ons=20
need to address privacy and security. Personally I think (1) is unlikely=20
given the versatility of json. The text Stephen and I were debating was=20
aimed at (2). You seem to be suggesting (3). Does that seem like an accur=
ate=20
assessment?

Alissa

> On Sep 3, 2015, at 8:51 AM, Carl Reed <creed@opengeospatial.org> wrote:
>
> Sorry to jump in. I have now read the entire thread, reviewed the chart=
er,=20
> and reviewed a number of RFCs on this topic (starting with 4119). Been =
a=20
> while! Before starting, I wish to state that I am not opposed to this W=
G=20
> activity - GeoJSON is an important spec and one now being used in OGC=20
> standards work as informational. I just have some concerns.
>
> In my mind, there is perhaps a more fundamental question: What is a=20
> Location Object? Back with the LO activity first started, the focus was=
 on=20
> extending PIDF to include location content. From that perspective, priv=
acy=20
> and location are closely coupled. However, over time the use of the=20
> location object became uncoupled from PIDF and as a result a number of=20
> other RFCs now speak to how to use a LO with SIP, RADIUS, and so on.=20
> Essentially, a LO can also be viewed as a stand alone package of locati=
on=20
> content with additional attributes such as uncertainty. When I worked o=
n=20
> these RFC, I never viewed LO as being tightly coupled with privacy but=20
> always viewed the LO as a data package that could be used with any numb=
er=20
> of other standards/specs or even as a standard alone payload. This is=20
> exactly what has happened. Don't get me wrong - the privacy implication=
s=20
> associated with location are critical - and scary. Predictive analytics=
=20
> experiments have shown that future individual movement activity can be=20
> predicted with close to 95% accuracy by analyzing past movement behavio=
r=20
> (a joint Harvard/MIT study).
>
> Therefore, I would suggest that a GeoJSON encoded payload is a location=
=20
> object. Consider that the PIDF-LO geodetic model is encoded using GML. =
The=20
> abstract model for geometry used in GML is ISO 19107: Spatial Schema=20
> (which is now in revision). The GeoJSON geometry model is also based on=
=20
> ISO 19107. The main difference between the two (other than the LO=20
> requirement for additional geometry types) is that GeoJSON encodes=20
> coordinates as longitude/latitude. GML encodes coordinates as=20
> latitude-longitude. There are also differences in how other coordinate=20
> reference systems are handled. While these differences are properly=20
> documented, I would strongly encourage the planned activity to consider=
:
>
> 1. Documenting the relationship (similarities and differences) between=20
> GeoJSON and a LO. This would allow developers to choose the appropriate=
=20
> implementation approach.
> 2. Have a section on threat analysis and security
> 3. Speak to how privacy issues could be addressed (back to item 1 also)=
.
>
> Perhaps I am being overly sensitive but location and privacy (along wit=
h=20
> provenance and uncertainty) are coming to the fore as major standards=20
> issues. The OGC is working these standards related issues more and more=
.=20
> Much of this is being driven by requirements to use location content=20
> associated "citizens as scientists" activities, volunteered geographic=20
> information, IoT, Smart Cities, and on and on.
>
> I know the GeoJSON authors do not wish to "overload" the GeoJSON spec. =
As=20
> such, I suspect many of my concerns could be easily addressed by=20
> referencing appropriate content from existing IETF RFCs. For example, t=
he=20
> content of 7459 Uncertainty and Confidence is quite appropriate for a=20
> GeoJSON encoding. Also, 7459 was reviewed and commented on by OGC Membe=
rs=20
> :-)
>
> Sorry for the long posting.
>
> Regards
>
> Carl Reed
> Geospatial Standards geek
>
> -----Original Message----- From: Alissa Cooper
> Sent: Thursday, September 03, 2015 9:02 AM
> To: Stephen Farrell
> Cc: geopriv@ietf.org ; dispatch@ietf.org ; Erik Wilde ; IESG
> Subject: Re: [Geopriv] Stephen Farrell's Block on=20
> charter-ietf-geojson-00-01: (with BLOCK)
>
> Ok, one more try and we=E2=80=99re there I think:
>
> OLD
> As the WG considers extensibility it will be careful not to
> preclude extensions that would allow GeoJSON objects to become location=
=20
> objects
> unless the group determines such extensibility would be harmful.
>
> NEW
> Extensions that would allow GeoJSON objects to become location objects =
are=20
> not expected to be defined in the WG. Should that be needed, re-charter=
ing=20
> will be required.
>
>> On Sep 3, 2015, at 7:58 AM, Stephen Farrell <stephen.farrell@cs.tcd.ie=
>=20
>> wrote:
>>
>>
>> Better again. You could maybe add that's not expected to happen
>> during the lifetime of this wg but that'd be fine.
>>
>> S
>>
>> On 03/09/15 15:57, Alissa Cooper wrote:
>>> NEW Should extensions that would allow GeoJSON objects to become
>>> location objects be needed, re-chartering will be required.
>
> _______________________________________________
> Geopriv mailing list
> Geopriv@ietf.org
> https://www.ietf.org/mailman/listinfo/geopriv


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Subject: [dispatch] Nominations needed for IESG, IAB, and IAOC
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The Nominating Committee (NomCom) has put out calls for nominations
(see below) for the IESG, IAB, and IAOC positions it's tasked with
filling.  Alissa Cooper and Barry Leiba are the two ART ADs whose
terms end and whose positions need to be filled. Both are planning to
stand for another term.

Even if you think the current ADs are doing a good job, we encourage
you to make nominations if you know of folks who are willing to serve
or if you're willing to serve yourself. All three of us are available
to chat about the AD role or to put you in touch with other current or
former ADs, IAB members, or IAOC members if you're thinking about
standing for one of the open positions.

The NomCom will also need your input to its deliberations, so when the
time comes and they call for comments, please provide your feedback.

Ben, Barry, and Alissa

Links:
Nominations: https://datatracker.ietf.org/nomcom/2015/nominate/
Desired expertise for ADs:
https://datatracker.ietf.org/nomcom/2015/requirements/
Call for nominations (copied below):
http://www.ietf.org/mail-archive/web/ietf-announce/current/msg14498.html

---------------------------------------------

From: NomCom Chair 2015 <nomcom-chair-2015@ietf.org>
To: "IETF Announcement List" <ietf-announce@ietf.org>
Subject: NomCom 2015: Call for nominations
Date: Wed, 26 Aug 2015 03:13:13 -0700
Cc: ietf@ietf.org
Reply-To: ietf@ietf.org, nomcom15@ietf.org

The 2015-16 Nominating Committee (Nomcom) is seeking nominations from
now until October 8, 2015. The open positions being considered by this
year's Nomcom can be found at the end of this email and also on this
year's Nomcom website:

https://datatracker.ietf.org/nomcom/2015/

Nominations may be made by selecting the Nominate link at the top of
the Nomcom 2015 home page, or by visiting the following URL:

https://datatracker.ietf.org/nomcom/2015/nominate/

{Note that nominations made using the web tool require an ietf.org
 datatracker account. You can create a datatracker ietf.org account
 if you don't have one already by visiting the following URL:
 https://datatracker.ietf.org/accounts/create/ }

If you are unable to use the web form, nominations may instead be made
by email to nomcom15@ietf.org. If using email, please include the word
"Nominate" in the Subject and indicate in the email who is being
nominated, their email address (to confirm acceptance of the
nomination), and the position for which you are making the nomination.
If you are nominating someone other than yourself, please tell us if
we may tell the nominee that you were the one who made the nomination.
If you wish to nominate someone via email for more than one position,
please use separate emails to do so.

Self-nomination is welcome!

NomCom 2015-16 will follow the policy for "Open Disclosure of Willing
Nominees" described in BCP 10/RFC 7437.  As stated in RFC 7437: "The
list of nominees willing to be considered for positions under review
in the current Nomcom cycle is not confidential". Willing nominees for
each position will be listed in a publicly accessible way - anyone
with a datatracker account may access the lists.  Additionally, the
nomination form asks if we may share your own name with the
nominee. In all other ways, the confidentiality requirements of BCP10
remain in effect.  All feedback and all Nomcom deliberations will
remain confidential and will not be disclosed.

There is a field on the form you can mark in order to allow the Nomcom
to tell the nominee that you were the one who made the
nomination. This is a new thing this year, and it defaults to =C3=A2=E2=82=
=AC=C5=93no=C3=A2=E2=82=AC  -
we won=C3=A2=E2=82=AC=E2=84=A2t tell. After the nomination cycle, we will e=
valuate the result
of this and recommend whether the next Nomcom should do something
different.

In order to ensure time to collect sufficient community feedback about
each of the willing nominees, nominations must be received by the
Nomcom on or before October 8, 2015.

Please submit your nominations as early as possible for the sake of
your nominees. Note that nominations should not wait for management
permission, as it is easier to decline the nomination than put one in
late.  We have set the questionnaire submission deadline for October
15, 2015.

The Nomcom appoints individuals to fill the open slots on the IAOC,
the IAB, and the IESG. The list of people and posts whose terms end
with the March 2016 IETF meeting, and thus the positions for which
this Nomcom is responsible, follows:

IAB:
* Mary Barnes
* Joe Hildebrand
* Ted Hardie
* Erik Nordmark
* Brian Trammell
* Mark Blanchet

IESG:
- Alissa Cooper, ART
- Barry Leiba, ART
- Brian Haberman, Internet (*)
- Benoit Claise, O&M
- Alia Atlas, Routing
- Kathleen Moriarty, Security
- Martin Stiemerling, Transport (*)

*- have indicated that they do not intend to accept a
renomination. This information is always up to date on
https://datatracker.ietf.org/nomcom/2015/

Please be resourceful in identifying possible candidates for these
positions, as developing our talent is a very crucial requirement for
the IETF, and also, please consider accepting a nomination.  You'll
find extensive information about specific positions, developed by the
IAB, IESG, and IAOC, under individual tabs at:

https://datatracker.ietf.org/nomcom/2015/requirements/

In addition to nominations, the Nomcom seeks community input on the
positions themselves.  We need and welcome the community's views and
input on the jobs within each organization. If you have ideas on the
positions' responsibilities (more, less, different), please let us
know.

Please send suggestions and feedback about this to nomcom15@ietf.org.

Thank you for your help in identifying qualified nominees!

Harald Alvestrand
Nomcom Chair 2015-16
nomcom-chair-2015@ietf.org, hta+nomcom@alvestrand.no

---------------------------------------------


From nobody Mon Sep 14 10:05:01 2015
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From: "Pal Martinsen (palmarti)" <palmarti@cisco.com>
To: Ben Campbell <ben@nostrum.com>
Thread-Topic: [Ice] New version of the proposed charter
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Date: Wed, 16 Sep 2015 11:55:00 +0000
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Subject: Re: [dispatch] [Ice] New version of the proposed charter
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From nobody Sun Sep 20 23:50:14 2015
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From: Alan Johnston <alan.b.johnston@gmail.com>
To: DISPATCH <dispatch@ietf.org>
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Cc: dispatch-chairs@tools.ietf.org, draft-johnston-dispatch-osrtp@tools.ietf.org
Subject: [dispatch] Plan to Submit a Proposal for Opportunistic SRTP
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--001a1141d150e77c2b05203c4aa4
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All,

This is a notification of our plan to submit a proposal for Opportunistic
SRTP (OSRTP) to be considered by DISPATCH.  Background is available in our
draft:

     https://tools.ietf.org/html/draft-johnston-dispatch-osrtp

OSRTP is an implementation of Opportunistic Security (OS), as defined in
RFC 7435, and has a number of deployments and implementations.  The SIP
Forum is interested in having OSRTP in a future version of the SIPconnect
SIP trunking recommendation.

Thanks,
- Alan -

--001a1141d150e77c2b05203c4aa4
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<div dir=3D"ltr">All,<div><br></div><div>This is a notification of our plan=
 to submit a proposal for Opportunistic SRTP (OSRTP) to be considered by DI=
SPATCH.=C2=A0 Background is available in our draft:</div><div><br></div><di=
v>=C2=A0 =C2=A0 =C2=A0<a href=3D"https://tools.ietf.org/html/draft-johnston=
-dispatch-osrtp">https://tools.ietf.org/html/draft-johnston-dispatch-osrtp<=
/a></div><div><br></div><div>OSRTP is an=C2=A0implementation of Opportunist=
ic Security (OS), as defined in RFC 7435, and has a number of deployments a=
nd implementations.=C2=A0 The SIP Forum is interested in having OSRTP in a =
future version of the SIPconnect SIP trunking recommendation.</div><div><br=
></div><div>Thanks,</div><div>- Alan -</div></div>

--001a1141d150e77c2b05203c4aa4--


From nobody Tue Sep 22 09:02:46 2015
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Subject: Re: [dispatch] Plan to Submit a Proposal for Opportunistic SRTP
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I fully support the idea. But this I-D seems to be a little more than a reference to 
draft-kaplan-mmusic-best-effort-srtp-01...


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All,

Here is proposed text for an OSRTP Working Group which we would request to
be dispatched.  We are not sure that we really need to form a working group
in order to publish what is effectively already industry best practices,
but this text is for discussion of the topic and the determination of the
path forward in here in dispatch.

Comments most welcome!

- Alan -

 - - - - - - - -

Charter for Opportunistic Security for RTP Working Group (OSRTP)

Real-time voice and video communication using RTP is widely used over the
Internet today, and much of it is negotiated using SIP and SDP
offer/answer.  Secure media transport negotiated using SIP and SDP with the
secure profile of RTP, SRTP, is unfortunately not widely deployed today for
voice and video communication.  One reason for this is the difficulty in
negotiating the use of SRTP.  SDP offer/answer was not originally designed
to negotiate profiles of RTP, and extensions such as SDP Capability
Negotiation, RFC 5939, have not achieved enough deployment to be useful for
negotiating secure media.  Without extensions, a caller needs to decide in
advance that secure media is used, but if chosen in advance and the called
party does not support it, the session will fail.  This presents a serious
barrier to incremental deployment of secure media.

Opportunistic Security (OS), defined in RFC 7435, is an approach to
security that defines a third mode for security between "cleartext" and
"comprehensive protection" that allows encryption and authentication to be
used if supported but will not result in failures if it is not supported.
An opportunistic approach for secure media would allow SRTP to be used if
the called party support the opportunistic approach, but will fall back to
RTP if the called party does not.  This will allow SRTP to be incrementally
introduced in voice and video communication networks during the transition
from no encryption to always-on encryption.

WG Objectives

This WG will work on a solution for Opportunistic SRTP (OSRTP) that does
not require SDP Capability Negotiation, but instead will be based on
currently deployed techniques in many voice and video systems that use SDP
offers that do not specify a secure profile, but instead use AVP and the
presence of SRTP keying SDP attributes in the SDP offer and answer to
negotiate secure media. The approach will be general enough to work with a
variety of SRTP key agreement protocols including, but not limited to SDP
Security Descriptions, DTLS-SRTP, and ZRTP.

It is important to note that OSRTP makes no changes, and has no effect on
media sessions in which the offer contains a secure profile of RTP, such as
SAVP. Also, approaches that always require secure media, such as RTCWEB,
will never utilize OSRTP.

As allowed by Opportunistic Security, some authentication requirements of
SRTP key agreement approaches will be relaxed.  However, confidentiality
requirements will not be relaxed.

The working group will perform the following work:

1. Define the goals and requirements of an Opportunistic Security approach
for RTP
2. Define a specification for OSRTP.

Non Goals

This work will not define any new extensions to SIP or SDP, but it may make
changes in some offer/answer procedures or authentication requirements of
key agreement protocols.  No changes to SRTP or RTP will be made.

Collaboration

The working group may coordinate with SIPCORE, MMUSIC, and AVTCORE as
needed.

Input to the WG

https://tools.ietf.org/html/draft-johnston-dispatch-osrtp (a starting point
for the goals and requirements and protocol)
https://tools.ietf.org/html/draft-kaplan-mmusic-best-effort-srtp-00 (for
historical reasons and background)

--001a1141d1507cd092052096e0ef
Content-Type: text/html; charset=UTF-8
Content-Transfer-Encoding: quoted-printable

<div dir=3D"ltr">All,<div><br></div><div>Here is proposed text for an OSRTP=
 Working Group which we would request to be dispatched.=C2=A0 We are not su=
re that we really need to form a working group in order to publish what is =
effectively already industry best practices, but this text is for discussio=
n of the topic and the determination of the path forward in here in dispatc=
h.</div><div><br></div><div>Comments most welcome!</div><div><br></div><div=
>- Alan -<br><div><br></div><div><div style=3D"font-size:12.8px">=C2=A0- - =
- - - - - -</div><div style=3D"font-size:12.8px"><br></div><div style=3D"fo=
nt-size:12.8px"><div><span class=3D"">Charter</span>=C2=A0for Opportunistic=
 Security for RTP Working Group (<span class=3D"">OSRTP</span>)</div><div><=
br></div><div>Real-time voice and video communication using RTP is widely u=
sed over the Internet today, and much of it is negotiated using SIP and SDP=
 offer/answer.=C2=A0 Secure media transport negotiated using SIP and SDP wi=
th the secure profile of RTP, SRTP, is unfortunately not widely deployed to=
day for voice and video communication.=C2=A0 One reason for this is the dif=
ficulty in negotiating the use of SRTP.=C2=A0 SDP offer/answer was not orig=
inally designed to negotiate profiles of RTP, and extensions such as SDP Ca=
pability Negotiation, RFC 5939, have not achieved enough deployment to be u=
seful for negotiating secure media. =C2=A0<span style=3D"font-size:12.8px">=
Without extensions, a caller needs to decide in advance that secure media i=
s used, but if chosen in advance and the called party does not support it, =
the session will fail.=C2=A0</span>=C2=A0This presents a serious barrier to=
 incremental deployment of secure media. =C2=A0</div><div><br></div><div>Op=
portunistic Security (OS), defined in RFC 7435, is an approach to security =
that defines a third mode for security between &quot;cleartext&quot; and &q=
uot;comprehensive protection&quot; that allows encryption and authenticatio=
n to be used if supported but will not result in failures if it is not supp=
orted.=C2=A0 An opportunistic approach for secure media would allow SRTP to=
 be used if the called party support the opportunistic approach, but will f=
all back to RTP if the called party does not.=C2=A0 This will allow SRTP to=
 be incrementally introduced in voice and video communication networks duri=
ng the transition from no encryption to always-on encryption.</div><div><br=
></div><div>WG Objectives</div><div><br></div><div>This WG will work on a s=
olution for Opportunistic SRTP (<span class=3D"">OSRTP</span>) that does no=
t require SDP Capability Negotiation, but instead will be based on currentl=
y deployed techniques in many voice and video systems that use SDP offers t=
hat do not specify a secure profile, but instead use AVP and the presence o=
f SRTP keying SDP attributes in the SDP offer and answer to negotiate secur=
e media. The approach will be general enough to work with a variety of SRTP=
 key agreement protocols including, but not limited to SDP Security Descrip=
tions, DTLS-SRTP, and ZRTP.</div><div><br></div><div>It is important to not=
e that=C2=A0<span class=3D"">OSRTP</span>=C2=A0makes no changes, and has no=
 effect on media sessions in which the offer contains a secure profile of R=
TP, such as SAVP. Also, approaches that always require secure media, such a=
s RTCWEB, will never utilize=C2=A0<span class=3D"">OSRTP</span>.</div><div>=
<br></div><div>As allowed by Opportunistic Security, some authentication re=
quirements of SRTP key agreement approaches will be relaxed.=C2=A0 However,=
 confidentiality requirements will not be relaxed.</div><div><br></div><div=
>The working group will perform the following work:</div><div><br></div><di=
v>1. Define the goals and requirements of an Opportunistic Security approac=
h for RTP</div><div>2. Define a specification for=C2=A0<span class=3D"">OSR=
TP</span>.</div><div><br></div><div>Non Goals</div><div><br></div><div>This=
 work will not define any new extensions to SIP or SDP, but it may make cha=
nges in some offer/answer procedures or authentication requirements of key =
agreement protocols.=C2=A0 No changes to SRTP or RTP will be made.=C2=A0</d=
iv><div><br></div><div>Collaboration</div><div><br></div><div>The working g=
roup may coordinate with SIPCORE, MMUSIC, and AVTCORE as needed.</div><div>=
<br></div><div>Input to the WG</div><div><br></div><div><a href=3D"https://=
tools.ietf.org/html/draft-johnston-dispatch-osrtp" target=3D"_blank">https:=
//tools.ietf.org/html/draft-johnston-dispatch-<span class=3D"">osrtp</span>=
</a>=C2=A0(a starting point for the goals and requirements and protocol)</d=
iv><div><a href=3D"https://tools.ietf.org/html/draft-kaplan-mmusic-best-eff=
ort-srtp-00" target=3D"_blank">https://tools.ietf.org/html/draft-kaplan-mmu=
sic-best-effort-srtp-00</a>=C2=A0(for historical reasons and background)</d=
iv></div></div></div></div>

--001a1141d1507cd092052096e0ef--


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<div dir="ltr"><br></div>

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State changed to IESG review.

URL: https://datatracker.ietf.org/doc/charter-ietf-geojson/


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Subject: [dispatch] Benoit Claise's No Objection on charter-ietf-geojson-00-02: (with COMMENT)
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Benoit Claise has entered the following ballot position for
charter-ietf-geojson-00-02: No Objection

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The document, along with other ballot positions, can be found here:
https://datatracker.ietf.org/doc/charter-ietf-geojson/



----------------------------------------------------------------------
COMMENT:
----------------------------------------------------------------------

Very consistent feedback with my previous review:

One readability improvement.
So many RFC numbers I have to lookup, in this charter: 5870, 7464, 3693,
6280. Sorry I don't know them all by heart.
A good convention is name + RFC, such as "JavaScript Object Notation
(JSON) [RFC7159]"

I guess it's a short-lived WG, right? Two deliverables and then closed,
right?
Would be worth mentioning IMO. In the milestones, that would be fine.



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From: "Ben Campbell" <ben@nostrum.com>
To: SIPCORE <sipcore@ietf.org>, "DISPATCH list" <dispatch@ietf.org>
Date: Wed, 30 Sep 2015 09:31:00 -0500
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Cc: Cullen Jennings <fluffy@iii.ca>
Subject: Re: [dispatch] [sipcore] [Technical Errata Reported] RFC7315 (4474)
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(+sipcore, dispatch)
(as individual)

I just realized this discussion did not include the sipcore or dispatch 
lists, and probably should.

Recap: Christer proposed an errata (4474) to RFC 7315. It proposes the 
following change:

> Section 5.4 says:
>
> extension-access-info  = gen-value
>
> It should say:
>
> extension-access-info  = generic-param

The generic-param construction allows the NAME = VALUE syntax as in the 
TS 24.229 extension Jean mentioned below.

Keeping in mind the RFC in question was for 3GPP: Is anyone aware of 
implementations of 7315 that would be broken by this? From Jean's 
example, it looks like 3GPP had already assumed generic-param.

Ben.

On 23 Sep 2015, at 16:23, A. Jean Mahoney wrote:

> FWIW - TS 24.229, which defines the values for access-info, considers 
> extension-access-info to be a generic-param, and not a gen-value as 
> specified RFC7315. 3GPP has defined one extension so far (7.2A.4):
>
>
> daylight-saving-time = "daylight-saving-time" EQUAL quoted-string
>
> TS 124 229 - V12.9.0 - Digital cellular telecommunications system
> (Phase 2+); Universal Mobile Telecommunications System (UMTS); LTE;
> IP multimedia call control protocol based on Session Initiation
> Protocol (SIP) and Session Description Protocol (SDP); Stage 3 (3GPP
> TS 24.229 version 12.9.0 Release 12) The daylight-saving-time is an
> instance of generic-param from the current extension-access-info
> component of the P- Access-Network-Info header field defined in RFC
> 7315 [52].
>
>
> Jean
>
>
>
> On 9/23/15 3:47 PM, Cullen Jennings wrote:
>> I can see that it might have been better if it had been done this way 
>> Christer is proposing but I don't see how you can change it now. This 
>> change would break existing parsers that checked this. That does not 
>> seem like an errata level thing to me.
>>
>>
>>> On Sep 21, 2015, at 10:30 AM, Ben Campbell <ben@nostrum.com> wrote:
>>>
>>> sipcore and dispatch chairs:
>>>
>>> Do you have any concerns about accepting Christer's errata? (I note 
>>> RFC 7315 was an orphaned sipping draft progressed as AD sponsored.)
>>>
>>> Ben.
>>>
>>> Forwarded message:
>>>
>>>> From: Christer Holmberg <christer.holmberg@ericsson.com>
>>>> To: Ben Campbell <ben@nostrum.com>
>>>> Cc: sipcore@ietf.org <sipcore@ietf.org>
>>>> Subject: Re: [sipcore] [Technical Errata Reported] RFC7315 (4474)
>>>> Date: Mon, 21 Sep 2015 10:26:26 +0000
>>>>
>>>> Any news on this?
>>>>
>>>> Regards,
>>>>
>>>> Christer
>>>>
>>>> From: sipcore [mailto:sipcore-bounces@ietf.org] On Behalf Of 
>>>> Christer Holmberg
>>>> Sent: 14. syyskuuta 2015 23:24
>>>> To: Ben Campbell
>>>> Cc: sipcore@ietf.org
>>>> Subject: Re: [sipcore] [Technical Errata Reported] RFC7315 (4474)
>>>>
>>>> Hi Ben,
>>>>
>>>> I am pretty sure generic-param was the original intention. The 
>>>> majority of all existing value follow the generic-param syntax, and 
>>>> I can't think of any reason why new values would not follow the 
>>>> same syntax. That is how it works for other header fields too.
>>>>
>>>> I think this is due to a mistake, where someone thought that 
>>>> extension-access-info  represents the actual parameter name, and 
>>>> therefor only a value (gen-value) is needed. But, 
>>>> extension-access-info represents the whole rule (name AND value), 
>>>> why generic-param is needed :)
>>>>
>>>> Regards,
>>>>
>>>> Christer
>>>>
>>>> Sent from my Windows Phone
>>>> ________________________________
>>>> From: Ben Campbell<mailto:ben@nostrum.com>
>>>> Sent: ‎14/‎09/‎2015 21:31
>>>> To: Christer Holmberg<mailto:christer.holmberg@ericsson.com>
>>>> Cc: sipcore@ietf.org<mailto:sipcore@ietf.org>
>>>> Subject: Re: [sipcore] [Technical Errata Reported] RFC7315 (4474)
>>>> Hi Christer,
>>>>
>>>> Is it your understanding that the use of generic-param was the 
>>>> actual
>>>> intention at the time 7315 was published? Or was gen-value the 
>>>> original
>>>> intention, but we now think that it should have been generic-param?
>>>>
>>>> Thanks!
>>>>
>>>> Ben.
>>>>
>>>> On 14 Sep 2015, at 6:22, Christer Holmberg wrote:
>>>>
>>>>> FYI,
>>>>>
>>>>> I've now submitted the errata.
>>>>>
>>>>> Regards,
>>>>>
>>>>> Christer
>>>>>
>>>>> -----Original Message-----
>>>>> From: RFC Errata System [mailto:rfc-editor@rfc-editor.org]
>>>>> Sent: 14. syyskuuta 2015 14:21
>>>>> To: r.jesske@telekom.de<mailto:r.jesske@telekom.de>; 
>>>>> drage@alcatel-lucent.com<mailto:drage@alcatel-lucent.com>; 
>>>>> Christer Holmberg;
>>>>> iesg@ietf.org<mailto:iesg@ietf.org>
>>>>> Cc: Christer Holmberg; 
>>>>> rfc-editor@rfc-editor.org<mailto:rfc-editor@rfc-editor.org>
>>>>> Subject: [Technical Errata Reported] RFC7315 (4474)
>>>>>
>>>>> The following errata report has been submitted for RFC7315, 
>>>>> "Private
>>>>> Header (P-Header) Extensions to the Session Initiation Protocol 
>>>>> (SIP)
>>>>> for the 3GPP".
>>>>>
>>>>> --------------------------------------
>>>>> You may review the report below and at:
>>>>> http://www.rfc-editor.org/errata_search.php?rfc=7315&eid=4474
>>>>>
>>>>> --------------------------------------
>>>>> Type: Technical
>>>>> Reported by: Christer Holmberg 
>>>>> <christer.holmberg@ericsson.com<mailto:christer.holmberg@ericsson.com>>
>>>>>
>>>>> Section: 5.4
>>>>>
>>>>> Original Text
>>>>> -------------
>>>>> extension-access-info  = gen-value
>>>>>
>>>>> Corrected Text
>>>>> --------------
>>>>> extension-access-info  = generic-param
>>>>>
>>>>> Notes
>>>>> -----
>>>>> Most of the pre-defined access-info values are following the
>>>>> generic-param syntax. New access-info values (extensions) should 
>>>>> also
>>>>> be allowed to follow the generic-param syntax, in order to allow 
>>>>> both
>>>>> for a name and value of the extension.
>>>>>
>>>>> Instructions:
>>>>> -------------
>>>>> This erratum is currently posted as "Reported". If necessary, 
>>>>> please
>>>>> use "Reply All" to discuss whether it should be verified or 
>>>>> rejected.
>>>>> When a decision is reached, the verifying party (IESG) can log in 
>>>>> to
>>>>> change the status and edit the report, if necessary.
>>>>>
>>>>> --------------------------------------
>>>>> RFC7315 (draft-drage-sipping-rfc3455bis-14)
>>>>> --------------------------------------
>>>>> Title               : Private Header (P-Header) Extensions to the
>>>>> Session Initiation Protocol (SIP) for the 3GPP
>>>>> Publication Date    : July 2014
>>>>> Author(s)           : R. Jesske, K. Drage, C. Holmberg
>>>>> Category            : INFORMATIONAL
>>>>> Source              : IETF - NON WORKING GROUP
>>>>> Area                : N/A
>>>>> Stream              : IETF
>>>>> Verifying Party     : IESG
>>>>>
>>>>> _______________________________________________
>>>>> sipcore mailing list
>>>>> sipcore@ietf.org<mailto:sipcore@ietf.org>
>>>>> https://www.ietf.org/mailman/listinfo/sipcore
>>>> _______________________________________________
>>>> sipcore mailing list
>>>> sipcore@ietf.org
>>>> https://www.ietf.org/mailman/listinfo/sipcore


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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Ben Campbell <ben@nostrum.com>, SIPCORE <sipcore@ietf.org>, DISPATCH list <dispatch@ietf.org>
Thread-Topic: [dispatch] [sipcore] [Technical Errata Reported] RFC7315 (4474)
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Subject: Re: [dispatch] [sipcore] [Technical Errata Reported] RFC7315 (4474)
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