Re: Issue-32, Sharing of data between entities via cookie syncing / identity brokering

* TOUBIANA, VINCENT (VINCENT) wrote:
>Proposed language:
>"The operator of third-party domain acting as a Supply Side Platform
>(SSP) receiving [DNT-ON] MAY start a cookie syncing procedure (i.e.
>transmit its segment ID  to DSP) but MUST NOT retain information related
>to the communication initiated by the User-Agent or any resulting
>communication.
>A third party acting as a Demand-Side Platform (DSP) receiving [DNT-ON]
>during a cookie syncing procedure MUST NOT collect, use or retain any
>information related to that communication."

There is no mention of the term "Supply Side Platform" on ietf.org that
I could find, and on w3.org all mentions of "cookie syncing" are in the
context of this Working Group. I don't think it is clear what this is
addressing to the typical person that might read the specification. It
seems likely some would consider "cookie syncing" to mean that they'll
transfer the login details from their desktop browser to their phone.

>Background:
>In a cookie syncing procedure a Demand-Side Platform (DSP) aim to match
>a cookieXYZ (corresponding to its domain) to the cookieABC set by the
>Supply Side Platform (SSP) for the same User-Agent U. Cookie syncing
>requires that the SSP adds a 1x1 pixel from the DSP domain. The SSP has
>to pass the string "cookieABC" corresponding to ids domain to the DSP
>through the URL of this 1x1 pixel. The DSP parses the "cookieABC" in the
>URL and associates it to the cookieXYZ for its domain. Once the cookies
>have been matches, the DSP will be able to re-target U on the SSP
>affiliated sites.

It would probably help to start with a scenario (in terms of a shopping
cart or login system or third party polling system or whatever) where
this is actually needed. As I understand it, the Working Group would
like to avoid being too technology-specific, and "cookie" and "pixel"
are very technology-specific.
-- 
Björn Höhrmann · mailto:bjoern@hoehrmann.de · http://bjoern.hoehrmann.de
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Received on Thursday, 22 December 2011 00:05:28 UTC