- From: Harald Alvestrand <harald@alvestrand.no>
- Date: Tue, 03 Sep 2013 20:00:16 +0200
- To: Martin Thomson <martin.thomson@gmail.com>
- CC: Anne van Kesteren <annevk@annevk.nl>, "public-media-capture@w3.org" <public-media-capture@w3.org>
On 09/03/2013 07:37 PM, Martin Thomson wrote: > On 3 September 2013 08:10, Anne van Kesteren <annevk@annevk.nl> wrote: >>> (the whole question of "tainting" media with sharing restrictions is a >>> different question, also interesting.) >> I don't fully understand this scenario. > Imagine that you and I want to talk, and we don't trust the site to > not look at the media we are sending each other. This is a mechanism > whereby our two browsers are able to ensure that the media is > protected from observation or modification by the site. > > In essence, the content of the media is marked as untouchable by the > site in the same way that cross domain images can't be read or cross > domain frames can't be touched in any meaningful way, except with > express consent (through postMessage). > > If you are interested in learning more about this, I'm happy to > explain offline. I'm sure that there are plenty of others who > understand sufficiently too. Actually I'm not sure I have all the pieces, which makes it difficult to shepherd them into specs - if you can come up with text that explains how all the pieces fit together, and I understand it, that would make it much easier to make sure the specs actually say what they need to say. At the moment I'm pretty sure they don't.
Received on Tuesday, 3 September 2013 18:00:46 UTC