Re: Draft finding - "Transitioning the Web to HTTPS"

> On 5 Jan 2015, at 12:52 pm, Martin Thomson <martin.thomson@gmail.com> wrote:
> 
> On 5 January 2015 at 03:04, Tim Berners-Lee <timbl@w3.org> wrote:
>> If the videos are all https: then he won't be able to cache them, except --
>> not to worry, the tools he buys will probably include MITM attack tools, so
>> in fact he *will* be able to cache things after all.
> 
> I think that it's a little sad that this is the only response we have
> to this situation.  Of course we can break the encryption.  It does
> instantly restore function to our existing toolchain.
> 
> Or, we could apply ourselves to the problem and then maybe we can have
> both security AND caching.
> 
> Jus' sayin’.

We were just talking about this at lunch. SRI is the most obvious candidate we have now.

My understanding is that there is *some* browser vendor interest in this direction, but they want to get more deployment experience with the more basic use cases for SRI first. 

The main problem I see is that SRI (or any other solution with reasonable security and caching properties) is effectively opt-in from the origin, and the takeup rates of HTTP caching for video (pre-HTTPS conversion) are already dismally low, AIUI. That doesn’t bode well — but maybe having end-to-end integrity would improve things.

Cheers,


--
Mark Nottingham   http://www.mnot.net/

Received on Tuesday, 6 January 2015 20:17:10 UTC