[guardian-dev] WebRTC

[Timur Mehrvarz]

WebRTC can go direct browser-to-browser and usually does so over UDP.
WebSockets (+relay) are only needed to help establish the WebRTC link.
It usually only takes a split second before the Websocket link is again
disconnected. Quick animation: http://mehrvarz.github.io/img/2e0cu.gif

On 07/30/2013 03:29 PM, Tim Prepscius wrote:
> Is it actually browser -> browser or is it browser -> web-socket-relay
> -> browser?
> 
> -tim
> 
> On 7/30/13, Timur Mehrvarz <timur.mehrvarz at riseup.net> wrote:
>> On 21.05.2013 22:17, Nathan of Guardian wrote:
>>> On 05/18/2013 06:34 PM, David Oliver wrote:
>>>
>>>> Also, what about WebRTC?  That's a Google-championed effort.
>>>
>>> There were a few WebRTC sessions at IO. I think it is still considered
>>> experimental.
>>>
>>
>> I've played around with WebRTC in Firefox and Chrome. I've written a
>> small but selfcontained RTC rendezvous ("signaling" in Google lingo)
>> service. Pure data (text based chat) currently works work best in
>> Firefox (22+ on the desktop; nightly 25+ on Android). Functionality is
>> stable and usability is great: all you need is the browser.
>>
>> Because WebRTC is about direct browser-to-browser communication,
>> anonymity is not what it provides. But I would like to find out what you
>> think about the security being provided. WebRTC is making use of
>> DTLS-SRTP keying (http://tools.ietf.org/html/rfc5764). I was a little
>> surprised to see that TCPdump is showing a constant data stream on the
>> UDP port, even when no user data is being transfered.
>>
>> As someone else asked in the Tox.im thread: is this secure and safe to use?
>>
>> -Timur
>>
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