Awesome! I remember when that was just an experiment, but I had concerns about rate-limiting by XMPP providers and the ability to chat during the process. If that turns out to not be an issue, that's fantastic!
On Fri, Sep 6, 2013 at 10:17 AM, Ian Goldberg <i...@cypherpunks.ca> wrote: > On Fri, Sep 06, 2013 at 12:30:44AM -0400, Nathan of Guardian wrote: > > > > At this moment, I am transfering a 26MB file between two Android devices > > running ChatSecure (Gibberbot v12). The file transfer is fully encrypted > > using the "extra symmetric key" of OTRv3, and the conduit for transfer > > are the TLV data fields in the OTR protocol itself.One user is on a > > private XMPP service, and the other is on Google Talk. > > > > In summary, we are tunneling an fully verified, ephemerally encrypted > > file transfer inside of the ASCII message payload of XMPP, and it seems > > to be working like a charm. > > > > Data throughput *over Tor* is about 40kbps, with the 26MB file taking > > about 5-10 minute to transfer. > > > > We've merged the work into master, but if you want to look at the > > previously open pull request, you can find it here: > > https://github.com/guardianproject/Gibberbot/pull/261 > > > > Three cheers to DevRandom for some really groundbreaking work on this > > effort, and of course to Ian and the OTR team for providing this new > > functionality in OTRv3 in a way that we can take advantage of it. > > > > Now, how do we go about getting other OTR/XMPP apps to support OTR Data? > > Are there other similar implementations yet? > > > > https://dev.guardianproject.info/projects/gibberbot/wiki/Sharing > > Nice! > > Does the transfer happen "in the background", so that you can continue > chatting, or does it lock up your chat until the file transfer is > completed? > > Do you have a carefully documented spec for the TLV type, contents, and > semantics? > > - Ian > _______________________________________________ > OTR-dev mailing list > OTR-dev@lists.cypherpunks.ca > http://lists.cypherpunks.ca/mailman/listinfo/otr-dev >
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