[OTR-dev] OTR Encrypted File Transfer, Spec Draft

Hans-Christoph Steiner hans at guardianproject.info
Thu Jun 6 11:19:48 EDT 2013



On 06/06/2013 06:18 AM, Abel Luck wrote:
> Michael Rogers:
>>  some quick tests with major IM networks to
>> check that you can push a large amount of data in-band before going to
>> the effort of designing a protocol. I suspect many will drop the
>> connection or even disable the account if you appear to be flooding.
>>
> 
> That's a good idea, but, there are other reasons for wanting in-band
> data than just file transfer.
> 
> For example, Guardian Project is implementing key synchronization among
> devices using in-band data. This likely won't get caught by rate-limiters.

We've tested some and found that maximum packet sizes are pretty big, like
20kb, and that in the course of our testing, we repeatedly transferred
10x-100x as much data as we'd need for a complete key sync.

hc



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