From Facebook's Hackathon, TCP re-implemented over chat in a post-SOPA world

Peter Gutmann pgut001 at
Sun Dec 4 20:33:23 PST 2011

Eugen Leitl <eugen at> writes:

>To re-implement file transfer, we decided to hijack Facebook's speedy chat
>service to do our own packet transmission.

I've implemented SMTP over TCP/IP over postcards.  Latency was a bit of a
pain, and packet loss was also an issue.

The fact that I'm terrible at dealing with snail mail didn't help either.


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