Encryption over Hidden Services

[Nathan Freitas]

Is transport or message layer encryption redundant between a tor client
and a hidden service?

We are working on a simple "p2p" messaging service between Android
devices running Tor, with each running a hidden service to accept
messages. I am trying to figure out if we need to OTR or SSL on top of
this for any reason.

I am just trying to understand how far we should rely on encryption with
the Tor stack for this type of thing, vs. adding in our own bits (err,
bytes).

+n