> On Feb 19, 2017, at 12:56, David Stainton <dstainton...@gmail.com> wrote: > > Hi. I'd like to announce txmix, a library for writing mixnets in python. > > https://github.com/applied-mixnetworks/txmix > > txmix is GPL3 licensed and currently depends on: > sphinxmixcrypto, Twisted, txtorcon, attrs, eliot > and Tor Project's chutney (for integration tests). > > txmix allows you to write mixnets with reduced code complexity and > transport agnosticism... however I've choosen to focus my development > efforts on the Tor onion transport for several reasons, the onion > transport has some properties which the UDP transport does not: > > - reliability > - forward secrecy > - NAT penetration > > Additionally the Tor anonymity properties are a welcome bonus since > they aren't really overlapping with those of the mixnet, they are > vulnerable to different types of attacks and accomodate for totally > different threat models. > > Currently txmix has some integration tests that use chutney to spin up > a local 25 relay tor network; builds a mixnet using onion services > as the transport and then tests functionality by sending and receiving > messages on the mixnet. > > > future development > ------------------ > > - txmix could certainly be used to write various kinds of mixnets, > however, we are missing a PKI. Without some kind of public key > infrastructure how will mix clients learn about mix public keys? > > - sphixmixcrypto library needs improvements that would allow us > to specify more message types such as dummy/cover traffic message > and heartbeat messages. These of course are essential for the defense > against certain known active attacks against some mix types. > > > questions, code review and pull requests welcome. > > > David Stainton
Very cool. To be perfectly honest I don't understand most of this in a lot of detail (starting with what a "mixnet" is), but thanks for using Twisted to do it :). -glyph _______________________________________________ Twisted-Python mailing list Twisted-Python@twistedmatrix.com http://twistedmatrix.com/cgi-bin/mailman/listinfo/twisted-python
