[tor-dev] Pluggable Transports 2.0, draft 1 Specification
brandon at blanu.net
Sun Mar 26 09:48:44 UTC 2017
As was discussed in the Pluggable Transports session at TorDev Amsterdam, the
Pluggable Transports 2.0, draft 1 specification [https://www.
pluggabletransports.info/spec/pt2draft1] was created by a committee of
censorship circumvention tool developers: Tor, Lantern, Psiphon, and
uProxy. It specifies a version of Pluggable Transports that meets the needs
of multiple circumvention tools.
There is one major change that has implications for tor, which is that the
Pluggable Transports 2.0, draft 1 IPC protocol uses a different type of
SOCKS authentication mechanism, which allows for larger parameters to be
send to transports.
We are currently working on a 2nd draft of this specification, which will
incorporate changes and errata from the community censorship circumvention
tool community. For instance, syntactic errors in the documentation of the
Go interface will be fixed in draft 2. Tor developers participated in the
specification meetings, and now feedback from the overall Tor community is
requested for incorporation in the next draft. There will also likely be a
2.1 specification process, possibility starting August, where we will
consider larger changes.
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