Re: [tor-dev] obfs4, meek, active probing and the timeline of pluggable transports

On Sat, Oct 27, 2018 at 05:20:06PM +0530, Piyush Kumar Sharma wrote:

3.) I searched a lot but could not find the timeline in which pluggable transports were built. As in what was developed and deployed first, obfs4 or meek?

For questions like this, see our metrics timeline page: https://trac.torproject.org/projects/tor/wiki/doc/MetricsTimeline

The three transports meek, ScrambleSuit, and obfs4 were deployed in Tor Browser roughly at the same time. ScrambleSuit was a predecessor of obfs4 that also deals with active probing. meek and ScrambleSuit were first in 4.0-alpha-1 (Aug 2014) and 4.0 (Oct 2014). obfs4 was first in 4.5-alpha1 (Nov 2014) and 4.5 (Apr 2015).