Socks 5 tunnel with a bit crypto / obfuscation.

For every data chunk, a random initial vector is generated, which grants the stochastic behavior.

A delimiter is inserted after the ciphered data chunk, it helps decoding and may be used to perform poison attack on machine learning routers in the future.

It is in principle very similar to shadowsocks but with only 1/3 LOC because it's Ruby. And it's easier to change the cipher scheme for your own purpose.

Requires Ruby 1.9.2+ and an OS X / BSD / Linux server

git clone https://github.com/luikore/stochastic-socks.git
cd stochastic-socks
gem ins zscan
gem ins eventmachine
cp config.yml.example config.yml
# edit config
vi config.yml

Available ciphers:

aes-128-cbc aes-128-ecb
aes-192-cbc aes-192-ecb
aes-256-cbc aes-256-ecb

On server

ruby server.rb

On local

ruby local.rb

Prepare gems

gem ins rspec
gem ins pry

Then

ruby spec.rb

You can change coder.rb, reimplement encode/decode with your own cipher scheme.