This repository contains code corresponding to SiegeBreaker, which, consists of these major components:

1. Client, who wishes to use Decoy Routing and reach a censored website.
2. Overt-destination, a website, which censor thinks client wants to visit.
3. Covert-destination, a website, which client really wants to visit.
4. Proxy, a machine, who proxies client's traffic and fetches covert-destination for it.
5. SDN Controller, which installs relevant redirection rules on SDN switches.

These steps are for Ubuntu 18.04 and derivatives.

Following docker image has already dependencies installed. Thus we only need to build code.

1. docker pull himanshusagar/ubuntu_siegebreaker
2. cd /home/user/
3. git clone https://github.com/himanshusagar/SiegeBreakerV2
4. cd SiegeBreakerV2/
5. chmod +x build_code.sh
6. ./build_code.sh

Clone a fresh copy of code. Install Dependencies and Build Code.

1. git clone https://github.com/himanshusagar/SiegeBreakerV2
2. cd SiegeBreakerV2/
3. chmod +x build_dep.sh && chmod +x build_code.sh
4. ./build_dep.sh && ./build_code.sh

Install all dependencies and code one by one.

1. sudo apt update && sudo apt install gcc make python-minimal libssl-dev git python-pip

1. sudo apt install libgmp-dev build-essential python-dev python-pip libmpfr-dev libmpc-dev
2. pip install seccure

1. pip install ryu

1. sudo apt install libpcap-dev

There are two signaling mechanisms in place - "smtplib/imap" and webmail. "smtplib/imap" is written in python for sending emails, when invoked by client code. Any of them can be used with client's c code.

1. Install Chrome
2. Install ChromeDriver
3. Test whether chromedriver works by typing $ chromedriver in terminal.
4. pip install scapy selenium

1. pip install scapy easyimap

1. cd main
2. cd ./client/c
3. make
4. cd ../../

1. cd ./proxy/
2. make center
3. make single_conn
4. cd ../

git clone https://github.com/himanshusagar/SiegeBreakerV2

1. cd <repo_path>/main/client/c
2. sudo ./client.o OD_IP 443 URL TIMEOUT
3. Example Usage : sudo ./client.o https://allowed_site.com 443 https://censored_site/100M 40
4. By default, webmail singalling mechanism is used. This can be changed to "smtp/imap" based signaling in client.c by changing 'client_send.py' to 'smtp_client_send.py'

1. cd <repo_path>/main/proxy/
2. sudo ./center.o

1. cd <repo_path>/main/controller/
2. ryu-manager controller_HP3500yl.py
3. Depending upon which signalling mechanism used in client setup, run corresponding email receiver in controller system.

1. base64.h used from https://github.com/superwills/NibbleAndAHalf