DECIPHER

GSM decipher based on the projects:

• Deka - An OpenCL A5/1 cracker https://brmlab.cz/project/gsm/deka/start
• Kraken - Decrypting GSM phone calls https://srlabs.de/bites/decrypting-gsm
• Rainbow Tables https://opensource.srlabs.de/projects/a51-decrypt/files

Prerequisites

The following prerequisites are required to build and run the project

• AMD CATALYST
• OPENCL
• AMD SDK
• CAL++
• PYRIT

sudo apt-get update
sudo apt-get install python3-dev swig3.0 python-pyopencl socket -y

Configure and Build

Obtaining the Source

git clone https://github.com/prkrmx/decipher.git

Config the tables

cd decipher/TableConvert/
make
cp TableConvert ../indexes/ 
cd ../indexes/
cp tables.conf.sample tables.conf

Edit the tables.conf where to store tables raw. In my case, I'm going to put all 40 tables in the device /dev/nvme1n1

Device: /dev/nvme1n1 40

Start the indexing process. It will take a couple of hours depending on your computer. In my case, table source: /media/mainuser/rbt_src

sudo ./Behemoth.py /media/mainuser/rbt_src