How to install TFHE homomorphic encryption & run the tutorial

How to install the TFHE Fast Fully Homomorphic Encryption over the Torus library and run its tutorial on Linux.

Make sure you have the dependencies, for ubuntu it is:

sudo apt-get install build-essential cmake

Download the tfhe source tarball, extract it and enter the top directory

mkdir build
cd build

Change "/home/jorgen/usr/local" to where you want your local install below:

cmake ../src -DCMAKE_INSTALL_PREFIX=/home/jorgen/usr/local
make
make install

Download the example files from

https://tfhe.github.io/tfhe/assets/data/samples.tar.gz

Make sure you have correct paths by making a script called "initialize.sh" with the following content:

#configure environment variables
TFHE_PREFIX=/home/jorgen/usr/local #the prefix where you installed tfhe
export LIBRARY_PATH=$LIBRARY_PATH:$TFHE_PREFIX/lib
export C_INCLUDE_PATH=$C_INCLUDE_PATH:$TFHE_PREFIX/include
export CPLUS_INCLUDE_PATH=$CPLUS_INCLUDE_PATH:$TFHE_PREFIX/include

Run it from the terminal you are in with:

. initialize.sh

Enter the directory where the tutorial files are

Make a shell script called "run.sh" with the following contents:

g++ -o alice alice.c -ltfhe-spqlios-fma
g++ -o cloud cloud.c -ltfhe-spqlios-fma
g++ -o verif verif.c -ltfhe-spqlios-fma

chmod 755 alice
chmod 755 cloud
chmod 755 verif

./alice
./cloud
./verif

Run it

. run.sh