HEAAN is software library that implements homomorphic encryption (HE) that supports fixed point arithmetics. This library supports approximate operations between rational numbers. The approximate error depends on some parameters and almost same with floating point operation errors. The scheme in this library is on the paper "Homomorphic Encryption for Arithmetic of Approximate Numbers" (https://eprint.iacr.org/2016/421.pdf).
This library does not contain bootstrapping, you can find the library with bootstrapping in https://github.com/kimandrik/HEAANBOOT
This library is written by c++ and using NTL library (http://www.shoup.net/ntl/).
You can make a static library by typing "make all" in the /lib directory. After successful compilation you can find a static library libHEAAN.a in the /lib directory.
After you build libHEAAN.a, you can run a test program in the /run directory. In run.cpp, you need uncomment tests you need and type "make" in the /run directory. This command will run exe file "HEAAN".
We checked the program was working well on Ubuntu 16.04.2 LTS. You need to install NTL (with GMP), pThread, libraries.
Copyright (c) by CryptoLab inc. This program is licensed under a Creative Commons Attribution-NonCommercial 3.0 Unported License. You should have received a copy of the license along with this work. If not, see http://creativecommons.org/licenses/by-nc/3.0/.