BV scheme
@article{brakerski2014efficient,
title={Efficient fully homomorphic encryption from (standard) LWE},
author={Brakerski, Zvika and Vaikuntanathan, Vinod},
journal={SIAM Journal on computing},
volume={43},
number={2},
pages={831--871},
year={2014},
publisher={SIAM},
url={https://eprint.iacr.org/2011/344.pdf}
}