Based on security assumptions, the schemes are organized into
subpackages simple (s-IND-CPA security), and fullysec
(e.g. "fully secure", offering adaptive IND-CPA security).
Note that in both packages you will find single input as
well as multi input schemes. Construction of all multi input
schemes is based on the work of Abdalla et. al (see paper:
https://eprint.iacr.org/2017/972.pdf)