Prerequisites

• SageMath

How to Use

git clone --recursive https://github.com/gong-cr/FHE-Security-Guidelines
cd FHE-Security-Guidelines

For generating the table of maximum log Q, run the script:

sh max_logQ_tables.sh

For example,

sage max_logQ_tables.py 128 0

Here, 128 is the security threshold, and 0 is the security margin. The script outputts the maximum log Q that achieves the security target as 128 + 0.

To test different parameters, edit in max_logQ_tables.py.