Praneeth Kumar VippathallaChung ChanNavin KashyapQiaoqiao ZhouPositivity of Secret Key Capacity for Hypergraphical Sources with a Linear Wiretapper.726-7312022ITWhttps://doi.org/10.1109/ITW54588.2022.9965830conf/itw/2022db/conf/itw/itw2022.html#VippathallaCKZ22