Advancing the Meet-in-the-Filter Technique: Applications to CHAM and KATAN This repository contains supporting code for the paper published at SAC 2022 titled Advancing the Meet-in-the-Filter Technique: Applications to CHAM and KATAN by Alex Biryukov, Je Sen Teh and Aleksei Udovenko. cham contains code for experiments on CHAM. katan contains code for experiments on KATAN. trails contains the differential trails used in the attacks on CHAM and KATAN.