Krajčovič, JozefAntal, EugenAntal, EugenMarák, Pavol2025-05-162025-05-1620251736-6305https://hdl.handle.net/10062/109747This paper provides an overview of encryption systems and steganographic techniques used by the Czechoslovak Maffie, which was an anti-Austrian underground resistance organization in 1914-1918.enAttribution-NonCommercial-NoDerivatives 4.0 Internationalhttps://creativecommons.org/licenses/by/4.0/Czechoslovak MaffieAustria-Hungaryunderground resistancemodified Vigenére cipherautokey cipherKryptograf cipher machineautoclave slide rulerCondenser PBJ cipher machineencryption systemssteganographic techniquesGreat War 1914-1918Article