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Abstract: This paper identifies new class of network steganography methods that utilizemechanisms to handle oversized packets in IP networks: IP fragmentation, PMTUDPath MTU Discovery and PLPMTUD Packetization Layer Path MTU Discovery. Inparticular, we propose two new steganographic methods and two extensions ofexisting ones. We show how IP fragmentation simplifies utilizing steganographicmethods which requires transmitter-receiver synchronization. We present howmentioned mechanisms can be used to enable hidden communication for bothversions of IP protocol: 4 and 6. Also the detection of the proposed methods isenclosed in this paper.



Author: Wojciech Mazurczyk, Krzysztof Szczypiorski

Source: https://arxiv.org/







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