MPTCP Robustness Against Large-Scale Man-in-the-Middle Attacks

Abstract : Multipath communications at the Internet scale have been a myth for a long time, with no actual protocol being deployed at large scale. Recently, the Multipath Transmission Control Protocol (MPTCP) extension was standardized and is undergoing rapid adoption in many different use-cases, from mobile to fixed access networks, from data-centers to core networks. Among its major benefits-i.e., reliability thanks to backup path rerouting, through-put increase thanks to link aggregation, and confidentiality being more difficult to intercept a full connection-the latter has attracted lower attention. How effective would be to use MPTCP, or an equivalent multipath transport layer protocol, to exploit multiple Internet-scale paths and decrease the probability of Man-in-the-Middle (MITM) attacks is a question which we try to answer. By analyzing the Autonomous System (AS) level graph, we identify which countries and regions show a higher level of robustness against MITM AS-level attacks, for example due to core cable tapping or route hijacking practices. 1
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Chi-Dung Phung, Benevid Felix Silva, Michele Nogueira, Stefano Secci. MPTCP Robustness Against Large-Scale Man-in-the-Middle Attacks. Computer Networks, Elsevier, 2019, 164, pp.106896. ⟨10.1016/j.comnet.2019.106896⟩. ⟨hal-02287761⟩

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