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Malicious Node Detection Method against Message Flooding Attacks in Sparse Mobile Ad-Hoc Networks

Authors:
Takuya Idezuka
Tomotaka Kimura
Kouji Hirata
Masahiro Muraguchi

Keywords: DTN; store-carry-forward routing; sparse mobile ad- hoc networks; message flooding

Abstract:
In recent years, many store-carry-forward routing schemes have been proposed for sparse mobile ad-hoc networks, which are the most representative networks in Delay/Disruption Tolerant Networking (DTN) environments. In general, store- carry-forward routing schemes are designed under an assumption that all nodes in the network are cooperative. Therefore, they are highly vulnerable to malicious behaviors. In this paper, we propose a malicious node detection method for message flooding attacks in which malicious nodes generate a lot of unnecessary messages to exhaust network resources. Our proposed method detects suspicious nodes in a distributed manner. Specifically, each node records suspicious scores for other nodes in the network. Whenever two nodes encounter each other, their suspicious scores are updated based on the number of messages received from the encounter nodes. Therefore, the increase in the suspicious score indicates that the scored node frequently generates and forwards the messages. After each node sufficiently updates suspicious scores, it identifies malicious nodes based on their suspicious scores. Through simulation experiments, we show the effectiveness of the proposed method.

Pages: 26 to 29

Copyright: Copyright (c) IARIA, 2019

Publication date: June 30, 2019

Published in: conference

ISSN: 2308-4219

ISBN: 978-1-61208-719-1

Location: Rome, Italy

Dates: from June 30, 2019 to July 4, 2019