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Identifier

000381063

Title

LEoNIDIS: a low-latency and energy-efficient network-level intrusion detection system

Alternative Title

LEoNIDIS: ένα σύστημα ανίχνευσης δικτυακών επιθέσεων γρήγορης απόκρισης και χαμηλής ενεργειακής κατανάλωσης

Author

Τσικουδής, Νικόλαος

Thesis advisor

Μαρκάτος, Ευάγγελος

Abstract

Over the past decade, the design and implementation of low-power systems has received significant attention. Started with data centers and battery-operated mobile devices, it has recently branched to core network devices such as routers. Towards this direction, we aim to reduce the power consumption of Network-level Intrusion Detection Systems (NIDS), which are used to improve the secure operation of modern computer networks. Unfortunately, traditional approaches to low-power system design, such as frequency scaling and core deactivation, lead to a disproportionate increase in packet processing and queuing times. In this work, we show that this increase has a negative impact on the detection latency and impedes a timely reaction of a NIDS to the incoming attacks. To address this issue, we present LEoNIDS: a NIDS architecture that resolves the energy-latency tradeoff by providing both low power consumption and low detection latency at the same time. The key idea of LEoNIDS is to identify the packets that are more likely to carry an attack. These packets are given higher priority so as to achieve low attack detection latency, while the rest of the packets are scheduled to run at a much lower priority, achieving overall low power consumption. Our results indicate that LEoNIDS consumes comparable power to a state-of-the-art low-power design, while, at the same time, achieving up to an order of magnitude faster attack detection latency.

Language

Greek, English

Subject

IDS

NIDS

Power energy consumption

Issue date

2013-07-19

Collection

School/Department--School of Sciences and Engineering--Department of Computer Science--Post-graduate theses

Type of Work--Post-graduate theses

Views

482

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