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ŠIŠMIŠ, L. KOŘENEK, J.
Original Title
Analysis of TLS Prefiltering for IDS Acceleration
Type
conference paper
Language
English
Original Abstract
Network intrusion detection systems (IDS) and intrusion prevention systems (IPS) have proven to play a key role in securing networks. However, due to their computational complexity, the deployment is difficult and expensive. Therefore, many times the IDS is not powerful enough to handle all network traffic on high-speed network links without uncontrolled packet drop. High-speed packet processing can be achieved using many CPU cores or an appropriate acceleration. But the acceleration has to preserve the detection quality and has to be flexible to handle ever-emerging security threats. One of the common acceleration methods among intrusion detection/prevention systems is the bypass of encrypted packets of the Transport Layer Security (TLS) protocol. This is based on the fact that IDS/IPS cannot match signatures in the packet encrypted payload. The paper provides an analysis and comparison of available TLS bypass solutions and proposes a high-speed encrypted TLS Prefilter for further acceleration. We are able to demonstrate that using our technique, the IDS performance has tripled and at the same time detection results have resulted in a lower rate of false positives. It is designed as a software-only architecture with support for commodity cards. However, the architecture allows smooth transfer of the proposed method to the HW-based solution in Field-programmable gate array (FPGA) network interface cards (NICs).
Keywords
IDS, TLS, DPDK, Prefilter, Suricata, Performance, Acceleration, Throughput, Measurements
Authors
ŠIŠMIŠ, L.; KOŘENEK, J.
Released
21. 3. 2023
Publisher
Springer Nature Switzerland AG
Location
Madrid
ISBN
978-3-031-28485-4
Book
Passive and Active Measurement 2023
Edition
Lecture Notes in Computer Science
0302-9743
Periodical
Year of study
2023
Number
13882
State
Federal Republic of Germany
Pages from
85
Pages to
109
Pages count
25
URL
https://link.springer.com/chapter/10.1007/978-3-031-28486-1_5
BibTex
@inproceedings{BUT185697, author="Lukáš {Šišmiš} and Jan {Kořenek}", title="Analysis of TLS Prefiltering for IDS Acceleration", booktitle="Passive and Active Measurement 2023", year="2023", series="Lecture Notes in Computer Science", journal="Lecture Notes in Computer Science", volume="2023", number="13882", pages="85--109", publisher="Springer Nature Switzerland AG", address="Madrid", doi="10.1007/978-3-031-28486-1\{_}5", isbn="978-3-031-28485-4", issn="0302-9743", url="https://link.springer.com/chapter/10.1007/978-3-031-28486-1_5" }