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Paper Abstract and Keywords
Presentation 2023-12-22 15:40
A Cooperation Method for Countermeasure against DDoS Attacks in CDNs Interconnected by CDNI
Kazuki Takashima, Daisuke Kotani, Yasuo Okabe (Kyoto Univ.) IA2023-55
Abstract (in Japanese) (See Japanese page) 
(in English) Currently, CDNs are one of major targets of DDoS attacks.
CDNs in CDNI, which aims to interconnect various CDNs for content distribution, will also be a target of DDoS attacks. In DDoS attacks towards CDNI, attackers will target multiple CDNs interconnected by CDNI to interrupt content distribution since CDNI will switch one CDN to another for distributing content. If CDNs participated in the CDNI share the information of attacks, effective DDoS mitigaiton methods can be activated as an countermeasure against the attacks.
Each CDN has its own system for detecting and mitigating DDoS attacks, and the levels in each CDN may be different. Therefore, a cooperation mechanism for DDoS attack detection and mitigation in CDNI needs to take such difference into consideration. However, existing cooperation mechanismsare are not suitable for countermeasure against DDoS attacks in CDNI. DOTS is not intended to share attack-oriented information like attack types, and STIX/TAXII are not intended for using under DDoS attacks, in which available resources may be severely restricted.
This paper proposes a new cooperation mechanism for a countermeasure against DDoS attacks in CDNI, which overcomes these challenges by expanding the data shared in DOTS into labels that represent the type of attack and the bottleneck resources caused by attacks, and by cooperating between DOTS and CDNI.
Our proposed mechanism allows a CDN under attack to send information to other CDNs in the same CDNI using these labels, indicating either the type of attack if they have the capability to identify it, or which resources became a bottleneck. So, other CDNs receiving such information can prepare for DDoS attacks in advance, such as deploying appropriate mitigation strategies if the type of attack is sent, or adding resources if information about the bottleneck is received.
Keyword (in Japanese) (See Japanese page) 
(in English) CDNI / DDoS attack / DOTS / / / / /  
Reference Info. IEICE Tech. Rep., vol. 123, no. 318, IA2023-55, pp. 59-66, Dec. 2023.
Paper # IA2023-55 
Date of Issue 2023-12-14 (IA) 
ISSN Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
Download PDF IA2023-55

Conference Information
Committee IN IA  
Conference Date 2023-12-21 - 2023-12-22 
Place (in Japanese) (See Japanese page) 
Place (in English) Satellite Campus Hiroshima 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Performance Analysis and Simulation, Robustness, Traffic and Throughput Measurement, Quality of Service (QoS) Control, Congestion Control, Overlay Network/P2P, CCN, ICN, Multicast, Routing, Security, etc. 
Paper Information
Registration To IA 
Conference Code 2023-12-IN-IA 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) A Cooperation Method for Countermeasure against DDoS Attacks in CDNs Interconnected by CDNI 
Sub Title (in English)  
Keyword(1) CDNI  
Keyword(2) DDoS attack  
Keyword(3) DOTS  
1st Author's Name Kazuki Takashima  
1st Author's Affiliation Kyoto University (Kyoto Univ.)
2nd Author's Name Daisuke Kotani  
2nd Author's Affiliation Kyoto University (Kyoto Univ.)
3rd Author's Name Yasuo Okabe  
3rd Author's Affiliation Kyoto University (Kyoto Univ.)
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Speaker Author-1 
Date Time 2023-12-22 15:40:00 
Presentation Time 25 minutes 
Registration for IA 
Paper # IA2023-55 
Volume (vol) vol.123 
Number (no) no.318 
Page pp.59-66 
Date of Issue 2023-12-14 (IA) 

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