NDLI: Mitigating bandwidth-exhaustion attacks using congestion puzzles

Content Provider	ACM Digital Library
Author	Wang, XiaoFeng Reiter, Michael K.
Abstract	We present congestion puzzles (CP), a new countermeasure to bandwidth-exhaustion attacks. Like other defenses based on client puzzles, CP attempts to force attackers to invest vast resources in order to effectively perform denial-of-service attacks. Unlike previous puzzle-based approaches, however, ours is the first designed for the bandwidth-exhaustion attacks that are common at the network (IP) layer. At the core of CP is an elegant distributed puzzle mechanism that permits routers to cooperatively impose and check puzzles. We demonstrate through analysis and simulation that CP can effectively defend networks from flooding attacks without relying on the formulation of attack signatures to filter traffic. Moreover, as many such attacks are conducted by "zombie" computers that have been silently commandeered without the knowledge of their owners, the overheads that CP imposes on heavily engaged zombies can increase the likelihood that the computer's owner detects the compromise and takes action to remedy it.
Starting Page	257
Ending Page	267
Page Count	11
File Format	PDF
ISBN	1581139616
DOI	10.1145/1030083.1030118
Language	English
Publisher	Association for Computing Machinery (ACM)
Publisher Date	2004-10-25
Publisher Place	New York
Access Restriction	Subscribed
Subject Keyword	Client puzzle Denial of service
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

Mitigating bandwidth-exhaustion attacks using congestion puzzles