Results 1 - 10 of 4,211

SEAD: Secure Efficient Distance Vector Routing for Mobile Wireless Ad Hoc Networks

by Yih-Chun Hu, David B. Johnson, Adrian Perrig , 2003
"... An ad hoc network is a collection of wireless computers (nodes), communicating among themselves over possibly multihop paths, without the help of any infrastructure such as base stations or access points. Although many previous ad hoc network routing protocols have been based in part on distance vec ..."
Abstract - Cited by 534 (8 self) - Add to MetaCart
operations in the protocol. SEAD performs well over the range of scenarios we tested, and is robust against multiple uncoordinated attackers creating incorrect routing state in any other node, even in spite of any active attackers or compromised nodes in the network.

The Sybil Attack

by John Douceur, Judith S. Donath , 2002
"... Large-scale peer-to-peer systems face security threats from faulty or hostile remote computing elements. To resist these threats, many such systems employ redundancy. However, if a single faulty entity can present multiple identities, it can control a substantial fraction of the system, thereby unde ..."
Abstract - Cited by 1518 (1 self) - Add to MetaCart
Large-scale peer-to-peer systems face security threats from faulty or hostile remote computing elements. To resist these threats, many such systems employ redundancy. However, if a single faulty entity can present multiple identities, it can control a substantial fraction of the system, thereby

How To Prove Yourself: Practical Solutions to Identification and Signature Problems

by Amos Fiat, Adi Shamir , 1987
"... In this paper we describe simple identification and signature schemes which enable any user to prove his identity and the authenticity of his messages to any other user without shared or public keys. The schemes are provably secure against any known or chosen message attack ff factoring is difficult ..."
Abstract - Cited by 1028 (1 self) - Add to MetaCart
In this paper we describe simple identification and signature schemes which enable any user to prove his identity and the authenticity of his messages to any other user without shared or public keys. The schemes are provably secure against any known or chosen message attack ff factoring

Securing ad hoc networks

by Lidong Zhou, Zygmunt J. Haas
"... Ad hoc networks are a new wireless networking paradigm for mobile hosts. Unlike traditional mobile wireless networks, ad hoc networks do not rely on any fixed infrastructure. Instead, hosts rely on each other to keep the network connected. The military tactical and other security-sensitive operation ..."
Abstract - Cited by 1064 (15 self) - Add to MetaCart
-sensitive operations are still the main applications of ad hoc networks, although there is a trend to adopt ad hoc networks for commercial uses due to their unique properties. One main challenge in design of these networks is their vulnerability to security attacks. In this paper, we study the threats an ad hoc

Secure spread spectrum watermarking for multimedia

by Ingemar J. Cox, Joe Kilian, F. Thomson Leighton, Talal Shamoon - IEEE TRANSACTIONS ON IMAGE PROCESSING , 1997
"... This paper presents a secure (tamper-resistant) algorithm for watermarking images, and a methodology for digital watermarking that may be generalized to audio, video, and multimedia data. We advocate that a watermark should be constructed as an independent and identically distributed (i.i.d.) Gauss ..."
Abstract - Cited by 1100 (10 self) - Add to MetaCart
. In these cases, the watermark detector unambiguously identifies the owner. Further, the use of Gaussian noise, ensures strong resilience to multiple-document, or collusional, attacks. Experimental results are provided to support these claims, along with an exposition of pending open problems.

The Sybil attack in sensor networks: Analysis & Defenses

by James Newsome, Elaine Shi, Dawn Song, Adrian Perrig - THIRD INTERNATIONAL SYMPOSIUM ON INFORMATION PROCESSING IN SENSOR NETWORKS, IPSN, 26 – 27 APRIL 2004 PAGE(S): 259 – 268 , 2004
"... Security is important for many sensor network applications. A particularly harmful attack against sensor and ad hoc networks is known as the Sybil attack [6], where a node illegitimately claims multiple identities. This paper system-atically analyzes the threat posed by the Sybil attack to wireless ..."
Abstract - Cited by 392 (1 self) - Add to MetaCart
Security is important for many sensor network applications. A particularly harmful attack against sensor and ad hoc networks is known as the Sybil attack [6], where a node illegitimately claims multiple identities. This paper system-atically analyzes the threat posed by the Sybil attack to wireless

Sybilguard: Defending against sybil attacks via social networks

by Haifeng Yu, Michael Kaminsky, Phillip B. Gibbons, Abraham Flaxman - In ACM SIGCOMM ’06 , 2006
"... Peer-to-peer and other decentralized, distributed systems are known to be particularly vulnerable to sybil attacks. In a sybil attack, a malicious user obtains multiple fake identities and pretends to be multiple, distinct nodes in the system. By controlling a large fraction of the nodes in the syst ..."
Abstract - Cited by 331 (6 self) - Add to MetaCart
Peer-to-peer and other decentralized, distributed systems are known to be particularly vulnerable to sybil attacks. In a sybil attack, a malicious user obtains multiple fake identities and pretends to be multiple, distinct nodes in the system. By controlling a large fraction of the nodes

Providing robust and ubiquitous security support for mobile ad-hoc networks

by Jiejun Kong, Petros Zerfos, Haiyun Luo, Songwu Lu, Lixia Zhang - IN ICNP, 2001 , 2001
"... Providing security support for mobile ad-hoc networks is challenging for several reasons: (a) wireless networks are susceptible to attacks ranging from passive eavesdropping to active interfering, occasional break-ins by adversaries may be inevitable in a large time window; (b) mobile users demand “ ..."
Abstract - Cited by 320 (8 self) - Add to MetaCart
Providing security support for mobile ad-hoc networks is challenging for several reasons: (a) wireless networks are susceptible to attacks ranging from passive eavesdropping to active interfering, occasional break-ins by adversaries may be inevitable in a large time window; (b) mobile users demand

Automated Analysis of Cryptographic Protocols Using Murphi

by John C. Mitchell, Mark Mitchell, Ulrich Stern , 1997
"... A methodology is presented for using a generalpurpose state enumeration tool, Murphi, to analyze cryptographic and security-related protocols. We illustrate the feasibility of the approach by analyzing the Needham-Schroeder protocol, finding a known bug in a few seconds of computation time, and anal ..."
Abstract - Cited by 296 (25 self) - Add to MetaCart
, and analyzing variants of Kerberos and the faulty TMN protocol used in another comparative study. The efficiency of Murphi allows us to examine multiple runs of relatively short protocols, giving us the ability to detect replay attacks, or errors resulting from confusion between independent execution of a

High Performance Parametric Modeling with Nimrod/G: Killer Application for the Global Grid?

by David Abramson, Jon Giddy, Lew Kotler , 2000
"... This paper examines the role of parametric modeling as an application for the global computing grid, and explores some heuristics which make it possible to specify soft real time deadlines for larger computational experiments. We demonstrate the scheme with a case study utilizing the Globus toolkit ..."
Abstract - Cited by 283 (54 self) - Add to MetaCart
of the airfoil multiple times while varying key parameters such as angle of attack, air speed, etc. The results of these multiple experiments yield a picture of how the wing behaves in different parts of parametric space. Over the past several years, we have developed a specialized parametric modeling system
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