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» Distinguishing Attacks on T-Functions
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HIP
2005
Springer
208views Cryptology» more  HIP 2005»
14 years 1 months ago
Phish and HIPs: Human Interactive Proofs to Detect Phishing Attacks
In this paper, we propose a new class of Human Interactive Proofs (HIPs) that allow a human to distinguish one computer from another. Unlike traditional HIPs, where the computer is...
Rachna Dhamija, J. D. Tygar
WEWORC
2007
162views Cryptology» more  WEWORC 2007»
13 years 8 months ago
New Attacks on the Stream Cipher TPy6 and Design of New Ciphers the TPy6-A and the TPy6-B
The stream ciphers Py, Pypy and Py6 were designed by Biham and Seberry for the ECRYPT-eSTREAM project in 2005. The ciphers were promoted to the ‘Focus’ ciphers of the Phase II ...
Gautham Sekar, Souradyuti Paul, Bart Preneel
WWW
2002
ACM
14 years 8 months ago
Flash crowds and denial of service attacks: characterization and implications for CDNs and web sites
The paper studies two types of events that often overload Web sites to a point when their services are degraded or disrupted entirely - flash events (FEs) and denial of service at...
Jaeyeon Jung, Balachander Krishnamurthy, Michael R...
GLOBECOM
2006
IEEE
14 years 1 months ago
Wavelet-based Detection of DoS Attacks
— Automated detection of anomalies in network traffic is an important and challenging task. In this work we propose an automated system to detect volume-based anomalies in netwo...
Alberto Dainotti, Antonio Pescapè, Giorgio ...
ENTCS
2006
175views more  ENTCS 2006»
13 years 7 months ago
Observing Internet Worm and Virus Attacks with a Small Network Telescope
A network telescope is a portion of the IP address space which is devoted to observing inbound internet traffic. The purpose of a network telescope is to detect and log malicious ...
Uli Harder, Matt W. Johnson, Jeremy T. Bradley, Wi...