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» Distinguishing Attacks on T-Functions
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HIP
2005
Springer
208views Cryptology» more  HIP 2005»
15 years 5 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»
15 years 26 days 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
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WWW
2002
ACM
16 years 11 days 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
15 years 5 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»
14 years 11 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...