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» Mechanism Design on Trust Networks
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CCS
2003
ACM
15 years 11 months ago
Using graphic turing tests to counter automated DDoS attacks against web servers
We present WebSOS, a novel overlay-based architecture that provides guaranteed access to a web server that is targeted by a denial of service (DoS) attack. Our approach exploits t...
William G. Morein, Angelos Stavrou, Debra L. Cook,...
CODASPY
2011
14 years 10 months ago
Relationship-based access control: protection model and policy language
Social Network Systems pioneer a paradigm of access control that is distinct from traditional approaches to access control. Gates coined the term Relationship-Based Access Control...
Philip W. L. Fong
IWCMC
2006
ACM
16 years 14 days ago
A novel broadcast technique for high-density ad hoc networks
Broadcasting in ad hoc networks is required for many routing and other network-layer protocols to request information like routes or locations about destination nodes. Most of the...
Ai Hua Ho, Alexander J. Aved, Kien A. Hua
DIALM
2005
ACM
130views Algorithms» more  DIALM 2005»
15 years 8 months ago
On lower bounds for MAC layer contention in CSMA/CA-based wireless networks
Wireless LANs operating within unlicensed frequency bands require random access schemes such as CSMA/CA, so that wireless networks from different administrative domains (for exam...
Frank A. Zdarsky, Ivan Martinovic, Jens B. Schmitt
ICDE
2008
IEEE
139views Database» more  ICDE 2008»
16 years 7 months ago
Maintaining Connectivity in Dynamic Multimodal Network Models
Network data models are frequently used as a mechanism to describe the connectivity between spatial features in many emerging GIS applications (location-based services, transporta...
Petko Bakalov, Erik G. Hoel, Wee-Liang Heng, Vassi...