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» Security in the Web Services Framework
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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,...
IWFM
2000
167views Formal Methods» more  IWFM 2000»
15 years 7 months ago
An Algebraic Basis for Specifying and Enforcing Access Control in Security Systems
Security services in a multi-user environment are often based on access control mechanisms. Static of an access control policy can be formalised using abstract algebraic models. W...
Claus Pahl
STORAGESS
2005
ACM
16 years 1 days ago
An approach for fault tolerant and secure data storage in collaborative work environments
We describe a novel approach for building a secure and fault tolerant data storage service in collaborative work environments, which uses perfect secret sharing schemes to store d...
Arun Subbiah, Douglas M. Blough
CMS
2003
120views Communications» more  CMS 2003»
15 years 7 months ago
Extending the SDSI / SPKI Model through Federation Webs
Classic security systems use a trust model centered in the authentication procedure, which depends on a naming service. Even when using a Public Key Infrastructure as X.509, such s...
Altair Olivo Santin, Joni da Silva Fraga, Carlos M...
SEMWEB
2007
Springer
16 years 18 days ago
Towards Fine-grained Service Matchmaking by Using Concept Similarity
Several description frameworks to semantically describe and match services on the one hand and service requests on the other have been presented in the literature. Many of the curr...
Alberto Fernández, Axel Polleres, Sascha Os...