Sciweavers

83 search results - page 13 / 17
» Identity Delegation in Policy Based Systems
Sort
View
GRID
2006
Springer
13 years 7 months ago
Cacheable Decentralized Groups for Grid Resource Access Control
Abstract-- Sharing data among collaborators in widely distributed systems remains a challenge due to limitations with existing methods for defining groups across administrative dom...
Jeffrey Hemmes, Douglas Thain
IEEEARES
2006
IEEE
14 years 1 months ago
The Security Issue of Federated Data Warehouses in the Area of Evidence-Based Medicine
Healthcare organisations practicing evidence-based medicine strive to unite their data assets in order to achieve a wider knowledge base for more sophisticated research as well as...
Nevena Stolba, Marko Banek, A. Min Tjoa
PKC
2009
Springer
210views Cryptology» more  PKC 2009»
14 years 7 months ago
Controlling Access to an Oblivious Database Using Stateful Anonymous Credentials
In this work, we consider the task of allowing a content provider to enforce complex access control policies on oblivious protocols conducted with anonymous users. As our primary ...
Scott E. Coull, Matthew Green, Susan Hohenberger
CRYPTO
2009
Springer
172views Cryptology» more  CRYPTO 2009»
14 years 1 months ago
Dual System Encryption: Realizing Fully Secure IBE and HIBE under Simple Assumptions
We present a new methodology for proving security of encryption systems using what we call Dual System Encryption. Our techniques result in fully secure Identity-Based Encryption ...
Brent Waters
HICSS
2010
IEEE
131views Biometrics» more  HICSS 2010»
14 years 1 months ago
Using "Last-Minute" Sales for Vertical Differentiation on the Internet
In Internet based commerce, sellers often use multiple distribution channels for the sale of standard consumer goods. We study a model of second degree price discrimination in whi...
Ori Marom, Abraham Seidmann