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SACMAT
2009
ACM
15 years 2 months ago
A formal framework to elicit roles with business meaning in RBAC systems
The role-based access control (RBAC) model has proven to be cost effective to reduce the complexity and costs of access permission management. To maximize the advantages offered...
Alessandro Colantonio, Roberto Di Pietro, Alberto ...
CCS
2010
ACM
14 years 9 months ago
Hierarchical attribute-based encryption for fine-grained access control in cloud storage services
Cloud computing, as an emerging computing paradigm, enables users to remotely store their data into a cloud so as to enjoy scalable services on-demand. Especially for small and me...
Guojun Wang, Qin Liu, Jie Wu
STOC
2005
ACM
93views Algorithms» more  STOC 2005»
15 years 9 months ago
Representing hard lattices with O(n log n) bits
We present a variant of the Ajtai-Dwork public-key cryptosystem where the size of the public-key is only O(n log n) bits and the encrypted text/clear text ratio is also O(n log n)...
Miklós Ajtai
WWW
2005
ACM
15 years 10 months ago
Duplicate detection in click streams
We consider the problem of finding duplicates in data streams. Duplicate detection in data streams is utilized in various applications including fraud detection. We develop a solu...
Ahmed Metwally, Divyakant Agrawal, Amr El Abbadi
ITNG
2008
IEEE
15 years 3 months ago
Implementing and Validating an Environmental and Health Monitoring System
In this paper the authors describe the implementation and validation of a prototype of an environmental and health monitoring system based on a Wireless Sensor Network (WSN). The ...
Marco Messina, Yen Yang Lim, Elaine Lawrence, Don ...