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ACNS
2009
Springer
147views Cryptology» more  ACNS 2009»
15 years 4 months ago
Construction of Threshold Public-Key Encryptions through Tag-Based Encryptions
In this paper, we propose a notion of threshold tag-based encryption schemes that simplifies the notion of threshold identity-based encryption schemes, and we show a conversion fro...
Seiko Arita, Koji Tsurudome
JCS
2011
72views more  JCS 2011»
15 years 1 months ago
Automatically deriving information-theoretic bounds for adaptive side-channel attacks
We present a model of adaptive attacks which we combine with information-theoretic metrics to quantify the information revealed to an adaptive adversary. This enables us to expres...
Boris Köpf, David A. Basin
AMW
2011
14 years 10 months ago
Private Database Synthesis for Outsourced System Evaluation
The goal of this paper is to permit secure outsourced system evaluation. We propose a method for generating synthetic databases and obfuscating a workload of queries in order to pr...
Vani Gupta, Gerome Miklau, Neoklis Polyzotis
DBSEC
2011
233views Database» more  DBSEC 2011»
14 years 10 months ago
Multiparty Authorization Framework for Data Sharing in Online Social Networks
Online social networks (OSNs) have experienced tremendous growth in recent years and become a de facto portal for hundreds of millions of Internet users. These OSNs offer attractiv...
Hongxin Hu, Gail-Joon Ahn
ICDE
2008
IEEE
129views Database» more  ICDE 2008»
16 years 8 months ago
Optimal Boolean Matrix Decomposition: Application to Role Engineering
Abstract-- A decomposition of a binary matrix into two matrices gives a set of basis vectors and their appropriate combination to form the original matrix. Such decomposition solut...
Haibing Lu, Jaideep Vaidya, Vijayalakshmi Atluri