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CCS
2008
ACM
13 years 11 months ago
Assessing query privileges via safe and efficient permission composition
We propose an approach for the selective enforcement of access control restrictions in, possibly distributed, large data collections based on two basic concepts: i) flexible autho...
Sabrina De Capitani di Vimercati, Sara Foresti, Su...
CCS
2009
ACM
14 years 4 months ago
NISAN: network information service for anonymization networks
Network information distribution is a fundamental service for any anonymization network. Even though anonymization and information distribution about the network are two orthogona...
Andriy Panchenko, Stefan Richter, Arne Rache
CCS
2011
ACM
12 years 9 months ago
Trust-based anonymous communication: adversary models and routing algorithms
We introduce a novel model of routing security that incorporates the ordinarily overlooked variations in trust that users have for different parts of the network. We focus on ano...
Aaron Johnson, Paul F. Syverson, Roger Dingledine,...
ICC
2007
IEEE
125views Communications» more  ICC 2007»
14 years 3 months ago
A Novel Concept: Message Driven Frequency Hopping (MDFH)
—Frequency hopping systems have been widely used in military communications to prevent hostile jamming, interception and detection. In traditional frequency hopping (FH) systems,...
Qi Ling, Tongtong Li, Zhi Ding
TDHMS
2008
13 years 9 months ago
Constructing Good Covering Codes for Applications in Steganography
Application of covering codes to data embedding improves embedding efficiency and security of steganographic schemes. In this paper, we describe several familes of covering codes c...
Jürgen Bierbrauer, Jessica J. Fridrich