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» Foundations of Group Signatures: The Case of Dynamic Groups
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ICCV
2011
IEEE
12 years 7 months ago
iGroup : Weakly supervised image and video grouping
We present a generic, efficient and iterative algorithm for interactively clustering classes of images and videos. The approach moves away from the use of large hand labelled tra...
Andrew Gilbert, Richard Bowden
SCN
2010
Springer
176views Communications» more  SCN 2010»
13 years 5 months ago
The Fiat-Shamir Transform for Group and Ring Signature Schemes
The Fiat-Shamir (FS) transform is a popular tool to produce particularly efficient digital signature schemes out of identification protocols. It is known that the resulting signat...
Ming-Feng Lee, Nigel P. Smart, Bogdan Warinschi
EUROCRYPT
2008
Springer
13 years 9 months ago
Threshold RSA for Dynamic and Ad-Hoc Groups
Abstract--We consider the use of threshold signatures in adhoc and dynamic groups such as MANETs ("mobile ad-hoc networks"). We first show that known threshold RSA signat...
Rosario Gennaro, Shai Halevi, Hugo Krawczyk, Tal R...
CARDIS
2004
Springer
126views Hardware» more  CARDIS 2004»
14 years 24 days ago
Anonymous Services using Smart Cards and Cryptography
More and more services provided by Internet pose a problem of privacy and anonymity. One cryptographic tool that could be used for solving this problem is the group signature [1, 5...
Sébastien Canard, Jacques Traoré
FC
2007
Springer
125views Cryptology» more  FC 2007»
14 years 1 months ago
Scalable Authenticated Tree Based Group Key Exchange for Ad-Hoc Groups
Task-specific groups are often formed in an ad-hoc manner within big structures, like companies. Take the following typical scenario: A high rank manager decides that a task force...
Yvo Desmedt, Tanja Lange, Mike Burmester