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» A Group Signature Scheme from Lattice Assumptions
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CCS
2010
ACM
14 years 11 months ago
Synchronized aggregate signatures: new definitions, constructions and applications
An aggregate signature scheme is a digital signature scheme where anyone given n signatures on n messages from n users can aggregate all these signatures into a single short signa...
Jae Hyun Ahn, Matthew Green, Susan Hohenberger
ICIP
1999
IEEE
16 years 9 days ago
Data Hiding in Video
We propose a video data embedding scheme in which the embedded signature data is reconstructed without knowing the original host video. The proposed method enables high rate of da...
Jong Jin Chae, B. S. Manjunath
ECCC
2007
185views more  ECCC 2007»
14 years 10 months ago
Trapdoors for Hard Lattices and New Cryptographic Constructions
We show how to construct a variety of “trapdoor” cryptographic tools assuming the worst-case hardness of standard lattice problems (such as approximating the length of the sho...
Craig Gentry, Chris Peikert, Vinod Vaikuntanathan
EUROCRYPT
2009
Springer
15 years 11 months ago
Asymmetric Group Key Agreement
A group key agreement (GKA) protocol allows a set of users to establish a common secret via open networks. Observing that a major goal of GKAs for most applications is to establish...
Qianhong Wu, Yi Mu, Willy Susilo, Bo Qin, Josep Do...
CCS
2010
ACM
15 years 5 months ago
Attribute-based signature and its applications
In an attribute-based signature (ABS), users sign messages with any predicate of their attributes issued from an attribute authority. Under this notion, a signature attests not to...
Jin Li, Man Ho Au, Willy Susilo, Dongqing Xie, Kui...