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IEEECIT
2010
IEEE
13 years 2 months ago
Efficient Sharing of Secure Cloud Storage Services
Suppose Bob, the boss in Company A, pays a secure cloud storage service and authorizes all the employees in that company to share such a service. There exists a user hierarchy: Bob...
Qin Liu, Guojun Wang, Jie Wu
SCN
2010
Springer
144views Communications» more  SCN 2010»
13 years 3 months ago
Generic Constructions of Parallel Key-Insulated Encryption
Exposure of a secret key is a significant threat in practice. As a notion of security against key exposure, Dodis et al. advocated key-insulated security, and proposed concrete k...
Goichiro Hanaoka, Jian Weng
ISPEC
2011
Springer
12 years 7 months ago
Traitor Tracing against Public Collaboration
Abstract. Broadcast encryption provides a convenient method to distribute digital content to subscribers over an insecure broadcast channel. Traitor tracing is needed because some ...
Xingwen Zhao, Fangguo Zhang
EUROCRYPT
2009
Springer
14 years 5 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...
PKC
2010
Springer
210views Cryptology» more  PKC 2010»
13 years 8 months ago
Algebraic Cryptanalysis of the PKC'2009 Algebraic Surface Cryptosystem
Abstract. In this paper, we fully break the Algebraic Surface Cryptosystem (ASC for short) proposed at PKC’2009 [3]. This system is based on an unusual problem in multivariate cr...
Jean-Charles Faugère, Pierre-Jean Spaenleha...