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» On Security Notions for Verifiably Encrypted Signature
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EUROCRYPT
2006
Springer
13 years 11 months ago
Sequential Aggregate Signatures and Multisignatures Without Random Oracles
We present the first aggregate signature, the first multisignature, and the first verifiably encrypted signature provably secure without random oracles. Our constructions derive f...
Steve Lu, Rafail Ostrovsky, Amit Sahai, Hovav Shac...
CCS
2010
ACM
14 years 2 months ago
Cryptographic role-based security mechanisms based on role-key hierarchy
Even though role-based access control (RBAC) can tremendously help us minimize the complexity in administering users, it is still needed to realize the notion of roles at the reso...
Yan Zhu, Gail-Joon Ahn, Hongxin Hu, Huaixi Wang
IJNSEC
2008
107views more  IJNSEC 2008»
13 years 7 months ago
Short Designated Verifier Signature Scheme and Its Identity-based Variant
The notion of strong designated verifier signature was put forth by Jakobsson, Sako and Impagliazzo in 1996, but the formal definition was defined recently by Saeednia, Kremer and...
Xinyi Huang, Willy Susilo, Yi Mu, Futai Zhang
CSL
2006
Springer
13 years 11 months ago
Relating Two Standard Notions of Secrecy
Abstract. Two styles of definitions are usually considered to express that a security protocol preserves the confidentiality of a data s. Reachability-based secrecy means that s sh...
Véronique Cortier, Michaël Rusinowitch...
PKC
2011
Springer
185views Cryptology» more  PKC 2011»
12 years 10 months ago
Signatures on Randomizable Ciphertexts
xtended abstract which appears in the 2011 International Conference on Theory and Practice in Public Key Cryptography PKC 2011 (6–9 march 2011, Taormina, Italy) D. Catalano, N. F...
Olivier Blazy, Georg Fuchsbauer, David Pointcheval...