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PKC
2011
Springer
185views Cryptology» more  PKC 2011»
14 years 1 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...
IEEEARES
2007
IEEE
15 years 4 months ago
Context-Dependent Access Control for Contextual Information
Abstract— Following Mark Weiser’s vision of ubiquitous computing and calm technology, computer systems should run in the background, preferably without the user noticing it at ...
Christin Groba, Stephan Grob, Thomas Springer
ESORICS
1994
Springer
15 years 2 months ago
Oblivious Signatures
Abstract. An oblivious signature with n keys (or messages) is a signature that the recipient can choose one of n keys (or messages) to get signed while the signer cannot find out o...
Lidong Chen
PROVSEC
2007
Springer
15 years 4 months ago
CCA2-Secure Threshold Broadcast Encryption with Shorter Ciphertexts
In a threshold broadcast encryption scheme, a sender chooses (ad-hoc) a set of n receivers and a threshold t, and then encrypts a message by using the public keys of all the recei...
Vanesa Daza, Javier Herranz, Paz Morillo, Carla R&...
CCS
2007
ACM
15 years 4 months ago
Security under key-dependent inputs
In this work we re-visit the question of building cryptographic primitives that remain secure even when queried on inputs that depend on the secret key. This was investigated by B...
Shai Halevi, Hugo Krawczyk