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105
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IJNSEC
2011
14 years 4 months ago
2011
We first analyze the security of a short signature scheme without random oracles called ZCSM scheme and point out that it cannot support unforgeable under the chosen message and ...
105
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EUROCRYPT
2011
Springer
14 years 1 months ago
2011
Springer
We propose a Multi-Authority Attribute-Based Encryption (ABE) system. In our system, any party can become an authority and there is no requirement for any global coordination othe...
ASIACRYPT
2009
Springer
15 years 4 months ago
2009
Springer
Group encryption (GE) schemes, introduced at Asiacrypt’07, are an encryption analogue of group signatures with a number of interesting applications. They allow a sender to encryp...
115
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EUROCRYPT
2012
Springer
12 years 12 months ago
2012
Springer
We describe a compression technique that reduces the public key size of van Dijk, Gentry, Halevi and Vaikuntanathan’s (DGHV) fully homomorphic scheme over the integers from ˜O(...
CRYPTO
2010
Springer
14 years 10 months ago
2010
Springer
We present a technique for delegating a short lattice basis that has the advantage of keeping the lattice dimension unchanged upon delegation. Building on this result, we construct...