162 search results - page 23 / 33 » A Group Signature Scheme from Lattice Assumptions |
ACNS
2010
Springer
15 years 3 months ago
2010
Springer
To this day, realizations in the standard-model of (lossy) trapdoor functions from discrete-log-type assumptions require large public key sizes, e.g., about Θ(λ2 ) group elements...
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PKC
1998
Springer
15 years 3 months ago
1998
Springer
The ElGamal encryption scheme has been proposed several years ago and is one of the few probabilistic encryption schemes. However, its security has never been concretely proven bas...
CRYPTO
2012
Springer
13 years 1 months ago
2012
Springer
We give the first proof of security for an identity-based encryption scheme in the quantum random oracle model. This is the first proof of security for any scheme in this model ...
CORR
2007
Springer
14 years 10 months ago
2007
Springer
We consider the least-square regression problem with regularization by a block 1-norm, that is, a sum of Euclidean norms over spaces of dimensions larger than one. This problem, r...
PODS
1999
ACM
15 years 3 months ago
1999
ACM
Query optimizers rely on fast, high-quality estimates of result sizes in order to select between various join plans. Selfjoin sizes of relations provide bounds on the join size of...