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EUROCRYPT
2010
Springer

Efficient Lattice (H)IBE in the Standard Model

9 years 2 months ago
Efficient Lattice (H)IBE in the Standard Model
We construct an efficient identity based encryption system based on the standard learning with errors (LWE) problem. Our security proof holds in the standard model. The key step in the construction is a family of lattices for which there are two distinct trapdoors for finding short vectors. One trapdoor enables the real system to generate short vectors in all lattices in the family. The other trapdoor enables the simulator to generate short vectors for all lattices in the family except for one. We extend this basic technique to an adaptively-secure IBE and a Hierarchical IBE.
Shweta Agrawal, Dan Boneh, Xavier Boyen
Added 02 Sep 2010
Updated 02 Sep 2010
Type Conference
Year 2010
Where EUROCRYPT
Authors Shweta Agrawal, Dan Boneh, Xavier Boyen
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