Quantcast
Channel: Cryptology ePrint Archive
Viewing all articles
Browse latest Browse all 30224

Bilinear Entropy Expansion from the Decisional Linear Assumption, by Lucas Kowalczyk and Allison Bishop Lewko

$
0
0
We develop a technique inspired by pseudorandom functions that allows us to increase the entropy available for proving the security of dual system encryption schemes under the Decisional Linear Assumption. We show an application of the tool to Attribute-Based Encryption by presenting a Key-Policy ABE scheme that exhibits a significant improvement over the state of the art schemes in public parameter size in terms of the number of attribute-uses allowed in the policy while remaining fully secure under the Decisional Linear Assumption.

Viewing all articles
Browse latest Browse all 30224

Trending Articles