International Association for Cryptologic Research

International Association
for Cryptologic Research

CryptoDB

Jingguo Bi

Affiliation: Tsinghua University

Publications

Year
Venue
Title
2014
PKC
2014
EPRINT
2010
EPRINT
Lattice-based Identity-Based Broadcast Encryption Scheme
Jin Wang Jingguo Bi
Motivated by the lattice basis delegation technique due to [8], we propose an adaptively secure identity-based broadcast encryption(IBBE) scheme based on the hard worst-case lattice problems. Our construction can be generalized to obtain a hierarchical IBBE (HIBBE) scheme easily. To the best of the authors' knowledge, our construction and its variants constitute the first adaptively secure IBBE schemes from lattices, which are believed secure in the post-quantum environment.