Abstract. We construct a lattice-based predicate encryption scheme for multi-dimensional range and multidimensional subset queries. Our scheme is selectively secure and weakly attr...
Abstract. We investigate the security of the family of MQQ public key cryptosystems using multivariate quadratic quasigroups (MQQ). These cryptosystems show especially good perform...
We introduce a lattice-based group signature scheme that provides several noticeable improvements over the contemporary ones: simpler construction, weaker hardness assumptions, and...
We construct an identity-based encryption (IBE) scheme that is tightly secure in a very strong sense. Specifically, we consider a setting with many instances of the scheme and ma...