Title

Wildcarded identity-based encryption from lattices

Publication Name

Theoretical Computer Science

Abstract

Wildcard identity-based encryption (WIBE) is a generalization of hierarchical identity-based encryption (HIBE) where a sender can simultaneously encrypt messages to a group of users matching a certain pattern, defined as a sequence of identities and wildcards. This special feature makes WIBE a promising solution to distributed IoT data security. In this paper, we propose the first construction of a post-quantum WIBE scheme. Our scheme is proven secure in the standard model, and it enjoys the security in the future quantum computer era.

Open Access Status

This publication is not available as open access

Volume

902

First Page

41

Last Page

53

Share

COinS
 

Link to publisher version (DOI)

http://dx.doi.org/10.1016/j.tcs.2021.12.007