title: A simple lattice-based PKE scheme.
abstract: In this paper, we first present a new lattice-based PKE scheme on SIS, proving that it achieves CPA-security under DBi-ISIS assumption. Compared to some lattice-based schemes, ours has some advantages and is quite efficient as well as great simplicity. Similarly, we give a lattice-based PKE with multiple bits which is CPA secure under DBi-ISIS assumption. We hope that our contributions help to pave the way for the development of lattice-based PKEs in the future work.
authors.affiliation: Information Security Center, Beijing University of Posts and Telecommunications, Beijing, 100876 China.
authors.forename: Limin
authors.initials: L
authors.lastname: Zhou
authors.affiliation: Information Security Center, Beijing University of Posts and Telecommunications, Beijing, 100876 China.
authors.forename: Zhengming
authors.initials: Z
authors.lastname: Hu
authors.affiliation: The Seventh Middle School of Zibo, Shandong, 255499 China.
authors.forename: Fengju
authors.initials: F
authors.lastname: Lv