AI and Cloud Computing

Chapter Four: Provably secure verifier-based password authenticated key exchange based on lattices

Jinxia Yu^a; Huanhuan Lian^a; Zongqu Zhao^a; Yongli Tang^a; Xiaojun Wang^b    a Henan Polytechnic University, Jiaozuo, China^b Dublin City University, Dublin, Ireland

Abstract

Verifier-based Password Authenticated Key Exchange (VPAKE) protocol enables users to generate a session key over insecure channels, which can limit the impact of server's information leakage. However, most existing VPAKE protocols are based on the integer factorization problem and the discrete logarithm problem; they cannot resist attack by quantum computers. In this chapter, we propose a new VPAKE protocol based on lattices. The protocol is constructed by using Chosen-Ciphertext Attacks ...