Search

In view of the fact that server stored the passwords directly in plaintext, there was a risk of server compromise, and two-party PAKE protocol was not suitable for large-scale communication systems, a three-party verifier-based password authenticated key exchange protocol from lattices was proposed.Hashing scheme and zero-knowledge password policy check were combined to realize the generation of verifier and the password checking.A novel verifier-based 3PAKE protocol was constructed by using CCA-secure public-key encryption from lattices, which realized mutual authentication.Security and performance analysis shows that the proposed protocol has better advantages in communication efficiency and security.

In view of the fact that server stored the passwords directly in plaintext, there was a risk of server compromise, and two-party PAKE protocol was not suitable for large-scale communication systems, a three-party verifier-based password authenticated key exchange protocol from lattices was proposed.Hashing scheme and zero-knowledge password policy check were combined to realize the generation of verifier and the password checking.A novel verifier-based 3PAKE protocol was constructed by using CCA-secure public-key encryption from lattices, which realized mutual authentication.Security and performance analysis shows that the proposed protocol has better advantages in communication efficiency and security.

Password-based three-party authenticated key exchange protocol allow clients to establish a protected session key through a server over insecure channels.Most of the existing PAKE protocols on lattices were designed for the two parties,which could not be applied to large-scale communication systems,so a novel three-party PAKE protocol from lattices was proposed.The PAKE protocol was constructed by using a splittable public-key encryption scheme and an associated approximate smooth projective Hash function,and message authentication mechanism was introduced in the protocol to resist replay attacks.Compared with the similar protocols,the new protocol reduces the number of communication round and improves the efficiency and the security of protocol applications.

Password-based three-party authenticated key exchange protocol allow clients to establish a protected session key through a server over insecure channels.Most of the existing PAKE protocols on lattices were designed for the two parties,which could not be applied to large-scale communication systems,so a novel three-party PAKE protocol from lattices was proposed.The PAKE protocol was constructed by using a splittable public-key encryption scheme and an associated approximate smooth projective Hash function,and message authentication mechanism was introduced in the protocol to resist replay attacks.Compared with the similar protocols,the new protocol reduces the number of communication round and improves the efficiency and the security of protocol applications.