Protocol Model Based on Cross-domain Authentication and Key Agreement

In this paper,a new protocol which combines cross-domain authentication and key agreement together is proposed to solve the repeat computing problem in both procedures.Utilizing public key cryptography,the proposed protocol combines both cross-domain authentication protocol and key agreement protocol,and implements both functions in a single protocol with less computational resources,storage resources and network bandwidth.Theoretical analysis and performance comparison results show that the proposed protocol can provide confidentiality,authentication,integrity,nonrepudiation and other security guarantees.Besides,it has a high level of efficiency.