Authenticated key exchange with entities from different settings and varied groups

摘要: Authenticated key exchange AKE is a very important primitive in cryptography. In the last decades, many protocols appeared either certificate-based cert-based setting or identity-based id-based setting. real applications, entities from different settings may also have requirement to communicate with each other. Several papers concentrated on supporting multiple certification authorities generation centers, but few considered interoperability between two settings. Furthermore, existing approaches are still inadequate parameters algebraic groups.