A Dynamic Authenticated Group Key Agreement Scheme;

An authenticated group key agreement protocol based on the DLE protocol—EAGKA;

A Peer Dynamic Group Key Agreement Protocol;

The goal of password-based group key exchange is to establish a high entropy session key used for secure communication through a low entropy password,reach the multi-security requirement among members.

The goal of password-based group key exchange is to establish a high entropy session key used for secure communication through a low entropy password,reach the multi-security requirement between members.

A dynamic secure and efficient group key agreement protocol;

Firstly, this paper give a brief analysis of the design of security protocol requirements and the theoretical basis of Group Key Agreement Protocol, present for several typical group key agreement protocol which fit for dynamic peer group, and then analyze Provable Security Theory which cause attention in formal analysis for the security protocol in recent years.

Study and Design of the Key Negotiation Protocol;

Results show that it can achieve the alleged authentication and key negotiation goals.

Authentication and key negotiation is an elementary protocol in constructing a secure network system,and it is the implementation foundation of the key management protocol and the secure routing protocol.