Comparison of group key establishment protocols

Authors : SERAP ŞAHİN, RABİA ASLANOĞLU

Pages : 46-57

View : 14 | Download : 6

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :Recently group-oriented applications over unsecure open networks such as Internet or wireless networks have become very popular. Thus, group communication security over unsecure open networks has become a vital concern. Group key establishment insert ignore into journalissuearticles values(GKE); protocols are used to satisfy the confidentiality requirement of a newly started communication session by the generation or sharing of an ephemeral common key between the group members. In this study, we analyze the computation and communication efficiency of GKE protocols. Besides confidentiality, the security characteristics of identification and integrity control are also required for all steps of the protocol implementations. Thus, the main contribution of this work is to provide the computation and communication efficiency analysis of the same GKE protocols along with the identification of the group entities and integrity control of messages during the protocol steps. The specific implementation and analysis of GKE protocols are performed by group key agreement insert ignore into journalissuearticles values(GKA); with pairing-based cryptography and group key distribution insert ignore into journalissuearticles values(GKD); with verifiable secret sharing, respectively. Finally, a comparison of GKA and GKD protocols on the basis of their strong points and cost characteristics are also provided to inform potential users.
Keywords : Group key establishment, secure communication, pairing based cryptography, verifiable secret sharing