Identity-based group key management scheme in pervasive computing environment

Abstract

The requirements of group key management scheme in pervasive environment were analyzed.A new identity-based group key management scheme was proposed by combing the identity-based cryptography and STR protocol.Concerning nodes' free joining and leaving the group,group key renewing protocol was proposed,which could guarantee the forward security and backward security of the group key.The scheme can achieve security requirements and has less computation and communications load.