An Identity-Based Cross-Domain Authenticated Asymmetric Group Key Agreement

Cross-domain authenticated asymmetric group key agreement allows members in different domains to establish a secure communication channel and the senders can be anyone. However, existing schemes do not meet requirement of batch verification negotiation phase, which makes have low efficiency. To address this problem, an identity-based cross-domain is proposed that supports verification. The performance analysis shows protocol highly efficient. Finally, proved under k-Bilinear Diffie–Hellman Exponent assumption.