Source specific centralized secure multicast scheme based on IPSec

Group-oriented applications require multicast communication for distributing information among the group members efficiently. The deployment of such kind of applications in strategic and military grade organizations needs the secure group-oriented mechanism. The key concerns involved in secure multicast communication are "forward and backward security", "source/recipient identification and authentication", "key revocation" and "secure rekeying". This paper proposes a source specific centralized secure multicast scheme based on IPSec infrastructure by addressing these security challenges. The key management, in proposed secure multicast scheme, has been carried out using the Group Internet Key Exchange (G-IKE v2) version 2 protocol.