The effective group key agreement protocol for ad-hoc networks for medical emergency environments

In a medical emergency case, the secure communication between medical learn members is very important, though the medical emergence service is conducted with no communication infra. An ad-hoc network can be a good solution to support the group communication with no infra structure such as the communication between medical team members. A Group Key Agreement is a process to share a group key among a group, with each one's contribution. Ad-hoc network is a network serving peep-to-peer communication between nodes without infrastructures. A node in ad-hoc network leaves and joins willingly. Therefore, ad-hoc network has dynamic topology inherently. Nodes in ad-hoc network have constrained computing power and limited battery. To secure a group communication in ad-hoc network environment, some thoughts for efficient group key agreement mechanism must be given to constrained computing power, lack of trusted entity. While many of group key agreement protocols which have been studied before are expensive to be adapted in ad-hoc network, lack of security proof, assuming all nodes have the same computing power which is not in reality. With this consideration, we present a secure group key agreement protocol for ad-hoc network for medical emergency environments.