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Military Group Key Management for Mobile and Secure Multicast Communications  

Jung, Youn-Chan (가톨릭대학교 정보통신전자공학부 통신네트워크 연구실)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.35, no.6B, 2010 , pp. 977-983 More about this Journal
Abstract
In mobile and secure military networks, full-meshed IPSec tunnels, which do correspond to not physical links but logical links between each IPSec device and its peer, are required to provide multicast communications. All IPSec devices need support in changing IPSec tunnels by a way of using a multicast group key which is updated dynamically. Tactical terminals, which often constitute a group, need also secure multicast communications in the same group members. Then, the multicast group key is required to be updated dynamically in order to support group members' mobility. This paper presents challenging issues of designing a secure and dynamic group key management of which concept is based on the Diffie-Hellman (DH) key exchange algorithm and key trees. The advantage of our dynamic tree based key management is that it enables the dynamic group members to periodically receive status information from every peer members and effectively update a group key based on dynamically changing environments.
Keywords
Military Networks; IPSec Tunnels; Tactical Terminals; Multicast Communications; Group Key Management; Key Tree;
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