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An efficient group key management protocol using code for key calculation: CKC
, Article Telecommunication Systems ; Volume 51, Issue 2-3 , 2012 , Pages 115-123 ; 10184864 (ISSN) ; Eidkhani, E ; Mortazavi, S. A ; Nemaney Pour, A ; Sharif University of Technology
2012
Abstract
This paper presents a new group key management protocol, CKC (Code for Key Calculation) for secure IP multicast. In this protocol which is based on logical key hierarchy, only the group key needs to be sent to new member at join. Then, using the group key current members and the new member calculate the necessary keys by node codes and one-way hash function. A node code is a random number assigned to each node to help users calculate necessary keys. Again, at leave server just sends the new group key to the remaining members. By this key, members calculate necessary keys using node codes and one-way hash function. The security of the keys is based on one-wayness of hash function. The results...
Simultaneous Group Membership for Key Management in Secure IP Multicast Using Hierarchical Approach
, M.Sc. Thesis Sharif University of Technology ; Nemaney Pour, Alireza (Supervisor)
Abstract
This research presents an efficient group key management protocol, CKCSS (Code for Key Calculation in Single and Simultaneous join/leave) for secure multicast. In this research, we propose a new protocol to reduce the key management overheads for single join/leave at first and then use the development of this technique for simultaneous one. This protocol is based on logical key hierarchy. In this protocol, when new members join the group, server sends only the group key to those new members. Then, current members and the new members calculate all the necessary keys by node codes and one-way hash function. A node code is a random number assigned to each key to help users calculate the...