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Second Annual Conference on Communication Networks and Services Research (CNSR'04)
An Efficient Key Management for Large Dynamic Groups
Fredericton, N.B., Canada
May 19-May 21
ISBN: 0-7695-2096-0
Yingjie Wang, Shanghai Jiaotong University
Jianhua Li, Shanghai Jiaotong University
Ling Tie, Shanghai Jiaotong University
Qiang Li, Shanghai Jiaotong University
Key management for large dynamic groups is a difficult problem because of scalability and security. SKDC method is very weak in scalability. Logical key hierarchy (LKH) algorithm proposed in 1997 has greatly improved scalability for key management in large dynamic groups. In 1998 one-way-function tree (OFT) method appeared to obtain more efficiency than LKH. But OFT method has security breaches in collusion attacks. In this paper a new method will be presented, which is more efficient than OFT and resistant to collusion attacks.
Citation:
Yingjie Wang, Jianhua Li, Ling Tie, Qiang Li, "An Efficient Key Management for Large Dynamic Groups," cnsr, pp.131-136, Second Annual Conference on Communication Networks and Services Research (CNSR'04), 2004
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