IEEE Communications Letters · 2007 · 12 citations · 1 references
ComputingComputer ScienceComputer SystemsCryptographyFault ToleranceFault-tolerant ComputingCryptographic AlgorithmsDistributed AlgorithmsDistributed ComputingKey Exchange ProtocolsKey Management ArchitectureDiffie-hellman ProtocolsDistributed Key ManagementFault-tolerant Key ManagementGroup Key ExchangeGroup Key ManagementHierarchical Key ManagementKey DistributionKey Hierarchy Design
In this letter, we propose a decentralized group key management algorithm called DECLKH, which combines the logical key hierarchy (LKH) and the tree-based group Diffie- Hellman (TGDH) schemes. LKH is a centralized key distribution scheme, and thus, lacks fault-tolerance. On the other hand, TGDH is relatively inferior in terms of performance to LKH although it is fault-tolerant. The proposed algorithm, <i xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">DECLKH</i> , solves the single point of failure problems of LKH with much more enhanced performance than TGDH.
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