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A Decentralized Group Key Management Scheme for the Decentralized P2P Environment

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2 Author(s)
Deuk-Whee Kwak ; Telecommun. Network Lab., Daejeon ; JongWon Kim

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, DECLKH, solves the single point of failure problems of LKH with much more enhanced performance than TGDH.

Published in:

Communications Letters, IEEE  (Volume:11 ,  Issue: 6 )