Paper 2002/009

Tree-based Group Key Agreement

Yongdae Kim, Adrian Perrig, and Gene Tsudik

Abstract

Secure and reliable group communication is an active area of research. Its popularity is caused by the growing importance of group-oriented and collaborative applications. The central research challenge is secure and efficient group key management. While centralized methods are often appropriate for key distribution in large multicast-style groups, many collaborative group settings require distributed key agreement techniques. This work investigates a novel group key agreement approach which blends so-called key trees with Diffie-Hellman key exchange. It yields a secure protocol suite (TGDH) that is both simple and fault-tolerant. Moreover, the efficiency of TGDH appreciably surpasses that of prior art.

Note: some major revision

Metadata
Available format(s)
PDF PS
Category
Cryptographic protocols
Publication info
Published elsewhere. Unknown where it was published
Keywords
Collaborative securityDiffie-Hellman protocoldynamic peer groupskey establishmentagreement protocols
Contact author(s)
kyongdae @ ics uci edu
History
2002-02-07: revised
2002-01-19: received
See all versions
Short URL
https://ia.cr/2002/009
License
Creative Commons Attribution
CC BY

BibTeX

@misc{cryptoeprint:2002/009,
      author = {Yongdae Kim and Adrian Perrig and Gene Tsudik},
      title = {Tree-based Group Key Agreement},
      howpublished = {Cryptology {ePrint} Archive, Paper 2002/009},
      year = {2002},
      url = {https://eprint.iacr.org/2002/009}
}
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