Paper 2005/131 Original: eprint.iacr.org/2005/131 ↗

Dynamic Group Key Agreement in Tree-Based Setting

Ratna Dutta
Rana Barua
Abstract

We present a provably secure tree based authenticated group key agreement protocol in dynamic scenario. Bilinear pairing and multi-signature are at the heart of our protocol. We prove that our protocol is provably secure in the standard security model of Bresson et al. An appropriate modification of Katz-Yung approach to tree based setting is adopted while proving its security against active adversaries. The protocol has an in-built hierarchical structure that makes it desirable for certain applications.

Metadata
Available format(s)
PDF
Category
Cryptographic protocols
Publication info
Preprint.
History
2005-05-05: last updated
2005-05-05: published
Short URL
https://ia.cr/2005/131
License
https://creativecommons.org/licenses/by/4.0/

BibTeX

@misc{cryptoeprint:2005/131,
      author = {Ratna Dutta and Rana Barua},
      title = {Dynamic Group Key Agreement in Tree-Based Setting},
      howpublished = {Cryptology {ePrint} Archive, Paper 2005/131},
      year = {2005},
      url = {https://eprint.iacr.org/2005/131}
}
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